Ok cool thank you, and yeah I kinda figured that, maybe I'll get lucky and it's just some of those barrel rechargeable batteries inside it so I can just buy some of those and restore the original one myself, I just hope removing the CMOS and replacing the hard drive gets me access to it 
Old laptop question, have a 2007ish Dell xps m1530 and am currently locked out of it, will removing the CMOS and replacing the hard drive allow me to use it? If it does i was wondering what's the most powerful cpu it supports? And if I updated it to the m1530 a12 bios it should support 8gb of ram right? Lastly does Dell still make the batteries for it? Trying to make it so I can run Linux Lubuntu and have a 2tb hdd and as much ram as possible, any help appreciated thanks
Hardware and software upgrade questions m1530