Mine turning on itself by charging it.
But I found this on motorola site.
this is from tip and trick for droid PDF file.
Train your battery
Train the battery by fully charging it and draining the
battery until it shuts off.
1. With the device turned off, fully charge the
battery until the LED no longer flashes and
2. Let the battery charge for an additional TWO
3. Repeat the process again (perform twice in a
row) and you should experience improved