I have a laptop computer (Dell L701X) which requires an 11.1 V battery with a rating of 8400 mAh (Battery Type R795X, 9 cell, 11.1 V, 90 Wh, 8400 mAh, other battery ID are: R1122J-733 & B052R796-9021).
If I place a new 11.1 V battery with the same physical dimensions in the computer, but with a rating of 5200 mAh the computer doesn't like the battery. On start-up the computer beeps & gives a text warning on the black start up screen. The on-keyboard battery indicator flashes between white & amber when both my old & new battery are in the computer. After boot up, the battery icon in the task bar acknowledges the 5200 mAh battery but the computer will not charge the battery - the battery is new and it only has a charge of 17%.
Does the computer need a 8400 mAh battery or is there a fault with the battery charger in my computer?