For work in the field, for example, away from electrical outlets? In that case, your laptop battery autonomy is more important than any other properties, and charging it becomes second nature especially if you use a tablet and smartphone as well.

In this case, the Zolt is perfect for you. It's the lightest, smallest and smartest charger of the world.

It weighs no more than 85 grams, is only seven centimetres in size, and has three USB inputs, so you can simultaneously charge your smartphone, tablet and laptop. Quick and easy.

The pre-order price of 79,99 dollars is only valid till June 14, while the regular retail price will be 99 dollars or a little less than 80 euros.