Strong battery and good workmanship.

As the battery power of DEFYS has often not been enough for my applications (much by GPS Geocaching), I have decided for the external battery. The device is extremely versatile, any USB-chargeable device can be supplied with power. A complete charge cycle on Defy (from 15% to Full.) Only takes about an hour, as at the outlet also. I was able to perform the first operation 2 full charge cycles, so it is known that the capacity after the first charge cycles is still increasing. So I expect 2.5 to 3 Defy charge cycles when the battery has been charged a few times.
Darüberhinausist the battery is lightweight (weighs again as much as the Defy) and provides high quality made, just like the USB adapter cable. The only drawback is perhaps the extremely long loading time of xternal batteries themselves. But me do not mind that because I anyway boot him every or at least every 2 days overnight. All in all a buy recommendation !! Super device at an affordable price.