Features：
Plastic material， lightweight and durable
Waterproof function
Easy to use， suitable for 2 or 4 x 18650 batteries
With DC interface， Output and input voltage are 8.4V
USB interface， can charge mobile phone

Over-charge protection voltage：8.4 V
Over-discharge protection voltage: 5 V
Over-discharge protection current: 9 A
Standby current: 10 uA
USB output standard voltage: 5 V±0.2
USB max output: 2000MA

Material：Plastic
Color: Black
Weight：125g
Package Weight: 144g
Size: 45x47x88mm
Cable Length: 57cm
Strap: 41.5x3.8cm

Package Contents：
1 x Battery Case (Batteries not included)
1 x Strap