Mobile Mifi (Pocket Wifi) Model Compatibility: E5577 (High Capacity Model Only) Brand: Huawei  Model: HB824666RBC Voltage: 3.8V Capacity: 3000mAh (11.4Wh) Standard: GB/T 18287-2013 Limited Charging Voltage: 4.35V Size: 65 x 45 x 4mm Weight: 75g  

SUITABLE TO USE FOR E5577S32 , NOT SUITABLE TO USE E5577C