Anybody here know allot about laptops?

Hey i need help, I have a acer laptop with windows vista and xp. I have had it for about 1 and a half years now and the last couple of months my sound and battery is not working. My battery has about 3 hours of life or something so when i unplug it, (when it says it is fully charged) about 3 minutes later it says i need to recharge it?????
also my sound isnt working, like when ever i turn it up to about 4 clicks i hear this really loud fuzzy sound, also when i plug my headphones in i cant hear a thing.

so whoever knows what im going through please plese tell me how to fix it.


p.s and dont say take it to a repear shop thanks.
 

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