gaveupontv
New Member
I was going to top balance my new 4s CATL battery pack, but decided to charge it first, and then 'top up' any cells to 3.65 Volts. I'm using the victron12./30 1 output. It's showing 30 amps going in right now, around 420 watts. I'm using 8 gauge 2 foot long leads with ring terminals. These are the 302 ah cells. with the overkill solar 4s BMS.
The BMS is all put together and hooked up, and I'm charging to the brass terminals on the exterior of battery box.
This how it's done, right? Anybody see any errors? I'll come back and individually charge the cells, taking off the bms is I have to. At this point, the bms app (overkill solar) is showing the 4 cell voltages only .004 volt difference (low of 3.343 and high of 3.346-3.347) I assume I'm in the "knee" so that doesn't tell you a lot about the SOC?
Richard
The BMS is all put together and hooked up, and I'm charging to the brass terminals on the exterior of battery box.
This how it's done, right? Anybody see any errors? I'll come back and individually charge the cells, taking off the bms is I have to. At this point, the bms app (overkill solar) is showing the 4 cell voltages only .004 volt difference (low of 3.343 and high of 3.346-3.347) I assume I'm in the "knee" so that doesn't tell you a lot about the SOC?
Richard