Programming the Onebot S6 ebike

xhannyah

Just Joined
Apr 21, 2021
3
0
Japan
I made an account because I have this same bike and I came accross this thread. I'm trying to mod it as well.

I have also p4 on my onebot. What is it?
I think the newer models come with a different controller. This setting might be to switch between 36v and 48v but I'm not sure.

I have found the white and black cable.
but The ebike go not faster.
I recently bought mine and was able to remove the speed limiter by doing the brake/throttle trick. You basically hold both brakes and twist the throttle to full speed, turn on the bike while doing this and hold it for about 5 seconds, then release the throttle and both brakes.
 

xhannyah

Just Joined
Apr 21, 2021
3
0
Japan
I want to upgrade to a 10Ah+ 36v or 48v battery, but haven't been able to find one with the same dimensions as the one this bike uses.

Any help would be appreciated.
 
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Markus73

Just Joined
Feb 18, 2021
4
0
Hi guys, I was wandering if I could add a second 36V external battery (in a bag on steering wheel) connected in series with the original one , so double voltage (72V) but same ampere. Do u think the motor will be affected? Some electrical engineer has the right answer? Thx
 

sjpt

Esteemed Pedelecer
Jun 8, 2018
2,425
1,901
Fairly common to run a 36v rated motor at 48v, but 72v is probably not a good idea.
You would need to upgrade the controller (that is often needed even for 36v to 48v).
You might have problems with the BMSs on the batteries; you would certainly need to charge them separately with a 42v charger.
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
8,709
3,458
Basildon
Hi guys, I was wandering if I could add a second 36V external battery (in a bag on steering wheel) connected in series with the original one , so double voltage (72V) but same ampere. Do u think the motor will be affected? Some electrical engineer has the right answer? Thx
The answer is no. Your controller would pop, and even if you could find a 72v controller that you could fit somehow, your motor would run so inefficiently that it would overheat and burn on the first hill it got to if it could get that far.

The highest you could go is 12S (44V) by adding a 2S pack, but even that isn't straight-forward because it's very easy to brick either battery, which could be expensive. You can do it, but you need to understand about battery management.
 

Markus73

Just Joined
Feb 18, 2021
4
0
Thanks for the answers! I’m just finding a way to get 35/40 kph without compromise the whole ebike setup. If u have any suggestion...thanks for your time
 

Markus73

Just Joined
Feb 18, 2021
4
0
Maybe the best way to increase speed is excluding (remove) the native battery and use an external one 52V. Does it affect the motor in any way? Thx
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
13,120
5,111
57
West Sx RH
Thanks for the answers! I’m just finding a way to get 35/40 kph without compromise the whole ebike setup. If u have any suggestion...thanks for your time
Moped or motor bike.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
13,120
5,111
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West Sx RH
Maybe the best way to increase speed is excluding (remove) the native battery and use an external one 52V. Does it affect the motor in any way? Thx
Why can't you guys just accept it is only a push bike and stay legal.

Do you think the Plod or some one from the Plod doesn't read these type of posts, in time more ebikes will be stopped and questioned. For god sake if you are going down that route don't drag every else down with you.
 

Markus73

Just Joined
Feb 18, 2021
4
0
Why can't you guys just accept it is only a push bike and stay legal.

Do you think the Plod or some one from the Plod doesn't read these type of posts, in time more ebikes will be stopped and questioned. For god sake if you are going down that route don't drag every else down with you.
Because I use it inside a private airport where I use to work
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
13,120
5,111
57
West Sx RH
Because I use it inside a private airport where I use to work
And if said airport is accessible/used by others it still isn't classed as private use.
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
8,709
3,458
Basildon
Hi guys, I was wandering if I could add a second 36V external battery (in a bag on steering wheel) connected in series with the original one , so double voltage (72V) but same ampere. Do u think the motor will be affected? Some electrical engineer has the right answer? Thx
Maybe the best way to increase speed is excluding (remove) the native battery and use an external one 52V. Does it affect the motor in any way? Thx
You'd need a battery, controller, hydraulic brakes and high gearing. It would be easier to convert a bike more suitable for that sort of speed. The Onebot S6 is a 12mph bicycle. It wouldn't make sense to buy one for £800, then chuck all the electrical items, and spend £500 on new bits to get something that's an abortion, when you can buy a much better donor bike for £200 and £800 on a battery motor and controller that would get you what you want.
 

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