Blu Speed 4.7 LTE X120Q C706044200L Aksberry&reg;2000mAh High Capacity Li-ion Mobile Phone Battery Compatible Model: Blu Speed 4.7 LTE X120Q C706044200L 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.