[AC Question]

When i put my battery on it,for some times the CPU will start racing and my battery will start drain,the phone will off

[B. Diddy]

Welcome to Android Central! Have you tried a new or different battery as well?

Some battery stats might be helpful. Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:

1. The main Settings>Battery screen.
2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
3. The Screen category (to see total Screen On time).
4. The Cell Standby category, if present (to see Time Without Signal).


http://forums.androidcentral.com/gen...d-central.html


You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.