Bike Light Batteries Pack Case, Waterproof Case for 6 x 18650, 8.4V Rechargeable Cycling Safety Battery Pack Case House Cover with DC and USB Interface for Cycling Bike Light Headlamp(Red)

The Rechargeable Waterproof 18650 Battery Case is special designed for Cycling Bike light Headlight, with DC and USB interface; DC interface is for connecting 8.4V Bike light, USB interface suitable for connecting 4.2v Bike light head lamp, or charge cell phone in emergency
Easy and convenient to use:Just Load 4-6pcs 18650 3.7v Rechargeable batteries into the case rightly and screw the cover on, then a 8.4V Batteries pack power bank are ready for your expensive Cycling Bikelight Headlamp or charge your mobile phone
Material: Durable Plastic, Light weight and Waterproof, Case Size: 9x 6.7 x 4.8cm
[Power Status Indicator Showing] Turn on the Blue Switch, 3x Blue Indicators will showing you the batteries power status inside:Three lights lit on(power≥80%). - Two lights lit on(50%≤power≤80%). - One light lit on(runtime≤30minutes, need change batteries or charge batteries).
Standard 5.5 DC interface,Output voltage: 8.4V, Input voltage: 8.4V

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