The extended batteries are no longer as expensive as it was a few years. For less than 20 euros you can buy or bid on a different portals, the choice is now very large indeed. We already have a similar, but with more people and more devices you will not get far with a device of this type.
The RAVPower Luster 3200 mAh spare battery with LED UV light is supplied with a matching USB to micro USB cable and a user manual. The spare battery is just tight 10 cm long and fits in any pocket. Before first use, you have the battery, of course, once fully recharged. The included USB cable is connected to the battery and using small LED dots on the side of the device can recognize the charging status.
The charging process is automatically terminated and the battery is fully charged. Now, if the similar smartphone or tablet must be on the road charging, you only need the battery, closes again the USB cable to the device and the device zuladende draws power from the battery now simply and easily.
As a little extra features of this battery does not have a built-in flashlight with UV light. By the UV lamp is not as bright and thus reduces the dispersion of light, is thus it is not suitable for more distance, but (open car door, mailbox, etc.) for short distances they do just fine.
This spare battery currently costs even only scarce 15, - Euro and thus he is even in the lower price range, but this does not affect the same time on the quality. Charging is without much knowledge feasible, simply connect the device to the USB cable, the rest is done automatically. Depending on the battery of the device to be charged, the battery can fully charge about 2 devices. During the process the battery is slightly warm, but this is normally through the operating temperature. The price / performance ratio is very good, I am satisfied and can recommend the battery also.