You can find out many useful power bands via our posts, but if you need to more clearly know the battery’s status, the following Legion backup battery with OLED display may be more suitable for you.
The Legion is a versatile portable power bank that comes in two battery capacities including 5500mAh and 11000mAh. As we can see from the images, the backup battery features sleek, portable and modern design in order that you can easily take it with you anywhere, while using built-in 5500mAh or 11000mAh backup battery you can conveniently charge your smartphone, tablet or other mobile devices on the go. Most importantly, the backup battery also features a built-in Organic LED display coupled with a microprocessor that shows you more precise info about the backup battery such as the percent charge remaining, the actual capacity remaining in mAh, the amount of time remaining until Legion becomes empty, and more. Apart from that, the power bank ships with a waterproof carrying case and a retractable USB charging cable.
At present the inventor of Legion backup battery with OLED display is raising fund at Kickstarter. Pledging $59 will let you own the backup battery. If you’re interested, jump to Kickstarter official site for more details.