So my T420's factory battery from 2011 has finally took a nose dive. I don't blame the battery, its 6 years old! That said, is this a "genuine" battery? Is something this cheap going to at least last me a solid 2+ years before degrading bad? If this isn't genuine, or somewhat reliable, how much do I have to spend for a reliable 94wh battery? Also am I on the right track thinking that the battery for the T420 and the T530/W530 is the same? https://www.ebay.com/itm/Genuine-9C...349555?hash=item25bd4731b3:g:rxwAAOSwLcNZW2gm Planning on buying a T530 or W530 very soon, something in better shape than my overused T420.... Slap a 2tb hdd in it, and a 256-512 ssd, 16gB of ram, and have me another budget beast of a laptop... Don't wanna waste money on a crap battery, as I'm sure whatever used laptop I buy will need a battery.