Hello. I have a Bafang motor on my ebike. Numbers on the housing are: CR R209 750, C57 1-14-512, 2208150797. I want to know what the highest amp hour 48 volt 30 amp battery is that I can use with this motor. I would also like to know what model Bafang Motor this is. The present battery is only 11 Amp Hours and it is not enough. Thanks for your help.
Please Help: I need to identify my Bafang Motor and Battery Options
- Thread starter timacn
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Gionnirocket
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Amp hour is capacity and not restricted by the motor... In other words you can use any *Ah/48v battery that you're willing to lug around. The higher the Ah, the larger/heavier it will be
Voltage (48v in this case) is what needs to be matched to the motor/controller.
I'm not fluent in Bafang markings... Post a Pic of the motor. But a quick Google leads me to believe it may be a 750w BBS02B, but those I think are the controller markings. There should be other motor markings as well
Voltage (48v in this case) is what needs to be matched to the motor/controller.
I'm not fluent in Bafang markings... Post a Pic of the motor. But a quick Google leads me to believe it may be a 750w BBS02B, but those I think are the controller markings. There should be other motor markings as well
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Thanks, Gionnirocket. The motor housing itself has the following codes: CR R209 750, C57 1-14-512, AND 2208150797. I think it should be simplle matter of sliding a new battery into the existing base (if it fits) or of putting on a new base to fit the new battery and hooking it into the motor. That shouldn't be too hard, I would think, but I read something that mentioned the possible need to recalibrate the controller after the new battery is installed. I have no idea what that involves, if such recalibration is indeed necessary, and how to do that if it is necessary.
Gionnirocket
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CR is typical of the controller markings
Yup... Found this: BBS02B 48V750W controller with "Bafang" logo: C571-30-512, CROF0214 or CR R209.750.SN.U 2;
https://www.greenbikekit.com/bafang-bbs01-bbs02-48v-controller.html
If it is a BBS02B.... in addition to those markings on the other side you should see some other numbers.
No calibration for any battery change... You just need to fit it to the bike. A larger battery will more than likely have a different base.
Yup... Found this: BBS02B 48V750W controller with "Bafang" logo: C571-30-512, CROF0214 or CR R209.750.SN.U 2;
https://www.greenbikekit.com/bafang-bbs01-bbs02-48v-controller.html
If it is a BBS02B.... in addition to those markings on the other side you should see some other numbers.
No calibration for any battery change... You just need to fit it to the bike. A larger battery will more than likely have a different base.
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Slaphappygamer
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You only have to calibrate the controller IF you want to use more current. I think the stock controller can be set to 30, or 35 amps. You might need the programming cable and the software to make those changes though.
Changing the battery, alone, will only increase your range.
Changing the battery, alone, will only increase your range.
Gionnirocket
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Not to nitpick... but that's not calibrating, that's a settings change.
BBS02B standard current setting is 25 Amps maximum. I set mine to 20amps and got 12,000 miles/3 years out of it before it got retired to a backup bike.
It definitely won't handle much more than 25Amps without greatly affecting reliability. I'd suggest a BBSHD if you want/need more.
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