I immediately looked for a larger capacity so that I could easily charge the tablet and several mobile phones at a time. Hello, dear friends.

Power bank reviews – page [38]

The low price was also an important factor. Today I will tell you about the universal external battery for mobile devices, which will help you charge your mobile phone, tablet, audio or video player and other gadgets in conditions when the mains is not available (on the road, on a picnic, on a hike, on vacation). For example, there is such a battery (small size and weight, special case, automatic current regulation, but small capacity of 9000 mAh, only one charging port and high price). There are quite a few varieties of such batteries (they are called power banks) with different battery capacities and various additional functions. My choice was the Universal 20000mAh Dual USB Output Power Bank Battery Charger with LED Torch ($32.89) from the Chinese manufacturer ZNOOSA (I hope I got the name right) at EverBuying.com.