BBS02 48v 500/750 Same unit?

[Provokatoren]

Hi,

Is the BBS02 48 500w the same unit as BBS02 48v 750w? Many vendors are selling the BBS02 48v at either 500w or 750w were the latter often is 40-50 USD more expensive. My question ia therefore if the only difference is programming, or is any of the hardware different between the two?

Thanks,
Provokatoren

[amigafan2003]

Same motor, different controller but you can swap the controllers over. For example, my 48v500w controller died and I put a 48v750w controller on it no probs.

However, some vendors are selling 48v750w units programmed to 18 amps and marketing them as 500w units (makes sense to me - only have to stock one model). True 500w units cannot have their amps programmed above 18 amps.

[Rassy]

Yes, what amigafan said. I did the same thing several years ago. But in the meantime Bafang physically changed the BBS02 case and the controller from a new BBS02 will not fit on an older BBS02 or vice-versa.

The original ones are commonly referred to as BBS02A and the newer ones as BBS02B.

[Provokatoren]

Ok, and this goes for BBS02B aswell, different controllers for the 500w and the 750w version? Guess there's no way of knowing beforehand if a vendor's BBS02 500w is 18 amp controller or de-tuned 25 amp controller?