AviationElectrician
New Member
Like the title says, I am trying to get more power out of two AA batteried, and I would like to know what the best way to do that is. Thanks.
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what i am doing is an engineering project, and the only stored energy I can use for the device is two AA batteries, so I am trying to see if I can get mor voltage out of them to speed up the motor I have to use.
If you feed more voltage to an electric motor then its current also increases. Its heating also increases.
1) Can the motor survive having more voltage and current?
2) Can the AA battery cells supply that much power?
Agreed. Especially with alkalines, which tend to fall flat on their face when you try to pull a lot of current from them. NiMH and NiCd do much better, an AA Ni cell can deliver up to 4A, and with high-quality cells even 8A.It will be very difficult to get a circuit to increase the voltage AND be able to deliver the high current you require
It will be very difficult to get a circuit to increase the voltage AND be able to deliver the high current you require for the motor. You need 3v to 6v converter @ approx 500mA.
Of course, at 8A load, your AA NiMH cell will last maybe 10 minutes.