My battery is 52volt will i need a 48 volt bms or a 52 volt bms?

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Glens carzy ebike   1 mW

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My battery is 52volt will i need a 48 volt bms or a 52 volt bms?

Post by Glens carzy ebike » Aug 07 2019 7:46pm

My battery is 52volt will i need a 48 volt bms or a 52 volt bms?

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Matador   10 kW

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Re: My battery is 52volt will i need a 48 volt bms or a 52 volt bms?

Post by Matador » Aug 07 2019 8:23pm

A 14S BMS is necessary. Some 14S BMS can be used in 13S configuration.

john61ct   1 MW

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Re: My battery is 52volt will i need a 48 volt bms or a 52 volt bms?

Post by john61ct » Aug 08 2019 2:24am

14S x 3.7V = 51.8V nominal

14S x 4.2V = 58.8V max charging voltage

Is that what you are calling a "48V" bank?

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Matador   10 kW

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Re: My battery is 52volt will i need a 48 volt bms or a 52 volt bms?

Post by Matador » Aug 08 2019 8:43pm

I think he meant 52V as a rounded figure for 51.8V nominal, thus 14S setup. Cause even hot of the charger a 13S setup is not close to that 52V figure (54.6V hot). Of course we assume Li-Ion but not LiFePO4... Given lack of detail specs.

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john61ct   1 MW

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Re: My battery is 52volt will i need a 48 volt bms or a 52 volt bms?

Post by john61ct » Aug 08 2019 9:06pm

yep why I'm asking.

answer may well be

"dunno"

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