So despite my warnings my old man purchased a cheap as chips 6 cell 5200mAh battery for his Dell Inspiron 17R 5720. Surprise surprise less than a year down the line it is utterly useless. So does anyone know a reliable source for genuine or as good as genuine batteries for Dell laptops that actually last like / close to the Dell originals? Ebay and Amazon is an utter minefield so wondered if someone who purchases a lot of batteries or has had some good experiences could direct me towards a decent seller. Thanks! Mark
