larrylwill
New Member
- Joined
- Aug 22, 2021
- Messages
- 92
I put together 4 lipo4 280a cells for my motor home. The cell voltage was about 3.2v +/- 0.5v per cell when I got them.
I wired them in series and charged them with a 10 amp charger. All cells were 3.3v +/- 0.1v. Next I charged them with my Motor home generator (extra Alternator) which was putting out about about 60 amps, there was also a AGM 100A battery connected in parallel. After about 5 minuets 3 cells were about 3.3v and one was 4.1v.
I removed the BMS and AGM battery and connected them in parallel and they settled back to 3.3v all cells +/- 0.1v. I felt the wire getting hot on the 4.1 cell for about 5 minuets until the voltage dropped. I then connected them back in series and put on a lipo cell charger/balancer at 1.5 amp. In the balance mode. After an hour there back to reading the same as before. 3.3v 4.1v 3.3v 3.3v. How can I balance them so they stay the same? I could wire them back in series and hook up a 3.6v supply like in wills video but I would have thought the Lipo charger/balancer would have balanced them. What do you suggest
Link below.
tinyurl.com/ysw9ayc7
I wired them in series and charged them with a 10 amp charger. All cells were 3.3v +/- 0.1v. Next I charged them with my Motor home generator (extra Alternator) which was putting out about about 60 amps, there was also a AGM 100A battery connected in parallel. After about 5 minuets 3 cells were about 3.3v and one was 4.1v.
I removed the BMS and AGM battery and connected them in parallel and they settled back to 3.3v all cells +/- 0.1v. I felt the wire getting hot on the 4.1 cell for about 5 minuets until the voltage dropped. I then connected them back in series and put on a lipo cell charger/balancer at 1.5 amp. In the balance mode. After an hour there back to reading the same as before. 3.3v 4.1v 3.3v 3.3v. How can I balance them so they stay the same? I could wire them back in series and hook up a 3.6v supply like in wills video but I would have thought the Lipo charger/balancer would have balanced them. What do you suggest
Link below.
tinyurl.com/ysw9ayc7