On Dec 10, 7:08*pm, robert wrote:
The Natural Philosopher wrote:
mark wrote:
Why is it that rechargeable batteries state the capacity,eg., 2500 mAh
but the 'use once' sort don't?

becaue..they dont actually HAVE a capacity in tesame sense.

A rechargeable is generally rated at a 10 hour discharge rate: with
decent cells that capacity is broadly constant across anything from 10
minutes to about 100 hours. Dry cells are not like that. They rapidly
polarize under high currents, but then 'recover' if left alone.

mark

If you look in the technical data on the manufacturers sites you will
find mAh data.
ie

http://www.duracell.com/oem/Pdf/new/MX1500_US_UL.pdf

It used to be given in (I think) the Rapid catalogue, maybe Maplin but
I haven't bothered with theirs for quite a few years.

MBQ