Review on π HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Protection Board with Cell Balance β Integrated Circuits by Dave White
Do not charge batteries evenly.
Using this board to charge the battery I used 18650 3000mA batteries, 6 parallel batteries, 4 times, this board did not charge four 6 parallel batteries in the same way. I used an 18V DC power supply. The final voltage across each of the four arrays of 6 batteries was different, typically in the 3.9 to 4.2 VDC range. The charger I built for the same batteries charged all four rows of 6 batteries to 4.20. These cards work well if you don't care about the maximum charge of all batteries.
- Satisfied so far
- Some cons
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