Powering 4 Motor DC and 2 Servo

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so, confused why robot can't move (it can, 1cm far stopped buzzing sound), , browsed forum. found answer, problem is, powering robot 9v battery , couldn't. need power stacked aa batteries can work (though not tested).

my question is, why 9v battery couldn't power it, aa batteries (might be) can?
can power stacked 9v (maybe 3)?
there no lot of spaces left need minimalize it.

my project :
a robot car grip
1 arduino, 1 motor driver, 4 motor dc, 2 motor servo , arm grip

thank you

the problem little 9v batteries limited in amount of current can supply. motors try take more current battery can supply, battery voltage drops , stops.

aa batteries can supply more current without voltage dropping. technically have lower "ir - internal resistance" - if you're interested in details google "battery ir".

you might away connecting several 9v batteries in parallel. it's not solution, might not work @ , if work you'll have put new batteries in because last short time.

steve


Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > Powering 4 Motor DC and 2 Servo


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