Using 36 volt 14ah battery on a 24volt ebike

Gazza2

Just Joined
Dec 10, 2016
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Hi, please accept my apologies if this question has been asked before or ive posted in wrong forum.
I have spent many week searching for a simple answer and have no yet found it.

Some 2 years ago I purchased from Halfords a COYOTE EDGE ELECTRIC MOUNTAIN BIKE. It has a Bafang 8fun 250 watt rear hub motor, powered from a 24 volt 8.8ah battery.

After faultless use the battery has now started to lose power.
It has been used daily on a 14 mile round trip along mostly level roads & some dirt paths in all weather.

What I would like to know is this =
Could I replace the 24 volt battery with a 36 volt one with out it causing any damage ?
I have spent many hours trying to find the answer.

Im not concerned about speed increase. But I would be pleased if range was increased.

Thank you for any help.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
16,550
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West Sx RH
Not had or tried 24v @36v.
Depends on the controller and whether or not it will fry, at worst you will smoke it and have to replace it with a 36v one. The Bafang hub depending on the version will probably be all right as they are sturdy, speed and torque will increase by up to 50%.
I'm sure d8veh will give you a more definitive view.
 

Croxden

Esteemed Pedelecer
Jan 26, 2013
2,106
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North Staffs
I've used an 18 volt battery on a 7.2 volt cordless compressor. It just goes faster, never burnt out.
 
D

Deleted member 4366

Guest
The motor doesn't care what voltage battery you use. Going from 24v to 36v will increase both the speed and power, to somewhere it should have been in the first place.

Most 24v Controllers will run OK at 36v, but not all of them. Controllers are cheap, so try it at 36v, then, if you get any problems, change the controller for a 36v one.

I think the controller in The Coyote Edge is in the battery receiver, so, if you change the battery, you need a new controller anyway. I just upgraded a 24v Schwinn Tailwind with one of these batteries that includes the controller. It cost about £300, but you get twice the power, a lot more range, better hill-climbing and the ability to cruise at 20 mph (if you want) or set whatever level of power you want, plus you get a throttle. Before ordering, check whether your motor is sensorless (less than 8 pins) or sensored (8 or 9 pins).These batteries/controllers are for sensored motors.

https://bmsbattery.com/ebike-battery/771-36v125ah-case-02-18650-battery-pack-battery.html

You get exactly the same with these two:
https://bmsbattery.com/ebike-battery/783-36v145ah-case-08-bottle-panasonic-battery-pack-battery.html

https://bmsbattery.com/ebike-battery/678-36v145ah-bottle-09-panasonic-battery-pack-battery.html

It's worth paying a bit more for the Panasonic ones.

They also do this one, which is very cheap and has a sensorless controller. It's not as powerful as the above ones:
https://bmsbattery.com/ebike-battery/567-36v10ah-bottle-ebike-battery-power-bank-battery.html

You can use any 36v battery you want as long as you can find a place and way to fix it. You can put the controller in one of those zip-up tool bags that you mount under the saddle.
 

Gazza2

Just Joined
Dec 10, 2016
3
0
62
UK
The motor doesn't care what voltage battery you use. Going from 24v to 36v will increase both the speed and power, to somewhere it should have been in the first place.

Most 24v Controllers will run OK at 36v, but not all of them. Controllers are cheap, so try it at 36v, then, if you get any problems, change the controller for a 36v one.

I think the controller in The Coyote Edge is in the battery receiver, so, if you change the battery, you need a new controller anyway. I just upgraded a 24v Schwinn Tailwind with one of these batteries that includes the controller. It cost about £300, but you get twice the power, a lot more range, better hill-climbing and the ability to cruise at 20 mph (if you want) or set whatever level of power you want, plus you get a throttle. Before ordering, check whether your motor is sensorless (less than 8 pins) or sensored (8 or 9 pins).These batteries/controllers are for sensored motors.

https://bmsbattery.com/ebike-battery/771-36v125ah-case-02-18650-battery-pack-battery.html

You get exactly the same with these two:
https://bmsbattery.com/ebike-battery/783-36v145ah-case-08-bottle-panasonic-battery-pack-battery.html

https://bmsbattery.com/ebike-battery/678-36v145ah-bottle-09-panasonic-battery-pack-battery.html

It's worth paying a bit more for the Panasonic ones.

They also do this one, which is very cheap and has a sensorless controller. It's not as powerful as the above ones:
https://bmsbattery.com/ebike-battery/567-36v10ah-bottle-ebike-battery-power-bank-battery.html

You can use any 36v battery you want as long as you can find a place and way to fix it. You can put the controller in one of those zip-up tool bags that you mount under the saddle.
Thak you for the recommendations. I will be fitting a panasPana one next summer. Just hoping my battery gets me through another winter.
 

Gazza2

Just Joined
Dec 10, 2016
3
0
62
UK
Thank you for the recommendations. I will be fitting a panasonic one next summer. I just hope my battery gets me through another winter.
 

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