MBP shuts off when using Skype

I recently downloaded skype to stay in touch with family who don't have a .mac. However, now if I'm not plug into an outlet and I use Skype, the MBP will randomly and instantly shut off. My battery displays full or near full life and I don't have this problem if I stay plugged in. I've updated all software and this hasn't resolved the problem and I don't have this problem when not using skype. Please Help

I checked the system profiler and the full charge capacity is 2657 and the cycle count is 107. This only confirmed my earlier diagnosis. The battery is failing. It is now happening when Skype is not on. I think it was just a coincidence that the problem appeared after installing Skype. I've also now noticed a bulge around the battery area and intermittent trouble with the track pad and button. I contacted Apple about the battery and was told I'd have to buy a new one. I'm only out of warranty by a few months and my battery was not part of the recall. Thanks for the help.
Message was edited by: sluey

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