Superb Choice Battery Compatible with Pavilion DV7-6C90SF, DV7-6C90US, DV7-6C95DX

so laptop batteries this one is a hundred and twenty-five dollars if I buy it directly from Dell the company that made this laptop however if I go to Amazon I can get one just like it that advertises it has more capacity meaning I can stay unplugged longer and it only costs 20 dollars instead of a hundred and twenty five why isn't everyone doing this this battery lasted for four years before I started getting the message when I hover over the battery icon plugged in not charging 0% available meaning that this battery was recognized by the computer but it was not able to charge the battery because it did not think that this battery had the ability to or that it was not safe to do so this battery worked right out of the box for about two months and that was it now the company that makes this battery anchor which I have linked in the description does feature an 18 month warranty and when I