Install Your Razr's Battery

Steps

1. Look at the back of the Razr.
2. Press the battery tab. Located on top.
3. Insert your Sim.
4. Insert your battery.
5. Put it to Charge.
6. The next day try to put it to charge when you are not using it.
7. Continue normal use.
8. At the next day use your phone and charge it when you please.

Your phone will achieve maximum performance after 5 days of continuous charging.