But first to report problems: The product has in use unfortunately a design of obvious error, I would almost describe as intentional, since it unnecessarily reduces the life of the product, and thereby promotes the sale and I feel therefore be particularly negative. As can be seen in the photo is an orange button on the top. By pressing this button on the battery and the very bright flashlight is activated. Since the device comes without Behätler, this button is pressed ALWAYS when you put the device in a bag or backpack. So if you look later in the pocket is almost always blinded by the bright torch for hours the battery discharges while the battery in your pocket is transported. After a few days the battery is unnecessarily without further use to about 1 third down.
The problem arises in that the button protrudes and can be pressed easily. Maybe you could fix that by saws off the button so that it no longer protrudes. The manufacturing could solve offentsichltliche problem before production, by: slide switch, transport box or recessed keys.
What would also nocht better Währe more output settings for the power, as there are more than 3 requirements listed, eg 18.5 volts ... etc.
Now for the positive features: The battery will hold its charge long if one avoids the problem, for example, the outside clamp / connect your backpack. The battery is really handy if you forget to charge your MP3 player times before driving, or you have an urgent phone call and the phone battery is unexpectedly low. You really need to worry anymore whether any Small appliances are loaded before enough rides. The size and weight of the batteries are in order, and you can very often invite his MP3 player and cell phone with it. I had to use no problems my MP3 player while charging. My laptop battery in combination with the external battery has gehälten even longer, but I have only tried once.
It is disappointing that such a good product is devalued by a offentsichtlich and umgehbares problem.
