Hey guys, beginner here
I have fair knowledge of electronics but I thought I check with professionals before I do anything so here's the deal.
I have two 7000mAh 4 cell Li-Ion batteries each in 2P4S configuration and I left them connected to their Y lead (parallel lead) after disconnecting them from the power module of a Ranger ex 757-3. For some reason, one of them ended up with 3 overcharged (4.5V) cells and one undercharged cell (0.5V). My guess is that the other battery acted as a charger.
I thought of draining the 3 cells down to a safe voltage (4V) and then using a balance charger to top all the cells up to 4.2V.
I used a voltmeter to identify the leads of each cell on the balance lead and I'm going to drain them one at a time in a little 2212 920kv motor.
Would that fix my battery or is it going to explode in my face?
I appreciate your help and thanks in advance
I have fair knowledge of electronics but I thought I check with professionals before I do anything so here's the deal.
I have two 7000mAh 4 cell Li-Ion batteries each in 2P4S configuration and I left them connected to their Y lead (parallel lead) after disconnecting them from the power module of a Ranger ex 757-3. For some reason, one of them ended up with 3 overcharged (4.5V) cells and one undercharged cell (0.5V). My guess is that the other battery acted as a charger.
I thought of draining the 3 cells down to a safe voltage (4V) and then using a balance charger to top all the cells up to 4.2V.
I used a voltmeter to identify the leads of each cell on the balance lead and I'm going to drain them one at a time in a little 2212 920kv motor.
Would that fix my battery or is it going to explode in my face?
I appreciate your help and thanks in advance
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