Checked the prices. 20000mAh powerbank 20eur, male microusb / female usb cable 5eur, china copy of intel stick 100eur. The proper stick is pricy. Not sure if I should just by the older stick with ubuntu 14 on it but it has only 1,4 ghz processor and 1Gb ram. But would get with 50 eur and cause this is just an experiment would really want to get everything under 100eur. Also there's a big difference with the weight of the powerbanks. N900 150g and lightest capasity powerbanks at least 250g, normal weight about 400g which is too much.