Battery oh battery..

I was quite upset for the past one week because of my laptop battery. It wasn't functioning all of the sudden and i was like..what the heck?..what's happening.. Then i checked the price online.. Its 600 bucks for a 6 cell battery..*Shocked*Didn't even dare to tell my dad about it.. My brother in law suggested me to call Dell and check if the laptop is still under warranty..and gggreattt..im really lucky..i was so close to paying 600 bucks for a new battery as the warranty expires one the 28th of June!!! Today the despatch delivered the battery to me.. but it wasn't the one like mine..Mine was with an arm rest.. So i called Dell again and they'll replace a new one on monday..Apparently, mine is a 9 cell battery..I guess i should just extend the warranty..Just in case..hehe =)