MinChen 8.4V Battery Pack Case for 2/4/6 x 18650 Rechargeable Battery WaterproofSafety Cycling Battery Pack Case Box Cover with DC and USB Interface for Bike Light Headlamp Smartphone(Black) - 8.4V battery case for 6x 18650

• UPC   723610199369
• 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 Material: Durable Plastic, Light Weight and Waterproof. Case Size: 9x 6.7 x 4.8cm Can load 2pc/ 4pc or 6pcs same capacity 18650 batteries into the case,easy to DIY a batteries Pack power supply for your Bike light ( no batteries included)or as a power bank to charge your smart phone in emergency. [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 Jack:the outer barrel diameter is 5.5mm, inner Dia. is 2.1mm.,Output voltage: 8.4V, Input voltage: 8.4V