Not what i expected, in a bad way.
When i researched it online, the Powertraveller site claimed the max output would be 800mA.
But when i receive it i find the device itself says 500mA output, and the box it comes it has a small sticker over the output entry.
On top of that the only port on it is a micro-USB, used for both charging the batteries inside and for using it as a emergency charger. Problem is that to use it as said emergency charger, you need to use the supplied micro-AB to A cable. It looks deceptively like a USB-OTG cable, but using a normal OTG cable do not trigger the power output feature.
What i like though is that they included two AAA to AA adapters (small plastic cases the size of AA batteries) and there is a small compartment at the back housing a insert that allow the product to fit AAA batteries.