Не могли бы вы уточнить у меня аккумулятор Greenworks commerciall 82 volt 5,0 Ah GB82B5. Я снимаю крышку корпуса а сам блок с аккумуляторами не вытаскивается и непонятно как его вытащить чтоб хотя бы проверить балансировку так как с ним проблема. Может есть какой то нюанс или хитрость? Не могу решить это уже долгое время.
You are speaking about battery pack capacity, which is in Ah (Ampere-hours) and battery pack Energy, which is in Wh (Watt-hours). You get Wh by multiplying battery pack Capacity and Battery pack output Voltage. BTW, I like the plastic part, you have made to connect Greenworks battery to "outside world". ;)
Does the BMS regulate the discharge? I know on the Ego batteries they don't. I ckeck out my channel I use them to run electric mountain boards. 20p would be fun to play with
Do you know about these batteries bms are they separate charge port charging. I thought I read 4 pins are B-, Comm, Charge +, and B+. I have a battery that the charger blinks red but cells are perfect and I can charge without bms to 84v no problem. I can also discharge using + and minus no problem. Seems the bms might have died. I check the 2 mosfets in circuit on the output side and them seem good. I didnt really get into the balance side. ANY IDEAS? Thanks in advance
do you know what the BMS configuration is for GW 60v batteries? Ive got a blown board and am looking at trying to use an aftermarket solution to use it as we can't get replacement boards here. eg is it 20S etc....
@@JerryMinne sorry, typo on my part. 80v. I assume thats 20S? Have you managed to work out what size the fusible link is on one of the daughter boards? Its a solid metal strap soldered to the board - looks like the letter "H" from the top.
great stuff, thanks for sharing. question, i have some of these batteries where it looks like all of the cells are good but the little battery indicator/BMS board on them is bad. Is there any way to replace that? Any suggestions on where to find the right board?
@@JerryMinne ok thanks. Yeah that was what I was afraid of. I was hoping if I could find some battery that was dead or had bad cells I could swap the circuit boards from one to the other
If you don't have a DC power supply -or are too cheap to buy one,- would opening up the case, finding the lower voltage cells, and charging them up a little with a household battery charger essentially do the same thing?
Hello jerry with your adaptor do the battery last along time say if i got a 4.0 can i run it consistently with my 72v mxus 3000w with out burning the board inside the battery
The battery will probably shut down from getting too hot if you push it past it's capability. I run my 80v 4ah Greenworks on my ebike and it's good for about 1500watt peaks. It can do more, but the voltage sag becomes substantial. That's about 20amps, or 5c rate. (5x4=20). For longevity, best to keep it under 10amps.
Can you tell us the difference between the Snapper and Kobalt and Greenworks? The case tabs are different, and the Snapper has 4 led lights vs 3 led for the others. Is the BMS different? Charge balancing circuit?
I've seen a couple of these videos with tear downs, but I am wondering if a person can actually replace a dead battery cell into one of these without to much of a problem. I have a lot of Kobalt tools with 7-9 batteries. Some are now over 5 years old.. Your thoughts please... I'm wondering if it would be worth the pain repairing vs. the pain of spending $300 for a 6 amp battery..
Well, DIY is not about money but an accomplishment. Of course you can replace cells in the battery, but it not easy. Once you done that's a big accomplishment and you will proud of yourself so much.
I got a used 80 Volt Greenworks Battery (2A) and replaced the Cells. If I want charge it now the charger blinks red. Do you have any idea what this exactly means and how I could try to solve this? Thanks for your patience !
Thanks for the teardown! I'm building a custom charger for the greenworks batteries, and noticed battery has a dedicated charge pin. Should I charge using the charge pin or just the positive-pin?
One cannot charge that way, I've tried it doesn't work, you'll just get a dropping voltage signal. Like Jerry says, you need to be able to communicate with the on board bms to charge thru it. There are 4 pins, from the left Negative P-, Com, Charge+ , and Positive P+ . I find without knowing how to communicate with the board u can only bulk charge through the main discharge pins, but of course there no cell balancing that way. I have quite a few of these 80v 2Ah (Samsung 20R M based) and 2.5Ah (LG HE4 based) packs that I want to use to parallel up and power things like HP ebikes with because of the 20a+ rated cells, but cannot find a way to bring the on board BMS into play. Next step might have to be a greenworks or kobalt 80v charger teardown to suss out the chargers com protocol. Interestingly enough when I do bulk charge them on 20s charger setting (84v) the CC/CV charge seems to stop just after 82v (tried 3 so far and same result.) There does seem to be 2 sense cables from back (bms side) to front (discharge side) so perhaps the BMS dies have some interplay functionality even when bulk charging? I know some are labeled 80v and some 82v (even though all LiIon 20s have 84v as max charge.) It may be for pack longevity reasons? It's known that lowering charge voltage termination point from 4.2/cell to 4v or 4.1v greatly increases cycle the life.
Beautiful video, So, assuming that the value (C rate discharge) of a single 18650 cell is 2C, and I have a battery with 40Ah capacity, If I do 2 X 40 = 80A (maximum current could be supported by the battery) it is correct? And if I put two 40Ah batteries in parallel, their discharge rate is added so I will have (2 x 40 = 80A) x2 = 160 A MAX. Am I right ? Thank you so much for your reply and sorry for the trouble! BTW love your videos*-*
What size fuse is in the 2AH 80v (2901302) greenworks? I blew the fuse but I can't find any info about what size the fuse is? I just want to solder a new one on.
great video, thanks - I have oportunity to buy 80V greenworks lawnmower for 1/4 price but without battery, as i see 20 cells are 72V max 84V so 20S charger for ebike should be good
I wanted to use an inverter to a 110v AC if I use your adapter, what do you think is the maximum wattage I can use using the greenworks 80 volt 4.0 AH or with 2.0 AH battery?
@@JerryMinne thank you so much for the reply I really appreciate it I've been searching online for an inverter to use, most of them are 12 or 24 volt input. can you recommend an inverter I can use for an input of 80 volts DC. I want to make it portable.
@@JerryMinne I would be more interested in this one Greenworks Kobalt 80v, EGO 56V to 12v + 5v USB Power Station but only if it was solar charge capable.
Greenworks has integrated Smart BMS (Smart Battery Management System). You don't need to think about balancing the cells inside the batteray pack. The built in electronics will take care of that.
@@elkoss36 I think he means if external or bulk charging not with the dedicated charger the battery came with but they the main pos and neg terminals. In that case it's not charging thru the smart BMS. The middle 2 pins are Com and Charge+ to be able to charge thru the BMS but it seems to have a communication protocol that I've not yet figured out. But any help is appreciated. Otherwise the board has4. JST balance plugs that I'm guessing could be hooked up to say a balance board on a 10s balance charger, but I've not attempted that yet.
Hi, thanks for your videos, what are the other two terminals? I have a cramer 82v (interchangable with greenworks 82v) there are four terminals, +, _, Ω (ohm) and C, on my strimmer the C is not used but the other three terminals are. I'd like to use these batteries for other projects but wouldn't want to fry it!
Holy sounds a little complicated but I guess it can be done. Great vid @UCekrpNk_DJ8sPWFmiMeNloA I have the EMMO GT80 scooter with 80V/20Ah Lead Acid battery. I want to build whichever is the best and Economical way to add up to 80V, can this be done? 80V/20Ah (LiFePO4) battery or 2 x 40V(LiFePO4) battery =80V or 4 x 20V(LiFePO4) battery =80V Thanks
@@JerryMinne Hi Jerry, I pulled apart my battery. The cells are marked UR18650RX which corresponds to Panasonic/Sanyo 18650 cells with a 20A max discharge. You can find the datasheet here: datasheetspdf.com/pdf-file/831728/PanasonicBattery/UR18650RX/1 There are 20 cells per module and they are all spot welded to what looks like nickel interconnects.
I have torn apart and rebuilt MANY of these batteries. The 2.0Ah batteries either have Sanyo UR18650RX or Samsung INR18650-20R cells. The 2.5 Ah battery contains Samsung INR18650-25R cells.
Не могли бы вы уточнить у меня аккумулятор Greenworks commerciall 82 volt 5,0 Ah GB82B5. Я снимаю крышку корпуса а сам блок с аккумуляторами не вытаскивается и непонятно как его вытащить чтоб хотя бы проверить балансировку так как с ним проблема. Может есть какой то нюанс или хитрость? Не могу решить это уже долгое время.
You are speaking about battery pack capacity, which is in Ah (Ampere-hours) and battery pack Energy, which is in Wh (Watt-hours). You get Wh by multiplying battery pack Capacity and Battery pack output Voltage. BTW, I like the plastic part, you have made to connect Greenworks battery to "outside world". ;)
Does the BMS regulate the discharge? I know on the Ego batteries they don't. I ckeck out my channel I use them to run electric mountain boards. 20p would be fun to play with
what cells (brand/model) are in the 80v 5ah ?
Any idea which kind of cells do they use in kobalt 80v, either sanyo, sony or samsung, and how much cell do we get in kobalt 80v 4ah battery pack?
There are 20 cells in kobalt 80v battery.
Lithium ion 18650
Do you know about these batteries bms are they separate charge port charging.
I thought I read 4 pins are B-, Comm, Charge +, and B+. I have a battery that the charger blinks red but cells are perfect and I can charge without bms to 84v no problem. I can also discharge using + and minus no problem. Seems the bms might have died. I check the 2 mosfets in circuit on the output side and them seem good. I didnt really get into the balance side. ANY IDEAS? Thanks in advance
What bit did you use to get screws off?
I have a greenworks 60v 5amp battery that only charges to two bars instead of four. I hear a rattle inside.
Toques T15 safety
do you know what the BMS configuration is for GW 60v batteries? Ive got a blown board and am looking at trying to use an aftermarket solution to use it as we can't get replacement boards here. eg is it 20S etc....
60v should be 15s.
@@JerryMinne sorry, typo on my part. 80v. I assume thats 20S? Have you managed to work out what size the fusible link is on one of the daughter boards? Its a solid metal strap soldered to the board - looks like the letter "H" from the top.
Never knew my next battery upgrade could also get me flying haha wow.
great stuff, thanks for sharing. question, i have some of these batteries where it looks like all of the cells are good but the little battery indicator/BMS board on them is bad. Is there any way to replace that? Any suggestions on where to find the right board?
You can replace it with any 72v BMS board but it won't be able charge with original charger.
@@JerryMinne ok thanks. Yeah that was what I was afraid of. I was hoping if I could find some battery that was dead or had bad cells I could swap the circuit boards from one to the other
How can the 80V battery be charged without the factory charger ? Thanks !
If you don't have a DC power supply -or are too cheap to buy one,- would opening up the case, finding the lower voltage cells, and charging them up a little with a household battery charger essentially do the same thing?
That's what I did!
Helpful information, thank you
Hello jerry with your adaptor do the battery last along time say if i got a 4.0 can i run it consistently with my 72v mxus 3000w with out burning the board inside the battery
there's nothing to burn inside, the battery is self regulate, maximum amp is about 40a. so you can't go over it.
The battery will probably shut down from getting too hot if you push it past it's capability. I run my 80v 4ah Greenworks on my ebike and it's good for about 1500watt peaks. It can do more, but the voltage sag becomes substantial. That's about 20amps, or 5c rate. (5x4=20). For longevity, best to keep it under 10amps.
Can you tell us the difference between the Snapper and Kobalt and Greenworks?
The case tabs are different, and the Snapper has 4 led lights vs 3 led for the others.
Is the BMS different?
Charge balancing circuit?
Inside all same, only a little difference on case.
Jerry Minne·US
I have a Snapper battery. 4 LED status.
The Greenworks has 3 LED status.
So maybe the BMS is different?
I've seen a couple of these videos with tear downs, but I am wondering if a person can actually replace a dead battery cell into one of these without to much of a problem. I have a lot of Kobalt tools with 7-9 batteries. Some are now over 5 years old.. Your thoughts please... I'm wondering if it would be worth the pain repairing vs. the pain of spending $300 for a 6 amp battery..
Well, DIY is not about money but an accomplishment. Of course you can replace cells in the battery, but it not easy. Once you done that's a big accomplishment and you will proud of yourself so much.
do you still have any of these small adapters available for the 80V batteries?
Yes, order here:
minne.us/shop/80vebike/
I got a used 80 Volt Greenworks Battery (2A) and replaced the Cells. If I want charge it now the charger blinks red. Do you have any idea what this exactly means and how I could try to solve this? Thanks for your patience !
The circurt board in the battery probably bad
@@JerryMinne Thank you Jerry
Thanks for the teardown! I'm building a custom charger for the greenworks batteries, and noticed battery has a dedicated charge pin. Should I charge using the charge pin or just the positive-pin?
If you can communicate with BMS board in the battery then use charging port.
One cannot charge that way, I've tried it doesn't work, you'll just get a dropping voltage signal. Like Jerry says, you need to be able to communicate with the on board bms to charge thru it. There are 4 pins, from the left Negative P-, Com, Charge+ , and Positive P+ . I find without knowing how to communicate with the board u can only bulk charge through the main discharge pins, but of course there no cell balancing that way. I have quite a few of these 80v 2Ah (Samsung 20R M based) and 2.5Ah (LG HE4 based) packs that I want to use to parallel up and power things like HP ebikes with because of the 20a+ rated cells, but cannot find a way to bring the on board BMS into play. Next step might have to be a greenworks or kobalt 80v charger teardown to suss out the chargers com protocol. Interestingly enough when I do bulk charge them on 20s charger setting (84v) the CC/CV charge seems to stop just after 82v (tried 3 so far and same result.) There does seem to be 2 sense cables from back (bms side) to front (discharge side) so perhaps the BMS dies have some interplay functionality even when bulk charging? I know some are labeled 80v and some 82v (even though all LiIon 20s have 84v as max charge.) It may be for pack longevity reasons? It's known that lowering charge voltage termination point from 4.2/cell to 4v or 4.1v greatly increases cycle the life.
Beautiful video, So, assuming that the value (C rate discharge) of a single 18650 cell is 2C, and I have a battery with 40Ah capacity,
If I do 2 X 40 = 80A (maximum current could be supported by the battery) it is correct?
And if I put two 40Ah batteries in parallel, their discharge rate is added so I will have (2 x 40 = 80A) x2 = 160 A MAX.
Am I right ?
Thank you so much for your reply and sorry for the trouble! BTW love your videos*-*
Yes. That is right. Enjoy your DIY project.
@@JerryMinne Thank you, I love you ! :D
What size fuse is in the 2AH 80v (2901302) greenworks? I blew the fuse but I can't find any info about what size the fuse is? I just want to solder a new one on.
30a
@@JerryMinne thank you!
great video, thanks - I have oportunity to buy 80V greenworks lawnmower for 1/4 price but without battery, as i see 20 cells are 72V max 84V so 20S charger for ebike should be good
I wanted to use an inverter to a 110v AC if I use your adapter, what do you think is the maximum wattage I can use using the greenworks 80 volt 4.0 AH or with 2.0 AH battery?
2ah battery can easily go over 1000w, 4ah will double it.
@@JerryMinne thank you so much for the reply I really appreciate it I've been searching online for an inverter to use, most of them are 12 or 24 volt input. can you recommend an inverter I can use for an input of 80 volts DC.
I want to make it portable.
Search for solar power inverter. You may find something.
These companies love misleading customers with volts/amps and general capacities that have nothing to do with actual usage.
I am interested in max Watt output to have an idea of what is max power the tool motor can access.
2ah battery 1500w max, 4ah battery 3000w max output
@@JerryMinne So if you used say three 2AH 80V batteries in parallel, it should have no problem with a 3000 watt 72V e-bike kit? Thank you.
Yes. But you can see 2ah 80v battery has many empty spaces inside. 4ah is more compact.
Could you use the adapter to charge with a 12 v solar panel?
There's solar charger ready power station :
ua-cam.com/video/isDpTEBsP6c/v-deo.html
@@JerryMinne I would be more interested in this one Greenworks Kobalt 80v, EGO 56V to 12v + 5v USB Power Station but only if it was solar charge capable.
Maybe I missed it, but how many cells are there in the 5 ah Greenworks battery?
40 cells
@@JerryMinne So it's a 20S2P, is that correct?
@@BobPaul yes
What do I enter as my series cell count if I have 80v greenworks 2 ah battery?
20 cells inside.
@@JerryMinne Your mount that I bought for my ebike works great!
What's the different between the Greenworks's 82V and 80v battery？
No difference, just marketing strategy.
@@JerryMinne Thanks. I want To buy the 80v tiller and 82V chainsaw gs181. So, if the battery is campatible,I won't buy two chargers.
they will have different slots, they won't fit on each other. I talked about that in this video:
ua-cam.com/video/IcY3PfW44fU/v-deo.html
Dude is this battery realy worth 100 uk pounds
How would you make a balance port so you can charge each bank of cells at the 4.2 volts each cell.
I see balancing leads and a PCB, looks like there's already one built in
Greenworks has integrated Smart BMS (Smart Battery Management System). You don't need to think about balancing the cells inside the batteray pack. The built in electronics will take care of that.
@@elkoss36 I think he means if external or bulk charging not with the dedicated charger the battery came with but they the main pos and neg terminals. In that case it's not charging thru the smart BMS. The middle 2 pins are Com and Charge+ to be able to charge thru the BMS but it seems to have a communication protocol that I've not yet figured out. But any help is appreciated.
Otherwise the board has4. JST balance plugs that I'm guessing could be hooked up to say a balance board on a 10s balance charger, but I've not attempted that yet.
Nice job Jerry!
What about the internal fuse of the kobalt 80 volt?
40a fuse
@@JerryMinne can you show the actual fuse replacement process
Hi, thanks for your videos, what are the other two terminals? I have a cramer 82v (interchangable with greenworks 82v) there are four terminals, +, _, Ω (ohm) and C, on my strimmer the C is not used but the other three terminals are. I'd like to use these batteries for other projects but wouldn't want to fry it!
the other terminals is for charging monitor.
Hi there, what type of cells were in this battery?
18560 battery cell
@@JerryMinne Hi Jerry. I believe that they're 18650 cells, as opposed to 18560.
@@JerryMinne specifcation of cells? Either they are sony vtc, sanyo inr or samsung inr??
Holy sounds a little complicated but I guess it can be done.
Great vid @UCekrpNk_DJ8sPWFmiMeNloA
I have the EMMO GT80 scooter with 80V/20Ah Lead Acid battery.
I want to build whichever is the best and Economical way to add up to 80V, can this be done?
80V/20Ah (LiFePO4) battery
or
2 x 40V(LiFePO4) battery =80V
or
4 x 20V(LiFePO4) battery =80V
Thanks
All works. Depending on what battery you can get.
@@JerryMinne What? what kinda response is that. I'm going to build not buy
I have one of those 80V battery. It is from Stiga and have 5Ah :O
Do a teardown video about the kobalt 80v grass trimmer.
There are the same batteries.
I hear a metal clank in my Greenworks 80volt extended run battery. It charges fine and holds charge but the noise worries me
There's no moving parts inside. You better open it to see what's wrong with it.
What brand of cells are in these?
I don't see any brand there.
@@JerryMinne Hi Jerry, I pulled apart my battery. The cells are marked UR18650RX which corresponds to Panasonic/Sanyo 18650 cells with a 20A max discharge. You can find the datasheet here: datasheetspdf.com/pdf-file/831728/PanasonicBattery/UR18650RX/1
There are 20 cells per module and they are all spot welded to what looks like nickel interconnects.
I have torn apart and rebuilt MANY of these batteries. The 2.0Ah batteries either have Sanyo UR18650RX or Samsung INR18650-20R cells. The 2.5 Ah battery contains Samsung INR18650-25R cells.
@@dafretz do you know the cell types in a kobalt 80v 6ah?
This is a cover removal not a tear down... take the cells out disconnect the boards maybe
for what?
@@JerryMinne to know exactly what cells and how many?
great channel 👍 and nice videos, i sub'd