30,000mAh power bank large capacity portable powerbank with power level display

True capacity powerbank 30000mAh powerful powerbank with LED power level display.
Best practice for use.
1.After purchase use the available power completely to 0% before recharging the powerbank and then ,
2.Recharge the powerbank from 0%to full capacity 100% without charging devices during charging.
3.Once it's full use the power completely to 100% without charging devices before it's fully charged.
REPEAT THIS FOR YOUR POWEBANK TO LAST FOR LONG AND TO GIVE IT BEST PERFORMANCE,OTHERWISE YOU WILL DESTROY IT AND IT WILL NOT SERVE YOU THE BEST.
NB.IF THE POWERBANK DOESN'T CHARGE TO FULL CAPACITY IN THE FIRST FEW TIMES OF USE,DONT PANIC,GIVE IT TIME IT WILL ACHIEVE THE WORKING CYCLE.
Socket Standard Universal
Protection Over-discharging
Other attributes
Function Quick Charge Support, LED Display
Type Ultra Slim, Fast Charging, High Capacity, PORTABLE, LED Display, for outdoor
.
Battery Type Li-Polymer Battery
Product name 30000mah Power Bank
Input 5V/2A
Battery Polymer Lithium Ion Battery
Package Color Box
Capacity 3000mah
Color 4 colors
Material ABS+PC
..
Output USB Ports 5V 2.1A