I have these and they work exactly as advertised: https://www.amazon.com/PortaPow-Specialised-20AWG-Charge-Sho...
$6/each (when you buy a pair) and they do rapid charging with absolutely no data connection. There are many other branded ones that are over-priced so avoid those and try these. If you don't want the Micro USB tips you can buy the standard USB adaptor to place inline between the outlet and your existing data cable.