Replaces or upgrades your faulty or damaged Sony Ericsson X10 battery. Works like the original manufacturer cell phone battery with 1500mAh Li-ion battery of capacity but at a lower cost. Stay connected with your family and friends by getting extra battery power today. This replacement battery has an integrated microchip that prevents overcharging and lengthens battery life. Best replacement for the original battery with comparable standby and talk time. - High performance and high reliability lithium battery - Perfect for replacing worn out Sony Ericsson batteries giving your cell phone a fresh start - Built-in safety and protective circuitries - Recharges with regular cell phone charger - Designed for Sony Ericsson X10