I own a 1 year old Dell Studio 1535. Its original

Dell batteries lets say do have their critics, its not impossible to charge a non dell battery with an original adapter as long as you have the correct voltage type ie 11.1v as example for your specific machine. I know of lets say a fair few issues with this, and know Updating the bios has fixed this and sometimes not. On one specific bios flash the end result was the DVD drive disappeared (but thats a vista issue, easy fix) Bios update may solve this for you http://support.dell.com/ depending on country you reside (tab in left corner to choose country) if you do decide to charge the battery, charge it fors a fair few hours with the machine off with it being a new battery hope this helps a little , let me know if i can help further

Hi,
A generic Battery should Work fine.
Try going To my computer/Control Panel/Power options.
You should find a battery Icon, for the Battery if it,s recognised in there. select ( show on Desktop ) And refresh The Battery.
New Batteries usually require to be fully charged. Then Discharged ( no-Mains Power ) for the first 3-4 Charges. So that the Computers power Management System, Can guage the Capacity Of The battery Inserted.

Mike @ compurepair.