If you are an Android smartphone user and you notice your phone acting strange, it could be a faulty battery. When I had my Samsung Galaxy S2 I had frequent freezes, reboots, and crashes. I had reset the phone, but the weirdness continued. I finally took it in to a local Sprint service center. After leaving the phone with them for a couple of hours I returned to find out that my phone was just fine, but the battery was bad!

bad_battery

You know how bad canned goods swell up on top? Batteries do the same thing. When I looked at my battery it was clearly swollen instead of being flat on both sides. It may be a bit hard to tell on the photo, but the middle of this battery was clearly puffed up. This can happen to batteries over time. At that point I think I had owned my phone for over a year. This can also happen when using cheap chargers that may not regulate the power correctly and overcharge the battery. I ordered a new battery for around $20, replaced the bad one, and my problems were solved!

A Facebook friend recently experienced the same thing with her Galaxy S4.

samsung_battery

So, before you take drastic steps to reset your phone to default and/or take it in for service pop out the battery and see if it looks ok.