Swap controler for BPM motor

Get all your technical information about electric bikes here.
Post Reply
Robleman
10 mW
10 mW
Posts: 28
Joined: Jan 18, 2017 2:40 pm

Swap controler for BPM motor

Post by Robleman » Dec 10, 2017 3:30 pm

Hi,
I have a hub BPM motor working with a 36V 22Acontroler & battery. I also have a spare 48V battery and controler (22AInfineon, use to work fine with a Nine Continent(9C) motor)

My question is if I can plug the 48V battery and controler into the BPM motor because:
- BPM is geared and 9C is direct drive so eventhough both use hall sensors maybe the controler is not compatible?
- increase the voltage from 36V to 48V may be too much for a chinese geared hub?

The 48V battery is in better shape and I can locate it inside the frame so this change can be a good improve if it works. A little more power is allways welcome.

Thanks in advance for any advice

User avatar
amberwolf
100 GW
100 GW
Posts: 24216
Joined: Aug 17, 2009 6:43 am
Location: Phoenix, AZ, USA, Earth, Sol, Local Bubble, Orion Arm, Milky Way, Local Group
Contact:

Re: Swap controler for BPM motor

Post by amberwolf » Dec 10, 2017 11:17 pm

Keep in mind it'll be faster by the ratio of new voltage to old, at any particular throttle setting (or PAS), and it'll also subject the motor to more heat (from greater power) at a similar ratio.

The only issue I can think of that a few experience with certain geared motors is the ones with high pole counts can have problems at faster speeds, where the controller loses sync with the motor.

You'd ahve to test it to see if that''ll be an issue with your components or not.

Robleman
10 mW
10 mW
Posts: 28
Joined: Jan 18, 2017 2:40 pm

Re: Swap controler for BPM motor

Post by Robleman » Dec 11, 2017 2:57 pm

Thanks amberwolf,

So I may plug and test it, aparently its no incompatibility apart from taking care not to force it to the limit continusly.

Post Reply