How do you know battery is going bad? This is the same thing that happened to my last phone. Phone goes dead, and I try to recharge. But Now I receive a blank screen with the green light. It charges for a while and then suddenly the phone comes on and sets up and the battery shows red. I turn the phone Off to charge, but about 5 min later it comes back on again then shuts down again. Its in an endless cycle. I cannot seem to charge the battery. When I got my LNR phone I had to use the old battery, but it worked for about 2 months. Now its doing it again.