So I got two chargers for my 6S4P pack. One slow at 2amps and one fast at 5amps. I bought them from aliexpress, so I wanted to double check them to make sure they’re properly rated.
Slow charger: 25.37V and 2amps
Fast charger: 25.18V and 8amps.
Here are some pictures too, the Dymo tape is what I got when I tested them with my multimeter.
The battery and BMS.
My questions are:
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Is it safe to use the slow charger at 2amps when the voltage is 25.37V? That could put my cells at 4.2283V if the BMS doesn’t stop it.
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The fast charger at 8amps seem to have a good voltage, but if my calculations(8amps / number of cells in one pack which is 4 = 2amps per cell) is correct then charging a 2500mah cell at 2amps is barely on the safe side of things. Should I just scrap that charger?
If I’ve missed anything or my math is off, please correct me!
Cheers