"MartinM" wrote in message
oups.com
I see Maplin do a Li-Ion rechargable pack (meant for camcorders but
prolly adaptable) which is 2Ah, seems a good trade off between weight
and capacity.
Not a good idea - LiIon batteries have a tendency to explode if not handled
and treated in accordance with guidelines - one thing they don't like is
deep current draw and vibration.
Tim
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