Folomov USB-1834 is not only a 3400mAh long-lasting power for various 18650 flashlights but also a reliable pocket power bank. The built-in USB port has both charge and discharge capabilities. It can easily fit in a pocket/bag for outdoor carry and convenient use.
Features:
- With a Micro USB port for charge and discharge capabilities
- Pocket power bank - can be used to charge various USB devices
- With PCB protection at the anode
- With overcharge and over-discharge protection
- With short circuit protection
- Over 500 charge cycles
- With charge and discharge indicator
- Buy 1 Free 1

See in the official website: http://www.folomov.com/en/content/?137.html#