We have seen many nice ultra-portable power banks, but if you focus on high speed charging, the following LithiumCard portable charger may be more suitable for you.
LithiumCard is a portable and practical hyper charger that measures 85.60 x 53.98 x 5.5mm. As shown in the images, the power bank features sleek, ultra-slim design in order that you can conveniently put it in your pocket, bag, and even a wallet. Using its flexible micro USB connector or Lightning connector your can easily connect it with your iPhone, Galaxy S5 or other USB device for charging, moreover, its exclusive HyperFET drive technology delivers up to 2 Amps of fast and safe energy back into your mobile device for high speed charging. Apart from that, LithiumCard comes Wouk a 1200mAh backup battery, and using NanoStik technology the backup battery can be attached to your smartphone or other mobile device with ease.
At present the team of LithiumCard is raising fund via Indiegogo. Pledging $50 will let you own the high-speed USB charger. If you’re interested, jump to Indiegogo official site for more details or check out the following demo video first.