Lift the end of the battery out first, then slide the entire battery from the phone. See Figure 2.
Battery
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Figure 2. Removing the battery There is a danger of explosion if the Lithium Ion battery is replaced incorrectly. Replace only with the same type of battery or equivalent as recommended by the battery manufacturer. Dispose of used batteries according to the manufacturer�s instructions. 5. 6. 7. To replace, align the battery with the battery compartment so the contacts on the battery match the battery contacts in the phone. Insert the battery, contacts side first, into the battery compartment and push down followed by the opposite edge of the battery. Align the battery cover to the rear housing, then slide the battery cover up until it snaps into place.