Very good on the go

=== === Delivery

* 1 RAVPower Power Bank (model RP-PB22)
* 2 USB to Micro USB Cable
* 1 Micro USB to Samsung 30-pin adapter
* 1 Micro USB to Mini USB Adapter
* 1 bag
* 1 Manual (English, German, French, Italian, Spanish, Chinese, Japanese)

=== === Specifications

* Dimensions: 12.7 x 8.1 x 2.2 cm
* Weight: 300 g
* Capacity: 13,000 mAh
* Battery capacity: 13000 mAh
* 2 current outputs with iSmart Technology

=== === First impression

The RAVPowerbank makes a fairly stable impression. The supplied USB adapter are packed individually. The only negative thing I give the device, since it is relatively difficult.

=== === Application

The spare battery is useful to go technical devices (such as a smart phone) charge. Thanks to the bag that came with the transport is not a problem.

Once a device is connected to the spare battery, this switches on automatically and begins with the store on.

I tested the whole thing with my first smartphone. I have the right adapter selected and simply connect it to a USB port. And I had the choice between a short and a longer charging cable. Instant indicated my smartphone that it is charged and the LED indicator on the Power Bank lit up.

The LED display consists of 4 blue lights and displays the following battery levels:
* 1 lamp: 1% - 25% loaded
* 2 lamps light: 26% - 50% loaded
* 3 lamps light up: 51% - 75% loaded
* 4 lamps light up: 76% - 100% loaded
By pressing the on / off switch can learn the battery level.
With fully charged battery total of 2x my smartphone, my MP3 player and 1x 2x my Bluetooth headset could charge. I personally feel that this is a very good performance.

Unfortunately I could not charge my iPad 2, because the supplied adapter does not fit. Nevertheless, the original charging cable can be used for it.

Even a flashlight is integrated. If the on / off switch is pressed 2x, it will light up and will also be issued again. It is very bright and is sufficient for smaller distances from.

=== === Charging

The RAVPower Power Bank is simply connected using the supplied cable to a power outlet or laptop. The LED bulbs light up, depending on the charge level on all the time. When the device is fully charged, the LEDs have gone out.

When the battery power bank is completely empty, the charging process of being closed end devices take a long time. Therefore it is recommended by the manufacturer, already charge the battery when it is only half charged.

=== === Conclusion

All in all, I find the RAVPower Powerbank very good. Through the frequent use my smartphone battery does not last very long. Thanks to this device I can repeatedly charge easily back him go. The case included makes transportation easier.
Anyone who travels a lot and there will not renounce its technical devices, which I recommend purchasing this power bank. I also like the fact that two devices can be loaded simultaneously.