If I understand you correctly, the original was 3.7 v with 840 mah?
...and the replacement is 3.7v with 1000 mah?
   If so, it sounds logical--they're nearly the same...

"simon morris" <morris.simon@ntlworld.com> wrote in message
news:LBAic.457$Q04.25@newsfe3-win.server.ntli.net...
> I looking for an extra pack for my canon ixos430, it states in the book
> thats its 3.7v and 840 mah but i`ve looked on ebay and alot of them that
say
> that there campatable are 1000. Does this matter? I`d be gatefull of some
> help or advice as the instruction book says only use canon batteries with
> the charger that came with the camera.
>
>