Wireless Technologies Li-Ion Battery for Motorola V710, E815
This lithium ion battery will provide superior talk and standby times, but weighs up to 50% less than comparable Nickel Cadmium batteries. Besides keeping your phone ultra light, this Li-Ion battery can also be recharged at any time without suffering memory effect - a condition that can diminish a battery’s performance over time.  This battery is fully comparable to original manufactured accessories making it the perfect choice as a spare or replacement battery.