THE PB12000A

Perhaps the only drawback (if you can call it that) of the PB12000A is its size (142mm length, 74mm width, 23mm height) which as you can see is quite larger than both the SandBerg PowerBar and the Antec PowerUP6000 (however that's quite normal since it has a battery twice as large).

Both sides of the device are covered with glossy plastic which unfortunately can be scratched quite easily and attracts dust (a rugged housing would be better).

You can check the current charge state of the battery with the help of 4 small blue LEDs placed on the far right upper side (in order to check the state of the battery and/or to start charging any device you also need to push the button placed right next to the LEDs).

The mini-USB charging port for the battery is placed on the opposite side.

At the top of the unit we find the 4 USB charging ports however to see the exact power output of each port you will need to turn the device over.

Each LED represents a charge of 3000mAh and so although not very accurate these can help you get a pretty good idea about the current charge state of the battery.