Portable Charger 20000mAh, BONAI iPhone Charger Aluminum External Battery Pack, 4 USB Output Ports(4.8A) Power Bank, High-Speed Charging Compatible iPhone X 8 7+ Plus Samsung S9 S8 iPad Tablet - Black

Bonai Backup External Battery Charger - Always support your life.

Portable handheld size and high capacity: 20000mAh Polymer Power Bank more stable and more easy to take.
Four USB Port 4.8mAh Output, you can freely charge of your iPhone iPad iPod Samsung Galaxy HTC and more devices at the same time now.

Intelligent Safety Protection - More safety
Supports over-charged, over-discharged, over-voltage, over-current and short circuit protection. Automatic shutdown if a short circuit or overload output occurred while unit is charging.

Widely Used
1) You can use the micro cable input or your own chargering cable input
2) Can charge Most popular smart phones, such as: smart phones from compatible with Samsung, Google, HTC, Huawei, Nokia, LG etc
3) Can charge Most popular tablet, such as. iPad, Kindle, Samsung Tab, Google Nexus 7 and so on

Charge the power bank:
Use the micro cable (2.0A) and your own chargering cable (1.5A) USB port to connect with your own 5V/2A wall/car adapter.
One micro cable with 5V/2A adapter: 10~12 hours to full charge
One the phone cable with 5V/2A adapter: 13~15 hours to full charge
One micro and one the other cable with 2*5V/2A adapter: 6~8 hours to full charge
Four LED Indicators on means the power bank has been full charged, then the four LED indicators will turn off in 10 seconds.

"Please charge and restart the power bank while it is under lock status or in shortcut protection by incorrect operation."
Lock Status means that can’t turn on the power with any cable, then put it away for some days, then charge the power bank again to restart.