Arduino motor shield and RC car using up battery quickly

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hello,

i've got rc car took apart , replaced receiver board arduino. atop i've stacked motor shield, connector front steering , motor. i've got 1 9v battery powering arduino, , 1 powering motor shield (i cut vin jumper have independent power.) there's ultrasonic sensor in front tells car how far object, , if it's less distance, car backs up, turns continues straight.

this runs fine on new 9v out of package. however, after 15 minutes, car becomes slow, , battery can't power car anymore. becomes hot. guess motors using current. correct? if so, how fix it?

thanks!
mihir

that's normal. why ? because 9v battery multi-meters , smoke alarms. if going use rc car, need learn rc batteries bacause that' s rc cars designed use. if not using rc  battery should not using rc car.  they go hand in hand.


Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > Arduino motor shield and RC car using up battery quickly


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