Hey, my friend got the same laptop. Used it for school, but was toast in one year. I think it was mainly his part, dropped it a lot! But, I would really get it checked by Acer, because if it's still in the warranty, then why not get it fixed. Also, try doing a fresh install of Windows, and deleting any bloatware, they can really eat into a laptop's battery when running in the background. Maybe, it's a case of one of the cells on the battery going bad, in which the battery needs to be replaced entirely. They are fairly cheap used on Ebay.