PP3 Battery Amp Hours? - RC Groups
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Apr 02, 2009, 12:47 PM
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Neil Stainton's Avatar

PP3 Battery Amp Hours?

Does anyone know the capacity of a PP3 size 9V battery? Alkaline disposable ones are getting so expensive, and similar form factors 2S lipos are so cheap from Hobby City (see http://www.hobbycity.com/hobbycity/s...dProduct=7301), that I am thinking of substituting them in some appliances.

Maybe even smoke alarms???

Apart from the capacity, I don't know how the self discharge characteristics compare...

Comments, suggestions, precautions?


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Apr 02, 2009, 02:14 PM
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I have some Nimh rechargeables that are 200mah capacity.

Many of these rechargeables are not 9V(8.4V), but 7.2V.

The capacity of the battery below is 600mah @ 25ma discharge current.

400mah @ 100ma

Apr 02, 2009, 02:37 PM
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Neil Stainton's Avatar
Thanks Martin, that is very useful. It sounds as though the Rhino 350mah pack will be in the same ball park, capacity wise at least.


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