2&times; New Battery & Universal Charger For MetroPCS ZTE Score M X500M Cricket X500 U236 High-quality and rechargeable lithium-ion cell, long conversation and standby time long working life and excellent security. Integrated microchip prevents overcharging & lengthens battery life. Capacity : 1500mAh (Charger) Charging indicator: Red LED, Full of the indicator: Blue LED (Charger) Automatic shutoff when battery is completed charged