Redmi Lithiumpolymer 10000 Mah Fast Charging Slim Power Bank (Black, 10W Fast Charging, Dual Ports)

Capacity: It will charge a 3000mAh phone battery 2.1 times & It will charge a 4000mAh phone battery 1.75 times
Output: Double USB output 5.1V/2.6A 10 Watts Fast Charge (Intelligently adjusts power output up to 10W to deliver fast & efficient charging for each connected device)
Body Material: Plastic | 246.5 grams