Hey everyone - I want to get a replacement battery for my Toshiba laptop. It's stocker is a 8-cell that lasts less than 2 hours

. I go onto toshibadirect.com and they sell a 12-cell that lasts 3 hours... my question is: is there a name brand that does OEM replacement batteries that's even more reputable than back to Toshiba itself... and possibly selling higher-end units that have more cells/mAhs and would last longer? Any suggestions? Thanks.