Never be without the phone again as you can charge it on the go - so easy. Any portable device that has a USB charging cable can be charged withit.
To charge the device I found it quicker to use a tablet charger with a higher output, and used the adaptor cable provided - it worked fine. Best left to charge overnight. If completely flat might take longer.
This device is well worth the investment and very high value for money. Dont leave home without it!!!