ok, at this moment I'm using a 48v 10ah(30a bms) battery in parallel using a combiner with a 48v 20ah(30a bms) on a single motor ebike and it works perfectly. I have a second ebike with dual motors which has a 48v 23ah(50a bms) battery and utilizes two controllers@25amps each. Can I use the 48v 10ah(30a bms) battery with a 50a combiner to add capacity to the system with no issues even though that smaller battery has a lower rated 30a bms?
Adding 2nd battery to a dual motor ebike
- Thread starter damocles
- Start date
I think this is getting a bit complicated. Why not just plug them in one at a time?
Yeah, you’re pretty well guaranteed to trip the 30A BMS using dual 25A controllers, and it’s messy using multiple batteries.
Personally, I’d sell all three of them and buy a single 30Ah battery with 50A BMS that will do the job for both bikes … assuming the 30Ah can fit in/to available space.
Personally, I’d sell all three of them and buy a single 30Ah battery with 50A BMS that will do the job for both bikes … assuming the 30Ah can fit in/to available space.
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