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Good battery for rc car project [message #157695] Mon, 06 October 2014 10:04 Go to next message
messages@element14.co
Messages: 397
Registered: March 2013
Senior Member
Hi,I am working on a raspberrypi based rover. I got video streaming working and for the motors (2 of them), I am using an L298N Dual H-Bridge motor controller board.The controller works fine, however, for the motor power supply (going + to VCC and - to GND), I used the li-ion battery that came with the basic rc car I bought. The battery is blank, but the charger says it outputs 4.8V at 250mA, and takes 8 hours for a complete charge. When I test the car out, it works, but moves very slowly, and often stops. Without the weight, the car moves very swifty. It weighs less than 250g. The motor looks like:http://www.globalsources.com/gsol/I/DC-motor/p/sm/1056803236.htm Can anyone suggest a good battery for the project, or atleast weather I need to up my mA or my voltage?Original article at http://www.element14.com/community/message/127825?tstart=0#127825.

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Re: Good battery for rc car project [message #157697 is a reply to message #157695] Mon, 06 October 2014 12:34 Go to previous message
messages@element14.co
Messages: 397
Registered: March 2013
Senior Member
Can you post a picture of the whole thing, car + load etc.If I understand you correctly the car is fine until you add some mechanical load and then it won't go very well - this might be  one of many problems and you need to provide more information to work out what's wrong. MKOriginal article at http://www.element14.com/community/message/127861?tstart=0#127861.

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