i too am having this problem with my 1 yr 7mo. old Dell XPS M1710 battery. 80whr 9-cell lithium-ion 11.1v 4800mAh
Manufacturers #: G5266
Dell #:312-0455
local shop that i bought it from said dell told them it would be 200$. i took 1 min on google and found some for 68$. but i dont know much about batteries, do i need to worry about cheep knock offs? are there such? if it has the dell logo on the bat is that enough to insure its legit?