Looking at the physical feature is has plastic finish which resembles the Danboard (Dando) box-like character head itself. The fun bit starts with the face where you have to press the mouth button to start charging your devices and the eye blinks every few seconds giving it the cute factor but double as a 3 color charge indicator. Yellow 100% to 65%, Orange 65% and below and Red under 30%. The side each output tell you the max amp output. Plus it only weighs 140grams.
The rated input is 5V at 1 amp which we gotten 1.12amp. The rated output is 1amp and 2.1 amps which we gotten 0.99amp and 1.55amp. When 2 ports are in use the max output would be also 2.08 amps. Sadly the 2.1amp port didn’t hit above 1.55amp despite test various power banks and devices, on amazon some people are reporting 1.7amp with Ipad mini. For me personally I didn’t mind the lower output I more concern on the maximum capacity I’ll get back.
Total rated capacity is 6,000mAh at 3.7v for the based battery capacity making it 22.2Wh in total
The total input: Total received is 4347 mAh at 5V or 21.74Wh converting to 3.7V equiv is 5874mAh
Total total output: Total charge is 3355 mAh at 5V or 16.77Wh converting to 3.7 equiv is 4534mAh
Based on total output against total input the actual conversion charge received is 77.18% . I set 75% as a minimum requirement and the power bank is close to it. It can charge Iphone 6 around 2.5 times.
Despite not reaching 2mps out on the 2.1amp port but the conversation is 77% so you’re get most of your charge back. Plus I am happy that I use this for more than a year now, and from my test it did degrade badly like my other cheap power banks thus the premium price and quality set by Cheero.