Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)
Op I've tried and as easy as it is to strip it down apple hardwired the battery to the logic board. Take it into an apple store you might find they replace it for free. If they won't an out of warrenty replacement isn't overly expensive