BMS needed on four 12v batteries in series?

pongyboy1

1 mW
Joined
Jan 20, 2021
Messages
15
If I wire four 12V 100AH batteries in series, do I need a BMS? And is a BMS recommended for any ebike battery? This would be used on my 48V motor.


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no only for lithium

But going to bigger Ah, lower voltage units would be much better

2 strings max, maybe three
 
The best battery value by far is Duracell (actually Deka/East Penn) FLA deep cycle golf cart batteries, 2x6V, around $200 per 200+AH @12V pair from BatteriesPlus or Sam's Club.

NAPA relabels it here: https://www.napaonline.com/en/p/NBP8144 Deka self-labeled also sold at Lowes.

 
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