Compaq cq-40/601tu
Not getting battery backup

ANIMESH SINGH/4/11/09/SNo.cnd9362qvy/dear sir my laptop gives only 1hr backup at times battery is indicated low even after charing.

my address: I HAVE COMPLAINED TO HP CUSTOMER CARE CASE ID IS 4617133346&4617738760 ALSO 4618400788, BUT TILL TODAY NOTHING IS BEEN DONE.MY LAPTOP IS WITH "THE COMPUTER SPOT/No 4, CMA MARKET, REWA ROAD, SATNA, (M.P) 07672-471444O THE NEEDFUL