BUILT IN MICRO USB PORT INTO THE FREAKING BATTERY!
Which means you do not need to bring a charger along to charge your battery!
Just use your Usual Phone Chargers and plug direct into the battery to charge!
18650 Rechargeable Lithium Ion for us with your compatible flashlights
Capacity: 2600mah
Voltage: 3.7 volts
- Sold by per piece
As usual, when using such high powered batteries, do ensure your flashlight is able to handle the voltage before even slotting them in.