Electronics > Beginners
Escooter conversion, battery can't handle current draw ?
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sargalha:
Hey guys !
I'm trying to do a scooter conversion, I have a 250 watt battery (36 v) and a 350 watt chinese generic controller. The thing is, when going uphill the battery shuts off. I think that maybe due to the current being drawn being too high. Does anybody know how to fix this issue ? Can I limit the draw current in anyway besides buying a new controller? Sorry for my english and for my poor knowlege of electronics I'm just starting, thanks for the help !
Gregg:
More information is needed to answer your questions.
1. What are the specifications of the motor and is it designed to be used with a scooter? For instance, a drone motor wouldn’t make a very good scooter motor. Does it have thermal protection?
2. What are the specifications of the controller? Be aware that cheap Chinese modules often have highly exaggerated specs.
3. What are the battery specs? Same comment that many battery specs are highly exaggerated. Do the battery cells have protection circuits?
In general what you are experiencing could be one or more of the following:
1. The motor is overloaded and drawing too much current.
2. The battery controller can’t handle the current to the motor
3. The battery voltage is dropping too much
Circlotron:
What is the final drive gearing like. e.g how many revs of the motor for 1 metre forward movement. If the gearing is too steep the motor will struggle and draw lots of current.
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