gordonshumway
New Member
- Joined
- Sep 13, 2021
- Messages
- 3
Hey everyone, I goofed and over-charged my LifePO4 cells to 4.2 volts while top balancing and am wondering if I ruined them or if my mistake is salvageable.
I was top balancing my 280ah cells as Will Prowse says to do on his 'how to top balance' YouTube video, but I must have messed something up along the way because when I checked on progress this morning my voltage on my charger said 4.5 and the cells were reading 4.2 volts! Last night before bed the charger was set to 3.6 and was pulling about 10.5 amps, cells were at ~3.35v. About 10 hours later they were at 4.2. Did I ruin the cells? Is there anything I can / should do now that they're sitting there at 4.2 volts? (obviously I stopped charging them when I found them, and they've just been sitting on my workbench since).
Charging was taking a loooong time, so at one point this weekend I created new leads using 10ga wire. The charger settings must have gotten out of whack when I turned it back on with the new leads connected to resume charging, but I don't think I touched the voltage dial. I don't quite understand how I managed to shoot past the 3.6v the charger was set to, but regardless here we are ?.
These are going into a camper and I'm really not wanting to sleep next to a ticking time bomb if I've compromised the cells. Thanks for any help / advice!
I was top balancing my 280ah cells as Will Prowse says to do on his 'how to top balance' YouTube video, but I must have messed something up along the way because when I checked on progress this morning my voltage on my charger said 4.5 and the cells were reading 4.2 volts! Last night before bed the charger was set to 3.6 and was pulling about 10.5 amps, cells were at ~3.35v. About 10 hours later they were at 4.2. Did I ruin the cells? Is there anything I can / should do now that they're sitting there at 4.2 volts? (obviously I stopped charging them when I found them, and they've just been sitting on my workbench since).
Charging was taking a loooong time, so at one point this weekend I created new leads using 10ga wire. The charger settings must have gotten out of whack when I turned it back on with the new leads connected to resume charging, but I don't think I touched the voltage dial. I don't quite understand how I managed to shoot past the 3.6v the charger was set to, but regardless here we are ?.
These are going into a camper and I'm really not wanting to sleep next to a ticking time bomb if I've compromised the cells. Thanks for any help / advice!