BLU Star 4.0 S410 C584505150L Aksberry&reg;1500mAh High Capacity Li-ion Mobile Phone Battery Compatible Model: BLU Star 4.0 S410 C584505150L Brand new and high quality battery. Integrated microchip inside prevents overcharging and lengthens battery life. Use the authorized charger only. If you don't use the battery for a long time, please put it in a dry and cool place and make it full charged once every three months.