I just added Daly balancers to my 2 Eel (Seplos) batteries, thanks Andy for the video, makes me feel doing the right thing. Passive 150 mA balancing is too little for 280Ah cells.
The Daly balancer will work as well, just be mindful of the settings it needs. I think they are using average voltage or some kind of stuff. It's in a video I made a while back about the Daly active balancer.
I'm having issues with my 2 first generation Jakiper batteries, where they now shut off at around 51.5 volts... I ordered a RS232 to USB cable that is supposed to work with this BMS to look into more detail what's going on in there. If the packs are out of balance, is there any way to get them even again without this "surgery" through the settings in the BMS? And I actually suspect the SOC part of the BMS is shutting the battery down, not going by voltage... is that conceivable?
@@OffGridGarageAustralia No, I have not changed any settings in the BMS... I have the cable now and the software doesn't seem to even let me change any parameters... however, watching the logs from the software I can tell that one cell in each battery is behaving odd; discharging much quicker than the other cells and overcharging when the other cells are still in bulk mode... my guess is these cells are likely toast and will need to be replaced... one thing I could try is to take a good cell from battery 2 and replace the bad one in battery 1 and see if that battery behaves normally after this "surgery"... at least the cells are not welded, so I assume I could get replacements!?
15:40 After reaching the full absorbtion state and changing to float, my Victron MPPT´s decrease the Vbatt to 3,35V/Cell. So the Neeeey would stay on for ~50mV until the 3,3V is reached. So I think that should be okay. The Neeey would kick in in 50mV before Vmax and will stay on 50mV in float.
Yeah, it is still not optimal with the Gen1 NEEY but workable. Usually, I don't float but turn on some loads then, so voltage drops a bit anyway. I'm happy to just turn it on and off manually, when needed. I'm sure the Jaki can handle a bit of imbalance and smooth it out. The Seplos batteries worked fine just the internal balancer after a while.
@@OffGridGarageAustralia My setup is set with tail current. So I know, if the tail current is reached, the Battery is fully balanced. otherwise the tail current wont be that less. Then the MPPT´s shut of and my system is powered by the battery until it reaches the float voltage. Then the MPPT´s kick in to supply the load. But my system isn´t that big as yours and my Battery won´t charge that often to 100%. So every 100% here and there I know, that the cells where fully top balanced. 200Ah/24V with 12326Ah (total purchased Ah) with only 35 cycles says the smart shunt.
Hi Andy, and Thanks again for this video! Definitely it is the good issue, for make a good balancing this type of pack Battery.. (Because the original balance from the BMS is really not efficient!)
Great video, just one question: apart from the "smart part" of this inverter is there any difference between the neey and the old balancer in terms of speed or anything else?
@@GiocondoSticca The NEEY balances with 4A all the time, regardless the voltage difference. The capacitor balancer balancers slower, the lower the voltage difference is, but it can balance all cells at the same time, while the NEEY can do only one at a time. Both a great.
I see a PV inverter and PV charger that I haven't seen before. It seems to imply that there are two new devices. I'm only aware of the new Fronius from the other building. Is that the Fronius as either the PV inverter, PV charger, or are both of them the same Fronius box? Did I miss a video?
crazy how far out these batteries can be. im using a drop in battery(amperetime) on one of my sites and i couldn't get it to 27.6v without overvolt shutdown. the bms is ass so i had to open the pack up and manually discharge the problem cell. now it'll get to 27.6 and i floated there so the bms would work. i normally do 27.6 adsorb and 26.8 float but i think this bms stops balancing at 27.5v. i may gut it and get a better bms
Yes, I hate these glued and sealed batteries with unbalanced batteries. At least if you have access to the BMS you can turn off charge balance and let them sit there for a while to allow the BMS to balance while slowly increasing the voltage.
Andy, I want to buy Neey Active balancer. But how do I check its generation number? I checked that balancer in online stores, but they never mentioned about its any generation number
Sellers on Ali certainly mention generation 4. I bought one recently on one of their offer days 😊. Used it on my two batteries, worked a treat and now sitting in storage as the batteries are really behaving themselves 👍
The term Generation 4 is something we as a community invented but some sellers have taken over and use it so people know what they get. Always check with the seller before you buy that it is gen 4. If they don't know what that is, buy somewhere else. I have some links on my website: off-grid-garage.com/battery-management-systems-bms/
I'm using seplos BMS. I think Jakiper Battery' BMS also having Passive balancer. Do we need to turn off passive balance feature, when we're going to use active balancer on it?
I have a problem. I'm building two 12 V batteries for my camper. Watching your video I decided to buy two neey active balancer 4th generation. I want to balance 4 Cells but can't find a manual how to install. I am not really used to this language so I maybe made a mistake. Could I use this balancer for my project?
With a 12V battery you need to supply at least 28V to the NEEY B- and B+ connector to start it up. This can be either an external power supply or a step-up buck converter which steps up 12V to ~30V. I have shown the setup here connecting the JK BMS to a 4s battery. It's the same principle though as you would use for the NEEY. ua-cam.com/video/xdNEMl72z9s/v-deo.html
I’ve been running a seplos BMS with 230ah cells for over 2 years, the standard balancer has kept everything in check, though the pack was properly balanced to start with! Remember add more stuff to your batteries increases the risk of some piece of hardware going wrong and it killing your cells.
My Seplos bms managed to ruin the balance of my pack in just 4 months; I suspect cell number 9 was discharged because I have them on 2 shelves with one cable connecting cell 8 and 9; and the bms measures the voltage of cell 9 between 8+ and 9+ (I know it has a 9- lead but it looks like it isn’t used). So during charge, cell 9 appears to have a higher voltage (because of the voltage rise due to the cable resistance) and it is mistakenly discharged by the bms. There is a parameter on the seplos bms to set this resistance and now it’s reporting the right voltage, but now I have to stick an active balancer to redo the top balance
8:58 6Nm is a little bit, in my opinion. You have to flatten the punching burr so that the pretensioning force is not lost... I tighten the nuts with about 10Nm.
Andy, do you able to check this active balancer when battery is on discharge mode? I've 280Ah lithium battery. I tried to fully discharge it (40V) for capacity testing, but it was failed. Because one of lithium cell (very bad one) discharge very fast to 2.5V and cell discharge difference will exceed to 0.5V, then battery stop. I want to know your opinion if I can use this NEEY active balancer for this scenario.
How can we understand, that several lower cells are bad? Because, for example, I always have 3 cells, that are lower than others on 0.035-0.008v in an hour after charging( or under the load diff increase to 0.050-0.100mv!) And no deviation at 3,5 and some time absorbsion.
Thank you for your videos! I have 3 Anern packs with PACE. What's your opinion what is a better option: just to add active balancers to them or replace PACE with JK?
Hello Andy! Did you have to rearrange BMS cables to be able to fit the Neey inside it's final location in the Jakiper? I have an Sok, which is almost identical to the Jakiper, and there are so many cables and connectors in that location that I'm concerned about squashing or damaging them when inserting the Neey.
Hi i have question i habe 72v 30amp sony vtc6 ebike battery pack my group cell 10 and cell 11 is acting strange cell 10 will charge faster then my whole pack and cell 11 always the lowest i got this issue since my old ant bms bad mofset i instal new bms so at end charge all cell group (20s) = 4.2v but cell 10 will be 4.25v and cell 11 4.17v
Will you be posting some setting recommendations for the neey that will work for not only this pack but also other packs like the seplos 135? I have the first and maybe the 4th generation neey
I have been following you from the beginning of off grid garage. I have been looking for a balancer for my pack and the smart balancer was what I was waiting on to come of age. I saw this video and 4th gen neey balancer. My question is when I downloaded the software it doesn't have the sleep function and I have not been able to find instructions for the balancer. Have I got the wrong app because it is different than yours. Keep up the excellent work and thanks for your help.
Aaah, later vid ... still to confirm: Two questions Andy, if I may? 1) I am in the market for a good balancer after adding 3 new cells to the 15 cell bank. Balancing them manually is a huge effort. Is the NEEY definitely the right buy to compliment the big model JBD BMS? 2) And your system settings on your website, are they up to date? Can you also post your inverter settings ... and the NEEY settings, if it is still the best balancer?
It's in the manual of the BMS maybe 80% into the document. Link is here on my website under the Seplos BMS: off-grid-garage.com/battery-management-systems-bms/
Basen technology have just brought out a 51.2v 300ah DIY kit. I’ve ordered 3 to try as they look great. Fingers crossed 😂! But take a look that look so much better than the seplos DIY kits
@@OffGridGarageAustralia Good point Andy. I guess there would not be much inside on the B+ line to burn up, and as long as if the B+ line melted, it didn't take something else with it, you are left with melted smoke and melted wire.
Hi Andy, my batteries balancer does not continue balancing after the OVP is reached, can you check on how to update the firmware? It would help me, as my supplier is non existent.
Yes, it is the same device. You just select Li-ion in the settings and it will work the same way. They can do 3s-24s. Link is here: off-grid-garage.com/battery-management-systems-bms/
@@OffGridGarageAustralia i just want the active balancing. I don't need the bms We are leeeeeeeeeaning on these batteries in a racing application .. the closer they are... the better i like it.. 200 Molicel p45s
@@ardenbriggs1190 They need balancing as well but it is totally different. With Li-ion, the voltage rises linear with the SOC and balancing can start very early. That's why most BMS have only very small balance currents as over time they will manage to balance a Li-ion pack even with only 100mA or less. This concept totally fails with LiFePO4 though due to the very shallow charge curve with a steep rise in voltage just at the end. And only at this point (3.45V or above), balancing can be effective and even possible.
The addition of the balancer seems to be a good modification. It's too bad these battery makers haven't noticed that their products are in need of improvement.
@@OffGridGarageAustralia 😮oooohhhhwwww! Who might this manufacturer be may I ask, with all your wonderful videos I'm looking at expanding my storage from 20kw to 40kw.
Can you please do another video of how to extend bms Bluetooth n connect to the phone. Also did u check the curve. I realised that the curve don't shoot up like ur batteries. I hv put the link in ur last video. Any how any help to extend the Bluetooth will b highly appreciated. Ohh need to connect for a non victron system 😊
@@OffGridGarageAustralia I was wondering if there was a BLE repeater. But all my search was not giving an answer. Only possibility was raspberry pi with solar assitant. It says I would be able to even change bms figure from it. But not sure will try n keep you informed.
Not ready made products needs to be modified before use.... ;-) Thats for shure the reason i would never feel good driving in a car made in china. Who knows what they forgot to think of while designing it..... Nice work Andy. Im looking forward to see Frankensteins Battery alive.
I noticed another "not(so) good" thing about this battery: balance leads and laying insede metal duct but they in contact with sharp edges when they are exiting this duct. metal edges are only painted and there is no plastic insert not protective PVC tubing over thin wires. They are also don't have cell-side fuses. Ideally there should be a PCB in the duct with short leads to the cells and fuses.. dunno...
@@OffGridGarageAustralia i really do like overall built quality of this battery but there are some small details there and there... I'm building industrial electrical equipment for a living and sometimes just by looking at equipment is rise red flag-like thoughts -"it is not up to code" xD
Hahaha, yeah, they are at my computer in the office inside the house and when I'm out there filming, I don't bother but sometimes it's just insane. I need to lower this screen somehow...
@@OffGridGarageAustralia so for having multiple batteries and wanting active load balancing the best at the moment is sephos BMS and Neely active load balancer? For a 16s lifepo battery?
Hello sir. I have searched all over and I can't seem to find an email address to contact you😢 I have 2 parallel strings of 16 qty 304ah lifepo4 cells. I have been using them a week or so parallel to some 4s 12v 300ah ampertime packaged batteries. They seem to be working well so far... The 51.2v 900ah lot has been connected to my inverters and cycling well with equal voltages. All strings have active balancing... With one limitation. Have you any experience with such arrangements? Thank you kindly for your testimony and tributes.
@@OffGridGarageAustraliaHello, thank you for your time and reply. The 12v batteries have a built in bms. I have asked the manufacturer and they say they each have internal passive balancing. I have a 4s 48 volt HA02 balancer made by zerone across the 4 batteries in parallel. I understand the 12v cells are made up of 4s2p 150ah cells.
@@AndSheAndI Ah, OK, so you have a balancer for these 4 12V batteries. That should be OK then to parallel all these batteries. Make sure you use a DC breaker for each string or some sort of protection.
Great content again👍 Did you ever think about connecting a fuse to each of the ring terminals to avoid burning the balancer cables in case of an shortcircuit?
Moin Andy, Kannst du mir vielleicht helfen und zwar möchte ich ein Neey Balancer nutzen aber ich habe ein iPhone und dafür finde ich keine App um ihn zu nutzen. Wenn du mir da ein tip geben könntest wäre ich dir echt dankbar. Gruß Paul aus Deutschland
I'm not a fan of the idea that the BMSs become unavailable after a low voltage. I get that it's protecting the battery, but not knowing what's happening isn't great.
I'll test this again. The BMS should stay on even it disconnects the battery. Unless they have wired something wrong. The BMS has it's own power cable for the current limiter...
I don't want you to change, like my love of bended lugs, but here it is anyway: "Without further ado means without much fuss or without further delay; you do it at once, right away."...
Start of what? The balancer? That won't work at 52.5V = 3.28V/cell is far to low and all cells will be still in the flat area of the curve. There is no difference in cell voltage at this point. You need to be over 3.4V at least to see the spread.
At this day and age where large prismatic cells are common, BMS makers should increase the balancing current to 100~500mA. Some argues that high current balancing is unnecessary IF the cells were fully top balanced before they were assembled. Counter Argument: Now really, did Jakiper top balanced the cells?
I personally don't think top balancing makes that much difference unless you have perfectly matched down to the milliamp and milliohm capacity and resistance cells, there will always be some drift over time
BMS designs should have default ~2A active balancer per 100A continuous rating. As a daughter board so it can be swapped for larger capacity. Real world may be less than the active balancer rating but it has to be more than the minimum amps it can detect. Otherwise you end up with it not on until charging 1A & this exceeds the useless
Cells will always drift. Especially after winter when you haven't fully charged your pack for 4 months. Some manufacturers of these pre-assembled batteries are now offering active balancers as an option. Even a NEEY... watch this space.
Always happy to see a new video!
yes always a joy to watch....
Even for at least Andy’s comedy 👌
Looks like another addition for my battery, once again very entertaining time for a spat Andy
Than you, yeah, just giving people some options with their own batteries.
a really CLEAN addition you did there Andy!... I would honestly think that came from factory like that if I opened it and saw that setup myself.
Oh, thank you very much. I try my best to deliver some good examples, to set the standard for everyone else 😊
Heya, it's nice that there are separat active balancers for all the BMS's that done have them
I just added Daly balancers to my 2 Eel (Seplos) batteries, thanks Andy for the video, makes me feel doing the right thing. Passive 150 mA balancing is too little for 280Ah cells.
The Daly balancer will work as well, just be mindful of the settings it needs. I think they are using average voltage or some kind of stuff. It's in a video I made a while back about the Daly active balancer.
Thanks Andy, great as always, BIG 👍👍
I'm having issues with my 2 first generation Jakiper batteries, where they now shut off at around 51.5 volts... I ordered a RS232 to USB cable that is supposed to work with this BMS to look into more detail what's going on in there. If the packs are out of balance, is there any way to get them even again without this "surgery" through the settings in the BMS? And I actually suspect the SOC part of the BMS is shutting the battery down, not going by voltage... is that conceivable?
You never changed any parameters in the Jaki battery and Pace BMS?
@@OffGridGarageAustralia No, I have not changed any settings in the BMS... I have the cable now and the software doesn't seem to even let me change any parameters... however, watching the logs from the software I can tell that one cell in each battery is behaving odd; discharging much quicker than the other cells and overcharging when the other cells are still in bulk mode... my guess is these cells are likely toast and will need to be replaced... one thing I could try is to take a good cell from battery 2 and replace the bad one in battery 1 and see if that battery behaves normally after this "surgery"... at least the cells are not welded, so I assume I could get replacements!?
Cool install. Clean and neat. Good job
Thank you. It took me a while to get it all done.
Since your battery is 16S, how have you used the 17S configuration? It's a bit confusing to me. Can you help?
I have not used any 17s configurations ever. Where have you seen it?
@@OffGridGarageAustralia Look at 5:32, the drawing says 17s and we can see 17 different cells on that drawing, B1 up to B17.
Thanks Andy
Thank you, Wayne!
15:40 After reaching the full absorbtion state and changing to float, my Victron MPPT´s decrease the Vbatt to 3,35V/Cell. So the Neeeey would stay on for ~50mV until the 3,3V is reached. So I think that should be okay. The Neeey would kick in in 50mV before Vmax and will stay on 50mV in float.
Yeah, it is still not optimal with the Gen1 NEEY but workable. Usually, I don't float but turn on some loads then, so voltage drops a bit anyway. I'm happy to just turn it on and off manually, when needed. I'm sure the Jaki can handle a bit of imbalance and smooth it out. The Seplos batteries worked fine just the internal balancer after a while.
@@OffGridGarageAustralia My setup is set with tail current. So I know, if the tail current is reached, the Battery is fully balanced. otherwise the tail current wont be that less. Then the MPPT´s shut of and my system is powered by the battery until it reaches the float voltage. Then the MPPT´s kick in to supply the load.
But my system isn´t that big as yours and my Battery won´t charge that often to 100%. So every 100% here and there I know, that the cells where fully top balanced. 200Ah/24V with 12326Ah (total purchased Ah) with only 35 cycles says the smart shunt.
YES! the NEEEEEEEEEEEEY!!! You just can't do without them, told you so.
It's the best!
Hi Andy, and Thanks again for this video! Definitely it is the good issue, for make a good balancing this type of pack Battery.. (Because the original balance from the BMS is really not efficient!)
No, the built-in balancer does not cut it.
Great video, just one question: apart from the "smart part" of this inverter is there any difference between the neey and the old balancer in terms of speed or anything else?
What do you mean by old balancer?
@@OffGridGarageAustralia Sorry, I meant 'the other', the Hankzor with 48 capacitors (@2:01)
@@GiocondoSticca The NEEY balances with 4A all the time, regardless the voltage difference. The capacitor balancer balancers slower, the lower the voltage difference is, but it can balance all cells at the same time, while the NEEY can do only one at a time.
Both a great.
I see a PV inverter and PV charger that I haven't seen before. It seems to imply that there are two new devices. I'm only aware of the new Fronius from the other building. Is that the Fronius as either the PV inverter, PV charger, or are both of them the same Fronius box? Did I miss a video?
crazy how far out these batteries can be. im using a drop in battery(amperetime) on one of my sites and i couldn't get it to 27.6v without overvolt shutdown. the bms is ass so i had to open the pack up and manually discharge the problem cell. now it'll get to 27.6 and i floated there so the bms would work. i normally do 27.6 adsorb and 26.8 float but i think this bms stops balancing at 27.5v. i may gut it and get a better bms
Yes, I hate these glued and sealed batteries with unbalanced batteries. At least if you have access to the BMS you can turn off charge balance and let them sit there for a while to allow the BMS to balance while slowly increasing the voltage.
Andeeeeyyyy Neeeeeeyyy Bombenfest! :D
Good morning from Holland
En hallo terug uit Down Under 👋
Andy, I want to buy Neey Active balancer. But how do I check its generation number? I checked that balancer in online stores, but they never mentioned about its any generation number
Sellers on Ali certainly mention generation 4. I bought one recently on one of their offer days 😊. Used it on my two batteries, worked a treat and now sitting in storage as the batteries are really behaving themselves 👍
The term Generation 4 is something we as a community invented but some sellers have taken over and use it so people know what they get. Always check with the seller before you buy that it is gen 4. If they don't know what that is, buy somewhere else. I have some links on my website:
off-grid-garage.com/battery-management-systems-bms/
hii sir. Thanks for the review. Next please review the new JK bms 25S they using split port with 2a/5a balancer. Thanksss🙂
I'm using seplos BMS. I think Jakiper Battery' BMS also having Passive balancer. Do we need to turn off passive balance feature, when we're going to use active balancer on it?
Nope, you can leave it on. You can have as many balancers connected to one battery as you like.
I have a problem. I'm building two 12 V batteries for my camper. Watching your video I decided to buy two neey active balancer 4th generation.
I want to balance 4 Cells but can't find a manual how to install.
I am not really used to this language so I maybe made a mistake.
Could I use this balancer for my project?
With a 12V battery you need to supply at least 28V to the NEEY B- and B+ connector to start it up.
This can be either an external power supply or a step-up buck converter which steps up 12V to ~30V. I have shown the setup here connecting the JK BMS to a 4s battery. It's the same principle though as you would use for the NEEY.
ua-cam.com/video/xdNEMl72z9s/v-deo.html
if the bms malfunctions and leads to a cell overcharging, could you connect another bms in parallel ? would that be a backup bms ?
No, there can be only one BMS handling the battery. The BSM should not shut down your battery unless something is wrong.
Interesting.. I'm just going through things with my new battery. Cells seen to be balanced good with the BMS. We'll see
Balanced or top balanced. Can you charge yours to 3.55V per cell or higher without getting an OVP?
I'm still waiting on the cable availability so i can connect the battery to the software. Will see
I’ve been running a seplos BMS with 230ah cells for over 2 years, the standard balancer has kept everything in check, though the pack was properly balanced to start with! Remember add more stuff to your batteries increases the risk of some piece of hardware going wrong and it killing your cells.
My Seplos bms managed to ruin the balance of my pack in just 4 months; I suspect cell number 9 was discharged because I have them on 2 shelves with one cable connecting cell 8 and 9; and the bms measures the voltage of cell 9 between 8+ and 9+ (I know it has a 9- lead but it looks like it isn’t used). So during charge, cell 9 appears to have a higher voltage (because of the voltage rise due to the cable resistance) and it is mistakenly discharged by the bms. There is a parameter on the seplos bms to set this resistance and now it’s reporting the right voltage, but now I have to stick an active balancer to redo the top balance
Neey BMS realy works good!
Andy, what start and stop balancing voltage do you recomend for this Smart Balancer if charging to 3,45 or 3,5v per cell?
Hope there's an active balancer install on the Seplos' too at some point.
8:58 6Nm is a little bit, in my opinion. You have to flatten the punching burr so that the pretensioning force is not lost...
I tighten the nuts with about 10Nm.
Andy, do you able to check this active balancer when battery is on discharge mode? I've 280Ah lithium battery. I tried to fully discharge it (40V) for capacity testing, but it was failed. Because one of lithium cell (very bad one) discharge very fast to 2.5V and cell discharge difference will exceed to 0.5V, then battery stop. I want to know your opinion if I can use this NEEY active balancer for this scenario.
What kind of battery do you have when 40V is fully charged?
If you have a bad cell, the balancer will not help with that.
How can we understand, that several lower cells are bad? Because, for example, I always have 3 cells, that are lower than others on 0.035-0.008v in an hour after charging( or under the load diff increase to 0.050-0.100mv!) And no deviation at 3,5 and some time absorbsion.
Thank you for your videos! I have 3 Anern packs with PACE. What's your opinion what is a better option: just to add active balancers to them or replace PACE with JK?
Hello Andy! Did you have to rearrange BMS cables to be able to fit the Neey inside it's final location in the Jakiper? I have an Sok, which is almost identical to the Jakiper, and there are so many cables and connectors in that location that I'm concerned about squashing or damaging them when inserting the Neey.
I have not rearranged any cables inside the battery box. In this space, there was nothing in the Jaki battery, just an empty space.
@@OffGridGarageAustralia Thanks for the info, Andy. Love you work and your videos.
Hi i have question i habe 72v 30amp sony vtc6 ebike battery pack my group cell 10 and cell 11 is acting strange cell 10 will charge faster then my whole pack and cell 11 always the lowest i got this issue since my old ant bms bad mofset i instal new bms so at end charge all cell group (20s) = 4.2v but cell 10 will be 4.25v and cell 11 4.17v
If you can open the battery, you can just connect an active balancer and it will be like new afterwards.
Will you be posting some setting recommendations for the neey that will work for not only this pack but also other packs like the seplos 135? I have the first and maybe the 4th generation neey
Can do, thanks for the reminder.
I have been following you from the beginning of off grid garage. I have been looking for a balancer for my pack and the smart balancer was what I was waiting on to come of age. I saw this video and 4th gen neey balancer. My question is when I downloaded the software it doesn't have the sleep function and I have not been able to find instructions for the balancer. Have I got the wrong app because it is different than yours. Keep up the excellent work and thanks for your help.
Aaah, later vid ... still to confirm:
Two questions Andy, if I may?
1) I am in the market for a good balancer after adding 3 new cells to the 15 cell bank. Balancing them manually is a huge effort. Is the NEEY definitely the right buy to compliment the big model JBD BMS?
2) And your system settings on your website, are they up to date? Can you also post your inverter settings ... and the NEEY settings, if it is still the best balancer?
Lovely cable tidying sir =Z=
Felt a little uneasy, but once I saw that you had tightened your nuts to 5nm, I really needed a spat. Greetings 😊
Yes, 8Nm was a bit too high. 5 is ok, 4 would also be doing the job...
Hi Andy can you tell me the pinout of the seplos BMS to the inverter using the rs485 thanks
It's in the manual of the BMS maybe 80% into the document.
Link is here on my website under the Seplos BMS: off-grid-garage.com/battery-management-systems-bms/
@@OffGridGarageAustralia thanks Andy
Basen technology have just brought out a 51.2v 300ah DIY kit. I’ve ordered 3 to try as they look great. Fingers crossed 😂! But take a look that look so much better than the seplos DIY kits
Better than the Seplos? I think the Seplos is already very good.
Well done! Another great Frakengarrage test report. Btw Andy, did you install an inline fuse on B+ of the NEEEEEY Balancer?
No, no fuses for the NEEEYY. What would be the purpose of a fuse in the B+ wire if it is still connected to all other cells?
@@OffGridGarageAustralia Good point Andy. I guess there would not be much inside on the B+ line to burn up, and as long as if the B+ line melted, it didn't take something else with it, you are left with melted smoke and melted wire.
Hi Andy, my batteries balancer does not continue balancing after the OVP is reached, can you check on how to update the firmware? It would help me, as my supplier is non existent.
what is happening with the Frankenstein project? Where is Episode 2?
coming... this will be a whole series. But there will be other videos coming as well in between... jeez, give this man some room to breath 😂
@@OffGridGarageAustralia good news, I was afraid the project was abandoned for some "sunny" reason.😄😄
I’m suddenly curious. How you would react, if you tested the results of throwing that big bit of metal on the terminals
That depends if it keeps bouncing around or stick to one of the terminals. If stuck, I would get the crowbar and get it off again. Or just run!
Hi Andy, why do you need unused cables? I just take them out. Good video as always.
I want Frankenstein battery content, pure Frankenstein thoughts and experiments.
There will be other videos in between, sorry. Maybe wait for a few weeks and binge watch them all at once...
can I get this for a 20s lithium ion? I like the bluetooth
Yes, it is the same device. You just select Li-ion in the settings and it will work the same way. They can do 3s-24s. Link is here: off-grid-garage.com/battery-management-systems-bms/
@@OffGridGarageAustralia i just want the active balancing. I don't need the bms We are leeeeeeeeeaning on these batteries in a racing application .. the closer they are... the better i like it.. 200 Molicel p45s
So battery equalization is not as big of a situation on lithium ion.. correct?
@@ardenbriggs1190 They need balancing as well but it is totally different. With Li-ion, the voltage rises linear with the SOC and balancing can start very early. That's why most BMS have only very small balance currents as over time they will manage to balance a Li-ion pack even with only 100mA or less.
This concept totally fails with LiFePO4 though due to the very shallow charge curve with a steep rise in voltage just at the end. And only at this point (3.45V or above), balancing can be effective and even possible.
A man rich in batteries....charged batteries. :)
The viet nam buoght very chip.1kw batery lithium buoght 1000usd full optiol solar and mppt and batery.
If you have both balancers set to 1 millivolt aren’t they going to get into a fight with each other?
Nope, they won't. You can have as many balancers connected as you like, they all work independently.
The addition of the balancer seems to be a good modification. It's too bad these battery makers haven't noticed that their products are in need of improvement.
Yeah, one manufacturer has actually woken up and now includes one in their pack...
@@OffGridGarageAustralia 😮oooohhhhwwww! Who might this manufacturer be may I ask, with all your wonderful videos I'm looking at expanding my storage from 20kw to 40kw.
Can you please do another video of how to extend bms Bluetooth n connect to the phone.
Also did u check the curve. I realised that the curve don't shoot up like ur batteries. I hv put the link in ur last video. Any how any help to extend the Bluetooth will b highly appreciated. Ohh need to connect for a non victron system 😊
How do you extend Bluetooth? With a repeater?
@@OffGridGarageAustralia I was wondering if there was a BLE repeater. But all my search was not giving an answer. Only possibility was raspberry pi with solar assitant. It says I would be able to even change bms figure from it. But not sure will try n keep you informed.
Good job bro
Very neat :)
Thank you.
Not ready made products needs to be modified before use.... ;-)
Thats for shure the reason i would never feel good driving in a car made in china. Who knows what they forgot to think of while designing it.....
Nice work Andy. Im looking forward to see Frankensteins Battery alive.
You know many things made in China are designed elsewhere, right?
Also DJI are a Chinese company and are don’t think anyone would question their ability to design a product!
@@edc1569 haha my old mavic pro is a glitchy pos
I noticed another "not(so) good" thing about this battery: balance leads and laying insede metal duct but they in contact with sharp edges when they are exiting this duct. metal edges are only painted and there is no plastic insert not protective PVC tubing over thin wires. They are also don't have cell-side fuses. Ideally there should be a PCB in the duct with short leads to the cells and fuses.. dunno...
It's a budget battery, but good observation! I agree.
@@OffGridGarageAustralia i really do like overall built quality of this battery but there are some small details there and there... I'm building industrial electrical equipment for a living and sometimes just by looking at equipment is rise red flag-like thoughts -"it is not up to code" xD
As an opticly challenged person, wear the blue ones. I wear readers only. The bifocals drove me nuts constantly tilting My head.
Hahaha, yeah, they are at my computer in the office inside the house and when I'm out there filming, I don't bother but sometimes it's just insane. I need to lower this screen somehow...
Its a pity that there isn't a BMS that also does active load balancing well.
Or am i overthinking having a BMS and an active load balancer?
That would be a great BMS. Only the JK-BMS does this at the moment but is not great with communicating in parallel environments.
@@OffGridGarageAustralia so for having multiple batteries and wanting active load balancing the best at the moment is sephos BMS and Neely active load balancer? For a 16s lifepo battery?
Hello sir. I have searched all over and I can't seem to find an email address to contact you😢
I have 2 parallel strings of 16 qty 304ah lifepo4 cells. I have been using them a week or so parallel to some 4s 12v 300ah ampertime packaged batteries. They seem to be working well so far... The 51.2v 900ah lot has been connected to my inverters and cycling well with equal voltages. All strings have active balancing... With one limitation.
Have you any experience with such arrangements?
Thank you kindly for your testimony and tributes.
How do your 4s 12V batteries balance each other?
@@OffGridGarageAustraliaHello, thank you for your time and reply. The 12v batteries have a built in bms. I have asked the manufacturer and they say they each have internal passive balancing. I have a 4s 48 volt HA02 balancer made by zerone across the 4 batteries in parallel. I understand the 12v cells are made up of 4s2p 150ah cells.
@@AndSheAndI Ah, OK, so you have a balancer for these 4 12V batteries. That should be OK then to parallel all these batteries. Make sure you use a DC breaker for each string or some sort of protection.
Great content again👍 Did you ever think about connecting a fuse to each of the ring terminals to avoid burning the balancer cables in case of an shortcircuit?
Steel box, not that much to worry about in my opinion.
@@edc1569 I would 3D print a box... all steel? WOW
👍👍
I live in dread of that beep. I get cold sweats when I hear a lorry reversing.
Ok una vez más,un trabajo pendiente en fabricantes de battery pack is the balanced off celds ok
Moin Andy,
Kannst du mir vielleicht helfen und zwar möchte ich ein Neey Balancer nutzen aber ich habe ein iPhone und dafür finde ich keine App um ihn zu nutzen.
Wenn du mir da ein tip geben könntest wäre ich dir echt dankbar.
Gruß Paul aus Deutschland
I find a rubber mat (car mat) with a cut out in it serve good for this job rather than those old rags!! lol
That's a great idea.
I'm not a fan of the idea that the BMSs become unavailable after a low voltage. I get that it's protecting the battery, but not knowing what's happening isn't great.
I'll test this again. The BMS should stay on even it disconnects the battery. Unless they have wired something wrong. The BMS has it's own power cable for the current limiter...
⚡️just add 🛠️and take📝you got this🤔
😎
I don't want you to change, like my love of bended lugs, but here it is anyway: "Without further ado means without much fuss or without further delay; you do it at once, right away."...
Ahemmm, it is without further to-do! Just to be correct here 😂
@@OffGridGarageAustralia don't change!
Neeeeeeeeeeeeeeeeeeeey
💪
Just got a LifePower4 battery and the passive balancers are a joke. Why why why...Give us active balancers with 2-10A capabilities!
✋🏿🧑🏿👍🏿 Eargesplitten Loudenboomer
🐸🐸🐸
neeeeymals aufgeben!
Hahaha, great!
55v is too high for a start, 52.5v is plenty.
Start of what? The balancer? That won't work at 52.5V = 3.28V/cell is far to low and all cells will be still in the flat area of the curve. There is no difference in cell voltage at this point. You need to be over 3.4V at least to see the spread.
nc is normaly closed =))
normally connected!
Like# 3!
At this day and age where large prismatic cells are common, BMS makers should increase the balancing current to 100~500mA.
Some argues that high current balancing is unnecessary IF the cells were fully top balanced before they were assembled. Counter Argument: Now really, did Jakiper top balanced the cells?
I personally don't think top balancing makes that much difference unless you have perfectly matched down to the milliamp and milliohm capacity and resistance cells, there will always be some drift over time
BMS designs should have default ~2A active balancer per 100A continuous rating. As a daughter board so it can be swapped for larger capacity. Real world may be less than the active balancer rating but it has to be more than the minimum amps it can detect. Otherwise you end up with it not on until charging 1A & this exceeds the useless
Cells will always drift. Especially after winter when you haven't fully charged your pack for 4 months.
Some manufacturers of these pre-assembled batteries are now offering active balancers as an option. Even a NEEY... watch this space.
A car is a great way to expend all the precious power, what a power hog!
The car takes it all! It's a far better load than using heat guns or electric heaters. And I can control it in 300W steps. Ideal.
Why so many people don't like active balancers?