9v batteries rechargeable
Charge AA battery with a hobby motor?
Is it possible to charge a Ni-Mh AA 1.25volt Rechargeable battery with a 9v-18volt hobby motor that will produce 1v when spun backwards, or with a 1.5-3v hobby motor that will produce .5 volts? If not how about when combined? And how do you do it?
1.5-3v- http://www.radioshack.com/product/index.jsp?productId=2102822&cp=&sr=1&origkw=hobby+motor&kw=hobby+motor&parentPage=search
9-18v- http://www.radioshack.com/product/index.jsp?productId=2102827&cp=&sr=1&origkw=hobby+motor&kw=hobby+motor&parentPage=search
It should work to a certain extent but you will need to put a diode in series to stop the cell discharging back through the motor. If you only have an output of 1 volt you will not get much charge into the cell but at least you will put a bit back – I doubt if you will need a resistor to limit the current as the reverse motor will probably only have a small output current anyway
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