Those keychain friendly power banks provide a handy way to extend your smartphone’s battery life, but if you need more battery capacity, the Megalo Mini ultra portable charger may be a better option.
The Megalo Mini is also a keychain ready power bank that only measures 67 x 41 x 14mm and weights 47g. As shown in the images, the charger sports a low-profile, ultra compact design, and using an integrated key attachment, you can easily attach your Megalo Mini on your keychain. Inside, the portable charger comes with a built-in 1400mAh backup battery that is capable of charging your iPhone 5 up to 75%, and it comes with a hidden microUSB or Lightning cable in order that you can conveniently connect the backup battery with your smartphone for charging.
The team of Megalo Mini is raising fund via Kickstarter. You can pledge $39 to own the ultra portable charger. If you need it, jump to Kickstarter official site for more detailed description or check out the following demo video first.