- Introduction
- Parameter
- FAQ
What are Portable Power Banks And How Do They Work?
A power bank is essentially an external battery in a sealed case. Powerbanks come with a USB cable; you connect it to a power source such as a laptop to charge the powerbank. Some charge via flip out blades for plugging into the wall. In either case, you carry the charged up powerbank – and the cable – in your pocket, purse, backpack, briefcase or whatever and use it to charge the LED writing board.
A power bank is essentially an external battery in a sealed case. Powerbanks come with a USB cable; you connect it to a power source such as a laptop to charge the powerbank. Some charge via flip out blades for plugging into the wall. In either case, you carry the charged up powerbank – and the cable – in your pocket, purse, backpack, briefcase or whatever and use it to charge the LED writing board.
Volume |
G.W. |
Inner box size |
Lasting time after fully charged |
1800Mah |
0.25kgs |
17.9x13.2x3.5cm |
2-3hours |
3800Mah |
0.27kgs |
4-5hours |
|
6800Mah |
0.31kgs |
6-8hours |










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