AIBBER TONE DC & USB Plug 4×18650 Waterproof Battery Pack Box Case House Cover for Bicycle Light Headlight


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Overview and Specifications:

100% Brand new and high quality.
Material: Plastic and metal.
Color: black.
The case can hold 4 x 18650 batteries (battery is not included)
Size:9cm x 4.5cm x 4.5cm.
Cable length: 55cm
Can be placed in four 18650 batteries to power bicycle lights. Supports rain riding, can not be used for diving.
Suit for X2, X3 bike light and cell phone
Output voltage: 8.4V, input voltage: 8.4V; Standard 5.5DC connector (5.5mm x  2.1mm), USB Output: Max. = 2A; DC Output: MAax. = 8A.
Waterproof: IPX4 
Put 4 18650 batteries (pay attention "+" "-" pole) into the case, waist the black button to make the cover fix tightly.Then connect the bike light or cell phone, it can be used.
This product is easy and convenient to use