> Assumeing that a battery is fully charged  (Ah uasally quoted at the
10 hour
> rate) 10Ah = 1 A for 10 hours this does not mean that you can get
10A for 1
> hour out of them at this level of discharge to a voltage of 1.7vpc
(for lead
> batts) typically derate by 50% at this sort of discharge current ie
10A a
> 10Ah battery may last 30 minutes.

This is called the 'Peukert' efficiency. Peukert says that battery
size shrinks with increasing discharge current.

Daniel...

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