[Dietetics]

Hey guys, In the last week or so my phone will go from showing that I have over half of my battery left and then suddenly with no warning it comes up "battery drained, handset shutting down".

Normally when that happens its because the battery is genuinely low and the battery icon goes from white to amber to red before it shuts down, but lately after minimal usage (a few texts / 1 short phone call / brief facebook time) it goes from >50% full to dead in a few hours

Has this happened to anyone else before? is it a problem with the actual battery that can be solved by a new battery or is it a more critical thing?

thanks