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1 vote
2 answers
103 views

Confused about this BMS

I recently got a BMS model "bw-6022-5s" and planned to use it with my 4S5P (21V) battery pack. However, since this BMS looked different from the ones I'm used to, I did some research and ...
0 votes
1 answer
580 views

Can I mix three 18650s with different brands?

I have three 18650 batteries with different brands, but the same voltage and capacity. Can I mix them using a 3s BMS with balancer without a risk?
1 vote
0 answers
125 views

BMS abnormal behavior

I would like to power the lighting system of a small cabin using 3 DeWalt 18 V, 5 Ah battery packs. The system consists of six 10 W bulbs each (12/24 V) and a 20 W, 12 V spotlight. DeWalt battery ...
1 vote
0 answers
269 views

BMS shows wrong voltage, changes to 0 V under load

I made a 24 V, 4400 mAh lithium-ion battery using 18650 cells connected in a 7S 2P configuration. When I check the pack output voltage without the BMS it's around 21 V (very low, undercharged). When I ...