Reminder:

Do not use flat-head batteries without protection board, otherwise the power box will not work, please use a pointed or PCB Protection board battery, thank you! (Battery not included)

Product Details:

1. This battery box only fit for 4.2v 18650 li-ion rechargeable battery (please use two same capacity battery for installation).
2. Connect the 8.4v charger output port to the battery box DC round port for charging.
3. Battery box round port is connected to 8.4v bike light, it could be output or input 5V USB port only for output, can connect to mobile phones and other digital products.
4. USB power supply max up to 2100mA greatly shorten charging time.
6. have overcharge, overdischarge, overcurrent three protection functions.
7. Magic strap to make installation more convenient and fastec.

Specification:

USB Port charge mobile phone faster
Model: Battery Case Box
Materia: ABS
Color: Black
Quantity: 1pcs
Waterproof: IP67
DC interface output & Input voltage: 8.4V
DC interface output current: 2000mA
USB interface output & Input voltage: 5V
USB interface output current: 2100mA
Standby current: 75μA
Size 70*102*46.2mm
Power Supply: 18650 Battery (Not Include)

Package :

1 x Battery Case Box + Magic strap
PS: (Not included Battery)