I purchased the battery but its not working so I called the dell customer care for 1 hour n at the end they said you have to contact the compuindia team.When I mail compuindia they said you have to talk to dell technical team.I lost my 1990 rs as these shitty people of compuindia will not goin to return your money back any how.So irequest all to never ever purchase anything from compuindia.Its the worst site ever, wort people