ALONEFIRE Waterproof 8.4V Pack For Led Bike Lights Headlamp T6 headlights POWER BANK for 4x18650 Battery Waterproof Pack

3 color: black/red/blue

Please tell me what you need color?Otherwise we will randomly send.

Note: this product does not include the battery.If you need a battery set, please see this link:

Tip:
 . The battery box is suitable for use in 18650 (3.7 V rechargeable lithium battery, battery pack inside to prevent overcharge discharge protection circuit regardless of the board or the battery can use the board!Battery installation note was negative direction
. When to recharge the battery pack batteries need to be 8.4 V charger output terminal is connected to the battery compartment DC round mouth can be charged!
. Battery pack round mouth connect the headlights use 8.4 V, can be output or input;USB port is only suitable for 5 v output, can charge the battery for mobile phone and other digital products!

1.over-charger protection voltage--8.4v
2.over-discharge protection vovtager--5.0v