8800mAh Mobile Battery, Model number: IMB88H1W Specification ●　Battery: Lithium-ion Battery 8800mAh 3.7V ●　Input Voltage/Current: 5V/2A ●　Output Voltage/Current: 5V/2.1A ●　Charging Time: About 7 hours ●　Charging/Discharging life: 500 times ●　Operating temperature range: 0 – 45 degree C ●　compatible device: Tablet PC/Smartphone which can be charged by 5V USB ●　Weight: 303g ●　Size: 150mm x 90mm x 15mm ●　Accessory: Mico USB - USB cable ●　Manufacture Warranty: 1 year