That being said if you wanted a wireless charger that you could take with you on the go without having to worry about cables, you might be interested in a device called the Deuce which was created by the folks at Qimini and is currently seeking funding via Kickstarter. The Deuce combines both a wireless charger and a battery pack into one.
The charger itself will feature a 2,000mAh battery that according to its creators, should be able to provide Nexus 5 owners with 50% extra battery, or around 45% for a Samsung Galaxy S5. The Deuce wireless charger will also weigh 110g and will measure 14mm thin, thus making it a highly portable device that you could slip into your pocket or bag.
The Deuce charger is also Qi-compatible, so if your handset supports the Qi wireless charging standard or if you have a Qi-compatible charging case, then it should work just fine. If you’re interested in taking a look at the project or pledge your support, be sure to head on over to its Kickstarter page for the details.