Practical power storage with great perseverance

Have the device can acquire on offer for almost 20 and am very satisfied.
My smartphone (OPO) and Tab (Galaxy 3) are almost 3x fully charged before the RAV need for a day at the stream.
Use the battery mainly with my smartphone on the bike and the bike as Navi and have managed not nearly him despite continuous use on a day (morning bike, moped afternoon) to unload more than 50%.

The battery weighs about 300g.
To get an impression of the size of the RAV see the attached photo (size comparison OnePlus One, RAV, tempo).

The RAV shows after one press of the power button on its battery consumption by 4 very bright LEDs.
Selbige LEDs light up even when charging the battery in sequence - in the bedroom at night that might be annoying for some who like to really dark like - just turn a good piece or put a book on it.
Charging of fully discharged battery itself takes quite a while to complete: Despite use of loading parts with more than 2A Output the complete download will take is less than 20 hours. By this you should think in advance if you need the full load times strongly.
Given the strong memory of this period is, however, entirely appropriate (my 3100mAh cell phone battery also needs approximately 5 hours for charging).

Per 2-metered sprays on the power button, the built-in flashlight is turned on.
I take not this, but it is in terms of brightness perfectly suitable for designing the night walk through the apartment without an accident, if you have something like this before.

Compatible is the battery for all devices that I've tried so far (Samsung Ativ S, Wave, Galaxy Tab 2 and 3, OnePlus One, Becker Traffic Ready, SanDisk Sansa Clip ...) - this seems the iSmart technology of the device which is to recognize the needs of connected devices, to do a good job.
Simple device via USB port infected - done.

Conclusion:
Round of good, simple and enduring power storage for all that. Away from civilization and / or power outlet not on the little technical helpers with which man so happy to do without playing around