I've had my EVO for over a year now, without having any major problems. Now my battery charges for 1-10 min then stops. I've tried different chargers, phone on & off, with no luck. Sprint tested the battery and said it was good. When it stops charging most often it shows an ! in the battery level indicator. Anybody else have this problem? I'd hate to have to spend hours at the local Sprint store, the customer service there sucks, & I'm not sure of their competence.

It means that the battery is no longer communicating with the phone correctly! You should try charging the battery with the phone off. If it keeps happening the battery may be faulty and you have to replace it.

I've tried different chargers, phone on & off, with no luck.