オリジナル投稿者： Michael Russo ,
Replaced battery won't hold a charge
I replaced and calibrated my iPhone 4S’s battery. It easily accepts a full charge, but that full charge drops to under 50% overnight, apparently doing nothing. Can someone please lay out the potential energy-draining applications that might be the cause? Or can anyone suggest ANY other viable reason a new, calibrated iPhone battery cannot hold its charge while apparently doing nothing?