Plug works, battery won't charge
Old battery was shutting off randomly, so I replaced it. Things were fine for a week, then when I plugged in to charge I would get a picture of a plug in the battery icon, and it would intermittently show the lightning bolt and eventually charge the battery. Now it will just not charge. The phone works plugged in. My wife's 3gs works with the same cord/charger combos.
Bad replacement battery, or a phone issue?
Is this a good question?