MB, looks as if you got a bargain there! How about this:-
Samsung Digimax A7 - Three power sources
Bearing in mind that you can't shoot pictures if you don't have power, Samsung designed the Samsung Digimax A7 to support five different power sources, including AA Alkaline, CR-V3, Ni-MH, a dedicated Samsung Li-ion (SBP- 1303) and an AC adapter. Li-ion and Ni-MH batteries provide enough power for roughly 308 shots, while AA Alkaline enables users to capture up to 110 images.
from:-
http://www.letsgodigital.org/en/news/articles/ story_2346.html
The CR-V3 it mentions is the kind I use. There is a rechargeable one from Maplin. Seems dear at �19 but it is worth it.
http://www.maplin.co.uk/Module.aspx?ModuleNo=4 3367&criteria=CR-V3&doy=8m7
If you still want to have an 'ordinary' CR-V3 then don't pay the �9.99 (or more) that you'll find on the High Street - look at 7dayshop for a twin pack much cheaper.
http://www.7dayshop.com/catalog/product_info.p hp?cPath=777_3&products_id=6863
I also keep some AA rechargeables as well (belt and braces). If you want to know more about batteries, look here:-
http://dpfwiw.com/batteries.htm