Hanperal 4 X 18650 Water Resistant Battery Pack Case House Cover for Bike Bicycle Lamp;

Specification
Color:Black
Material:ABS
Can be packed into 4x18650 batteries and combined them to bicycle lights powered;
Output voltage: 8.4V; Input voltage: 8.4V;
Standard 5.5DC Interface
Cable length: 60cm;
Application Load 4x 18650 batteries
Package Included:
1 x Battery case (not included battery)
Note:
1.This item not used for charging, but just used to output power for bicycle lights or phone.
2.Designed by two wire interface, can provide power for the phone and Bicycle lights( just output power), but provide power for phone need your phone USB line to connect.
3.For more convenient to use it outdoors, you can charging the four batteries use your rechargeable charger in advance.