5V USB 5x18650 Power Bank for Case for w/ Digital Display Screen for Mobile
Features: sturdy and wearable plastic material, and anti-skid
Removable and Free Soldering design, powered by 18650 External rechargeable batteries, you can do it by yourself.
Accurate display of power, keep the Battery Status at any time.
Can be installed 18650 lithium Not Included)
Plug and Play, power output using the USB port, plug the data cable to achieve portable, ready to charge.