Rays has your Back! With this Powerbank – 5200 mAh External Backup Battery to Recharge Your Gadgets on the Go! Provides approximately 2.5 charges for most phones. Four Bar LED charge indicator. Micro USB input charging port. USB output port. Cables not included. Weighs 4.9oz. Dimensions 6 1/8 x 1 1/4 x 7/8 inch. Capacity 5200mAh. Output 5V 1.5A.
Nominal voltage: 3.7v each
Capacity: 2600 mAh (Dual batteries 5200 total)
Max charge current: 1CmA (2600 mAh) each
Protection kicks in: 2.75v and 4.2v
Over-charging / Draining at 4.2v / 2.75v
Size 18.45mm x 67mm
Weight: 50.5g each