Make these PCB battery boards Smart by integrating ESP32 boards that automatically connect to the Home Assistant app. From the battery PCB board would run a connector with a wire to connect to the JK-BMS. In this way, your Smart battery PCBs would allow even a beginner to monitor and setting BMS batteries in Home Assitnt from anywhere in the world where in the internet.
You want a full BMS, it does balancing, temp monitoring so you don't charge them at freezing temps, shuts down if too hot, watches current in/out, allows disabling charging, output, monitors power in/out to give accurate state of charge etc. I'm partial to JK BMS with 2A balancing current.
Why haven’t some of the battery companies come up with something similar in their commercial products? These seem to make things easier, compact and neater.
Another question to ask yourself is why some of the bigger "sponsored" websites on the internet do things to shadow block his posts that are essentially community based open source builds. No other company does what he does - we all know why - $$$.
Because they don't have to. Bacon simply pay someone to produce bus Bars by the thousands and they have the industrial spot welders which is why a lot of packs come spot welded
You can buy temperature triggered internal heaters for batteries now, that will automatically keep the battery warm. They also will prevent charging at low temps, which can be catastrophic for your cells.
So, don't put my S24Ultra in the freezer when it's overheating, and try to charge it (sarcasm). My battery went to 0 quickly after taking it out of the freezer. It was only in it for 20 minutes while going to a Quik Video Export 4k 120fps high bitrates. Yeah, it never finishes if the video is too long. The phone or App doesn't like making 50GB files, I guess.
Very soon The #24v version of the #PCB busbar for the #EVE #CATL #Rept #LF280k #LF304 #EB30 and #EB31 #LifePO4 cells is here!!! jag35.com/products/24v-pcb-busbar-for-lifepo4-cell-for-280ah-304ah-314ah-eve-catl-rept-trina
Awesome job as usual. Will you share the pcbway plans for the 8s and 16s as well or only the 4s? Maybe create a 16s server rack case as well, just an idea.
Definitely use the JK BMS for 12V, 24V and 48V - black BMS and the 24V-48V JK Inverter BMS which already has inverter communication, two programmable relays and current protection for parallel connection of multiple batteries. These JK BMSs have Active Balancer integrated inside, which is needed for such large cells, passive balancer is weak. How big balancing currents can this pcb from the video handle? Would be possible to add fuse holders for the all balance wires close to the cell terminals to the pcb as well?
Because nobody makes a bms that's able to handle the amount of power that a car audio Amp will draw from. This was built for car audio pulling 400+ amps so no bms will support that kind of current.
Please make a board with connectors for a JK-BMS V3 48v . They have great features like a balancer, and you can configure the bulk-absorb-float behaviour. Also the app is good with the bluetooth. And the JK works with Victron and a lot of other inverter brands. Great video.
JK 4s-8s2A200A BMS are popular. They do need a kick up the ass regarding the firmware needing to be open sourced or open to customer feedback on features installed, as they are lacking functionality for users of multiple packs in a power bank.
for 48 volt, please use two different 24 volt. I have mine laid out 8 cells, long edgs together, with an identical layout next to them. I use the jiabaida brand BMS units with good luck and good support.
Busbar rubber not allowing flatness to PCB potential for cracking or bad connection? Maybe a washer between PCB and busbar to allow nut to be fastened evenly. Just a thought.
Amazing timing releasing this, i just got these batteries from china. Does it come with the scew terminals for the bms? How are you going to do the compression plates? I got an overkill solar BMS hopefully i can get this to work with it.
I'd happily have four x 12v connector PCB's IF there was a way to connect them correctly to a BMS unit. It's also a better aspect ratio package for international shipping of a singe huge flat PCB. A major issue is than few people have a good place to put a 16s battery in a straight line, I'd have problems. However many people could put a 16s battery as two rows of cells.
Please explain. There is a negative and a positive, is the case a third polarity? I always thought the case was neutral or negative. Where would I get those fiber spacers if my batteries didn't come with them?
Before these spacers were available, I just used an inexpensive roll of shelving contact paper (I precut it), it is sticky and just run it down one side, around the bottom and back up the other side. Done.
Nice work!! Question.. I have a Eaton UPS (5S 1500) which uses a small 12V lead acid battery which gets charged by the UPS. Since there is no possibility to add extra batteries, I was wondering if I could remove the lead acid battery and connect it to this 12V LifePO4, and if yes, how would you connect it? Since the UPS charges the internal battery, I don't know if it could charge such a large battery and if it would be compatible with your BMS? Thanks!
Many small UPS are a poor waveform (basically square wave not the more desirable sine wave) Also small UPS usually only have a small charging circuit intended to recharge in say 4 hours BUT if you increase the battery size by ten times it could take ten times as long to recharge unless you add wind or solar or...
Yes it’s capable of 300A continuous and probably 500A bursts. You would get a real long play time with one of these. Like hours of playtime without depleting the pack.
Would love to get some 48v pcb's. I have heard apparent experts argue that there are pros and cons for compressing these cells and that generally there is no real point in doing so, do you mind sharing your oppinion on the topic?
I don’t have an opinion. I have very little experience with these particular cells, but we didn’t use compression 10 years ago when we used them in diy ev and they did fine for years laying on their side.
You can build this yourself at PCBWay…they just require you to buy several so Jehu resells them individually for a profit. You and 9 friends could do a group buy today though…
@JEHUGARCIA hello there. i have been following ur channel for a long time, im from mexico, and i have some info that migth b usefull to u to set a buisness. i dont know if another countrys happens the next thing. at least in mexico the power company has been installing new digital meters. for electric consumption. but they dont messure the real energy consumption of energy. what they do is that they messure the average peaks of energy that freezers and air conditioners and water pumps generate.. so the idea is the next. is there a way to make a batery bank that supplys the energy to the house/buisnnes and recharge slowly to diminish the peaks of requiere energy and place it bettwen the energy metter and the "in house grid" ?
Just do it! I've been watching for years.. you've done a great thing in the community
Make these PCB battery boards Smart by integrating ESP32 boards that automatically connect to the Home Assistant app.
From the battery PCB board would run a connector with a wire to connect to the JK-BMS.
In this way, your Smart battery PCBs would allow even a beginner to monitor and setting BMS batteries in Home Assitnt from anywhere in the world where in the internet.
Want to collab on a tech project? network engineer background, love car audio, fast internet, and power anywhere.
You want a full BMS, it does balancing, temp monitoring so you don't charge them at freezing temps, shuts down if too hot, watches current in/out, allows disabling charging, output, monitors power in/out to give accurate state of charge etc. I'm partial to JK BMS with 2A balancing current.
Garcia, simply put, you are a genius .
I'm interested in the 48 volt version.
Definitely interested in a fat 24v!
Open sourcing the designs of the steel cabinets would be helpful for those of us in Europe. 8s and 16s rack mounts
I'm down for 48v
Awesome!!! Would love to be able to do 2x8 for 16s.
I could wait for that 48V😊
coming up
@@jehugarcia *eso es todo* 👍
Why haven’t some of the battery companies come up with something similar in their commercial products? These seem to make things easier, compact and neater.
Another question to ask yourself is why some of the bigger "sponsored" websites on the internet do things to shadow block his posts that are essentially community based open source builds. No other company does what he does - we all know why - $$$.
Because they don't have to. Bacon simply pay someone to produce bus Bars by the thousands and they have the industrial spot welders which is why a lot of packs come spot welded
JK-BMS attachment please
In my part of Canada, I don't think I can replace my lead acid with LiFePO4; my car lives at -30C or less in winter. 🤣
You can buy temperature triggered internal heaters for batteries now, that will automatically keep the battery warm. They also will prevent charging at low temps, which can be catastrophic for your cells.
So, don't put my S24Ultra in the freezer when it's overheating, and try to charge it (sarcasm). My battery went to 0 quickly after taking it out of the freezer. It was only in it for 20 minutes while going to a Quik Video Export 4k 120fps high bitrates. Yeah, it never finishes if the video is too long. The phone or App doesn't like making 50GB files, I guess.
oh, 200amp please
Heck yeah man! I remember talking to you about this a few months ago. Any plans for a 48v version?
I'm interested in the 48v. How long will it be until you are ready to sell those setups? Great video!
Very soon The #24v version of the #PCB busbar for the #EVE #CATL #Rept #LF280k #LF304 #EB30 and #EB31 #LifePO4 cells is here!!! jag35.com/products/24v-pcb-busbar-for-lifepo4-cell-for-280ah-304ah-314ah-eve-catl-rept-trina
A BMS also should protect from over volt charge/over current charge /over/under temp charge.. So its not quit that easy..
JK B2A8S20P 200A 12V and 24V Bluetooth BMS with 2A active balancer built-in for LiFePO4 Battery. This is the best BMS available.
4-8s jk bms
48v and and a on board BMS, ill by them.
Awesome job as usual. Will you share the pcbway plans for the 8s and 16s as well or only the 4s? Maybe create a 16s server rack case as well, just an idea.
Yes all coming
Definitely use the JK BMS for 12V, 24V and 48V - black BMS and the 24V-48V JK Inverter BMS which already has inverter communication, two programmable relays and current protection for parallel connection of multiple batteries.
These JK BMSs have Active Balancer integrated inside, which is needed for such large cells, passive balancer is weak.
How big balancing currents can this pcb from the video handle?
Would be possible to add fuse holders for the all balance wires close to the cell terminals to the pcb as well?
Because nobody makes a bms that's able to handle the amount of power that a car audio Amp will draw from. This was built for car audio pulling 400+ amps so no bms will support that kind of current.
Please make a board with connectors for a JK-BMS V3 48v . They have great features like a balancer, and you can configure the bulk-absorb-float behaviour. Also the app is good with the bluetooth. And the JK works with Victron and a lot of other inverter brands. Great video.
i use overkill solar bms on my systems but there 48v, like the boards there great idea.
JK 4s-8s2A200A BMS are popular. They do need a kick up the ass regarding the firmware needing to be open sourced or open to customer feedback on features installed, as they are lacking functionality for users of multiple packs in a power bank.
*Que Chulada Jehu* me quito el sombrero 👍
for 48 volt, please use two different 24 volt. I have mine laid out 8 cells, long edgs together, with an identical layout next to them. I use the jiabaida brand BMS units with good luck and good support.
48v complete as compared cost wise to a server rack battery which is 48v - 100a for about 1250 ish. thx.
Busbar rubber not allowing flatness to PCB potential for cracking or bad connection? Maybe a washer between PCB and busbar to allow nut to be fastened evenly. Just a thought.
Aren't the busbars with rubber in the middle flexible? Still learning before my first build so I could be wrong.
@@vladimus9749 I believe the ones with bends in the middle, not the flats. Would warrant verifying in hand.
Amazing timing releasing this, i just got these batteries from china. Does it come with the scew terminals for the bms? How are you going to do the compression plates? I got an overkill solar BMS hopefully i can get this to work with it.
I'd happily have four x 12v connector PCB's IF there was a way to connect them correctly to a BMS unit. It's also a better aspect ratio package for international shipping of a singe huge flat PCB.
A major issue is than few people have a good place to put a 16s battery in a straight line, I'd have problems. However many people could put a 16s battery as two rows of cells.
Have a place for the temp sensor, and fuses
Temp sensor has to be on cells
Please explain. There is a negative and a positive, is the case a third polarity? I always thought the case was neutral or negative. Where would I get those fiber spacers if my batteries didn't come with them?
Before these spacers were available, I just used an inexpensive roll of shelving contact paper (I precut it), it is sticky and just run it down one side, around the bottom and back up the other side. Done.
Especially prismatic cells will expand during operation...a fixed connection between them with a PCB is a terrible idea...
One of my cells swelled can I just buy 1 it's a 280 Ah also what's the price in compresson setup ?
Nice work!! Question.. I have a Eaton UPS (5S 1500) which uses a small 12V lead acid battery which gets charged by the UPS. Since there is no possibility to add extra batteries, I was wondering if I could remove the lead acid battery and connect it to this 12V LifePO4, and if yes, how would you connect it? Since the UPS charges the internal battery, I don't know if it could charge such a large battery and if it would be compatible with your BMS? Thanks!
Yeah I don’t see why you couldn’t use one of there batteries. It should just work
@@jehugarcia Is there a reseller of your products in Canada?
No but I can now sell you cells shipped from china directly to Canada
Forget this question... I just saw you ship to Canada :)
Many small UPS are a poor waveform (basically square wave not the more desirable sine wave) Also small UPS usually only have a small charging circuit intended to recharge in say 4 hours BUT if you increase the battery size by ten times it could take ten times as long to recharge unless you add wind or solar or...
Have you got the compression plates yet
Yes they are at jag35.com
What is anyone's thoughts about putting the board on top of the bus bars instead and then the nuts on top of the PCB??
Yeah that’s how we used to build the LEV60 battery packs, no problem doing that at all
A question this 🔋 battery can also be used for music system
Can be used for anything
@@jehugarcia 👍
Do you offer batteries for Toyota hybrid Gen3 prius?
How about a 12v 560ah or 600ah battery
would like a 48 pack that can take 5 Kv motor 600A Controller and I have SLA with 170 Ah "6x8v"
i know this is noob question(and yes i am a noob) lol.can i sue this type os battery with that bussbar for car audio purposes?
Yes it’s capable of 300A continuous and probably 500A bursts. You would get a real long play time with one of these. Like hours of playtime without depleting the pack.
@@jehugarcia nice, thank you for your input
Would love to get some 48v pcb's. I have heard apparent experts argue that there are pros and cons for compressing these cells and that generally there is no real point in doing so, do you mind sharing your oppinion on the topic?
I don’t have an opinion. I have very little experience with these particular cells, but we didn’t use compression 10 years ago when we used them in diy ev and they did fine for years laying on their side.
@@jehugarcia…”laying on their side”…another type of compression no? (Bottom of the stack is REALLY compressed!)
We need 16s of this possible 16s2p. Then you’re serious about this
JK BMS!!
Why don't you just say what the costs are for the different voltages?
You can build this yourself at PCBWay…they just require you to buy several so Jehu resells them individually for a profit. You and 9 friends could do a group buy today though…
As per it's importance rate of PCB is very high.
The point of adding bus bars is lamez just make the ones in the PCB big enough. Adding bus bars defeats the whole purpose
@JEHUGARCIA hello there. i have been following ur channel for a long time, im from mexico, and i have some info that migth b usefull to u to set a buisness. i dont know if another countrys happens the next thing. at least in mexico the power company has been installing new digital meters. for electric consumption. but they dont messure the real energy consumption of energy. what they do is that they messure the average peaks of energy that freezers and air conditioners and water pumps generate.. so the idea is the next. is there a way to make a batery bank that supplys the energy to the house/buisnnes and recharge slowly to diminish the peaks of requiere energy and place it bettwen the energy metter and the "in house grid" ?
any alibaba battery suppliers selling what they advertise?
I'm interested in the 24 volt version.