This power bank is simple to understand and use, and comes with a clear instruction manual. It has 4 blue LED lights that indicate about a 25% charge (see picture). It comes with a USB cord to charge the power bank. It takes about 9 hours to charge completely. When it's charged, the blue LEDs will turn off and the power supply is shut off to prevent overcharging. Likewise, when you use this power bank to charge your device(s), the LEDs will turn off when it/they are completely charged.
A nice feature about this power bank is that it is capable of charging up to 3.2A. This is more than sufficient for fast chraging all phones on the market (if your phone allows for that capability) and all iPads/tablets. iPads generally charge between 2.1 and 2.4A for reference. Each phone on the market charges at a different rate. Generally, this is 1.0A, but many newer ones can charge faster. This charger recognizes that and can supply the maximum power your device allows. Without getting too complicated, this is sufficient for most anything you'll charge.
Overall, I'm very pleased with this power bank. It has sufficient capacity. It can charge your device as fast as it's capable of charging. I see no downsides. I have no problem recommending it!
FEDERAL TRADE COMMISSION (FTC) DISCLAIMER:
I received this product for free. However, the opinions expressed herein were formulated based on my personal use of the product. I welcome all suggestions, feedback and/or product questions!
Available HERE on Amazon