In message , "Dave Plowman (News)"
writes
In article . com,
Trevor Smith wrote:
Have you thought of a sealed lead acid battery?. Maplins do various
sizes and also the chargers.

Bit too heavy for this application.

Have you looked at e.g.

http://cpc.farnell.com/productimages...d/42403741.jpg

Which comes from

http://cpc.farnell.com/jsp/endecaSea...owImages=true&
Nty=1&N=411&Ntk=gensearch&Ntt=sealed%20battery&No= 0#results

--
geoff