Lift the bottom end of the battery first and then lift the battery out the phone. (see Figure 2).
Battery
1 2
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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. 4. 5. 6. 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, top end first, into the battery compartment and push down. Insert the bottom edge of the battery housing into the base of the phone, then slide the battery cover over the battery and snap it into place.