Hi,
I’ve just recently laced up a bafang g062 1000w 6T to a 20in fat bike wheel. After doing some research, it seems like over volting this to 72v might be a bad idea. However, most posts I’ve seen about over volting a geared hub motor are from about 5 years ago and they’re discussing the older bmc 600w or Mac motors. I noticed a couple people here have got the g062 up to 60v with no heat issues. So I was curious if taking this to 72v would be as big of a problem today as it was years ago? I don’t plan on going more than 30A at 72v. I currently run it at 48v 45A and haven’t had any heat issues after a couple hundred miles.
First and foremost, if I was a smart or patient guy I would have probably asked this question or decided on a final build before purchasing this motor and probably would have gone with a DD motor . But it is now clear I am neither of those :lol: and as such I gotta work with this motor.
I’ve been reading the biggest challenge is dealing with heat, both in the phase wires and stator. I figured I could drill holes in the motor casing for better ventilation and possibly replace the phase wires for a thicker gauge. Although I’m not sure how big I can go while having them still fit through the axel .
The next thing would be playing with acceleration so as not to melt the nylon gears. Or if anyone would happen to know where to get metal gears for this motor? I saw a video of a tear down of a g062 750w and they measure 48mm planetary gears and a 88mm clutch. I will open it up on my next day off to confirm these measurements are accurate.
I just put together a 72v 20Ah LiFePo4 battery with a 100A BMS and trying to find a decent 72v 45-100A sine wave controller like the phase runner or a sabvoton around~$150. (It seems like an almost impossible price point) Hoping to program it to keep amps around 30A. Although if modifying the motor helps keep it cool, might try it up to 35 or 40A. Only reason I’m looking for a higher amperage controller is that I plan to move the controller/battery over to a new frame once it’s done being fabricated. However, I’d like to keep this as a 72V system and use a cheaper sabvoton mL 45A controller (if this all works out) for my buddy to use.
Any wisdom, comments , criticisms, advice , help or anything in between is greatly appreciated!
I’ve just recently laced up a bafang g062 1000w 6T to a 20in fat bike wheel. After doing some research, it seems like over volting this to 72v might be a bad idea. However, most posts I’ve seen about over volting a geared hub motor are from about 5 years ago and they’re discussing the older bmc 600w or Mac motors. I noticed a couple people here have got the g062 up to 60v with no heat issues. So I was curious if taking this to 72v would be as big of a problem today as it was years ago? I don’t plan on going more than 30A at 72v. I currently run it at 48v 45A and haven’t had any heat issues after a couple hundred miles.
First and foremost, if I was a smart or patient guy I would have probably asked this question or decided on a final build before purchasing this motor and probably would have gone with a DD motor . But it is now clear I am neither of those :lol: and as such I gotta work with this motor.
I’ve been reading the biggest challenge is dealing with heat, both in the phase wires and stator. I figured I could drill holes in the motor casing for better ventilation and possibly replace the phase wires for a thicker gauge. Although I’m not sure how big I can go while having them still fit through the axel .
The next thing would be playing with acceleration so as not to melt the nylon gears. Or if anyone would happen to know where to get metal gears for this motor? I saw a video of a tear down of a g062 750w and they measure 48mm planetary gears and a 88mm clutch. I will open it up on my next day off to confirm these measurements are accurate.
I just put together a 72v 20Ah LiFePo4 battery with a 100A BMS and trying to find a decent 72v 45-100A sine wave controller like the phase runner or a sabvoton around~$150. (It seems like an almost impossible price point) Hoping to program it to keep amps around 30A. Although if modifying the motor helps keep it cool, might try it up to 35 or 40A. Only reason I’m looking for a higher amperage controller is that I plan to move the controller/battery over to a new frame once it’s done being fabricated. However, I’d like to keep this as a 72V system and use a cheaper sabvoton mL 45A controller (if this all works out) for my buddy to use.
Any wisdom, comments , criticisms, advice , help or anything in between is greatly appreciated!
