External battery made available by Rav Power to test. Very compact and lightweight it holds easily into a pocket. After a full charge (about 4 hours with a non-2A plug supplied) battery allowed me to load my 2x "Sony Xperia Z3 Compact" and my tablet "Galaxy Tab2" at 70% and that halving the charge time compared grappling provided by Sony and Samsung. The battery automatically adjusts the power to the devices you connect it to optimize charge time. A blue LED lets you check the state of charge, I particularly appreciate that turn off after a few seconds. While the battery is charging you can, with a second cable to charge your phone simultaneously. The battery can also be used to create a small lamp, it is enough to connect a flexible LED lamp equipped with a USB port (To do with the pictures I joined the comment)
Too bad decision 2A is not provided but you can use the one included with your phone
Content: - Battery - USB cable - Micro USB - Manual in French
