8.4V Battery Pack Housing, with DC and USB Ports Waterproof and Safe Battery Pack Housing, Suitable for 2/4 x 18650 Rechargeable Lithium-ion Battery Bicycle Lamp Headlights and Mobile Phones

Product name：8.4V Battery Pack Case. Material:Plastic+metal. Color:Black. Size: 9.0x5.7x4.4cm. Cable length: 37cm. Input: DC 5.5mm x 2.1mm 8.4V. Output 1: DC 5.5mm x 2.1mm 8.4V. Output 2:USB 5V-Max 2000mA. Notice:When installing the battery，Please install according to the mark Avoid damaging the battery box by reversing the polarity Package includes: 1 X Waterproof 4x 18650/26650 battery box case.(without battery )

• 4x 18650 battery rechargeable waterproof case with DC and USB ports; DC port is used to connect charging or 8.4V bicycle lights, USB port is suitable for connecting 4.2V bicycle lights or charging mobile phones (designed for bicycle headlights)
• 8.4V DC 5.5mm x 2.1mm input and output, 5V is USB output, USB output current: 2000mAh, the power switch only controls USB5V power supply
• It can be used with 2 or 4 18650 3.7v rechargeable lithium-ion batteries of any capacity
• power status indicator shows 3 green indicator lights to show the battery power status: three lights are on (power ≥80%). 2 lights are on(power ≥50%). 1 light is on and flashing (operating time ≤ 30 minutes, the battery needs to be replaced or recharged).
• It is most suitable for 8.4V, 1000mAh charger, the battery box indicator does not work when using the charger.Velcro makes installation more convenient and quick