well if need a battery that that live-long on your BB (blackberry) this battery can be your answer !
Sun Global Battery is one battery made by Japanese ,but now they are selling around Malaysia only,i am not sure about that :P,
well, to the point , i am using BB 8520 , in the beginning my original battery can last up to 1 day ( i guess far enough ) because i used to browsing and BBM , but slowly that
at that battery just can last only for 3hours ++ ,so when i try this sun global battery it can last up to one day,,and its more that enough for me,,since i think I've something wrong with my BB device,,and i think if this battey ou use on your "health" BB it can las more than one day , so why don't u give a try and if its not like your expectation at least you have backup battery for your Blackberry
thank u