When you have fully charged the power bank, you may be smartphone (Samsung Galaxy SII) load about 6-7 times.
This power with so little weight is really unbeatable!
However, there are two points of criticism:
- It has no overview of how fully the Power Bank is yet. If you do not own "counting" can not know how much power is still on it one.
- My Nexus 7 can not be charged with the Power Bank. Why this is so, it is questionable ...
But all in all it is worth buying in any case!