Bafang Ultra G510 52v/48v differences?

[greeno]

Does anyone know the difference between the 48v version and the 52v one?
I know the 48v motor works fine with a 52v battery. I do notice some motors have a sticker on the bottom that states 48v or 52v. Im guessing it's the controller's rating maybe?
Back when I ordered my motor from WW I clearly specified that it would be for a 52v battery system yet the motor I got had the 48v sticker on the bottom.
The reason I"m asking is I'm going to get a backup motor and there is a substantial lead-time on the 52v version (verses the 48v one) and I might just get the 48v one if their's no difference.
Anyone know?

 

[Merle Nelson]

We need an emoji that shows a caracatur (sp) of interested and listening.

I was wanting to buy a backup ultra motor as well and have WW install the improved controller but the timing seems to be off at the moment for me.

 

[TomD]

I'm assuming the controller may start nannying the output at low voltage to protect the battery, other than that doubt there is any difference assuming both are UART motors.

 

[greeno]

To bad Pushkar doesn't monitor his own site anymore and respond to inquiries on products he reps, it's a shame. Trying to get an answer from his official site doesn't help much either, that's why I occasionally post up inquiries on here to people that actually respond, what a concept.
Moving on...
I know for a fact the 48v motors will work fine with the 52v battery system, probably a lower value LV cut-off (in controller) than a 52v model but the battery BMS would shut-off before those values are reached anyway.
I wonder if a 52v motor using a 48v battery would be issue as the values would be fairly close together as far as protection circuits.
I know the Innotrace website ( germany ) has the option of selecting a 48 or 52v version as well as other sites offering up G510 motors so there must be a valid reason.
Or maybe I overthink to much, don't answer.
I know a couple of guys up at Luna and they say the Ultra is good for 60v all day long as well as the BBS02 and BBSHD series motors alone not including the controllers rating.

 

[TomD]

I was sent an innotrace controller programmed with 52V setting by mistake for my bike with 48V battery. The controller nannying was super annoying at lower voltage as I still had plenty of charge left but the controller thought the battery was on its last legs. Other than battery nannying and feeding the display a SOC% based on assumed battery voltage I don't think there's any difference. In fact WW does not mention the stamp on the motor as pertinent when upgrading the controller, so I'd venture to guess there is no motor difference. At best the stock controller may be feeding the appropriate SOC% for the stamped voltage.

 

[greeno]

Mr. T I think you are correct in that the motor is either voltage and selecting one or the other only is for the probable LV cut-off regulated with the controller. So as far is the controller effecting the motor performance that would only be an issue as in your case 52v controller and 48v battery supply. Going the other way should have no bearing on usage.

 

[TPEHAK]

There is a comment on this video says "If your original motor is 48V, your new controller is 52V, the calibration display will not work. Make sure the original motor and the new controller are the same voltage, both 48V or both 52V, otherwise the calibration will not work." So maybe there is a difference between 48V and 52V motors and not only controllers