Vapeyaya Waterproof 8.4V Battery Pack Case(no battery included) for 4/6 x 18650 Cycling Battery Pack USB Interface for Bike Light Headlamp Cell Phone

• 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 Li-ion 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 cell 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 interface,Output voltage: 8.4V, Input voltage: 8.4V

1* Battery case for 4/6x 18650

DCH4: 4 slot 18650 8.4V output: 2A USB
DCH6: 6-slot 18650 8.4V  output: 2A USB
DCH6+ : 6-slot 18650 12.6V output: 2A USB