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Old Apr 02, 2009, 11:47 AM
HyperFlight Support
Neil Stainton's Avatar
United Kingdom, England, Stratford-upon-Avon
Joined Feb 2001
3,839 Posts
Question
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.

Tachometers.
Multimeters.
Maybe even smoke alarms???

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

Comments, suggestions, precautions?

TIA,

Neil.
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Old Apr 02, 2009, 01:14 PM
Registered User
Toronto Canada
Joined Dec 2002
5,329 Posts
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


http://data.energizer.com/PDFs/522.pdf
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Old Apr 02, 2009, 01:37 PM
HyperFlight Support
Neil Stainton's Avatar
United Kingdom, England, Stratford-upon-Avon
Joined Feb 2001
3,839 Posts
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.

Neil.
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