switching from 36v to 48v

[EmilSolheim]

Hi, so i recently upgraded my ebike's battery to a 48v for higher speed, but now the battery meter is not showing the correct battery left, is there any changes i have to do to the system to tell it that i'm using a 48v battery ? i got a bafang s800

 

[tomjasz]

More details needed, but most 36v systems Will be a problem with a 48v battery unless your controller Is dual voltage.

 

[theemartymac]

See page 9 and try that setting change. Password into the settings is usually one of these: 0512/0513/1919/9191/1199

http://aptdevelop.com/Public/Upload/5768a7fe265cf.pdf

It looks like that unit can handle both 36v or 48v, BUT the controller must be a 48V to send the correct signal. Did you upgrade the controller too?

 

[EmilSolheim]

None of those password worked is there any other ways of changing the voltage ?

 

[theemartymac]

Probably not. You may need to just break down and buy a new screen that is unlocked or pay a shop to do it. They're not too expensive if you just want the B&W version. $50-100. Probably similar to what a bike shop will charge you to reset the controller firmware (if that particular shop can do it).

Either way, try and validate which controller you have and grab a pic of the serial/model number when you have it opened up. If the controller is fixed voltage at 36V, a new or unlocked screen won't help anyway. And make sure you match the plug unless you like to pin plugs yourself.

 

[EmilSolheim]

This is the bike: https://www.facebook.com/permalink.php?id=115160591832496&story_fbid=3043540718994454

I think i'm gonna stick to this system as i got the bike at a auction for 90bucks, it's not worth it to upgrade for me

 

[theemartymac]

This is the bike: https://www.facebook.com/permalink.php?id=115160591832496&story_fbid=3043540718994454

I think i'm gonna stick to this system as i got the bike at a auction for 90bucks, it's not worth it to upgrade for me

Have you tried to message/email Intersport to see if they will help you?

 

[EmilSolheim]

thank you for your answer, but like i said i got it off a acution

 

[theemartymac]

thank you for your answer, but like i said i got it off a acution

They honestly may not care how you obtained it, and if they set a proprietary code for the settings menu, you may be able to sweet talk it out of them.

 

[EmilSolheim]

il try, thank you

 

[EmilSolheim]

They did not know any more than i do