Add some visual effects, like speed increase and a Material change, so it is easier to tell when your Character is gaining and losing power.
(00:05) - Recap & Intro
(00:30) - Setting up the Character's Speed Properties
(05:44) - Creating the Material
(11:14) - Testing
Check out the source here, with the project available for download: https://epicgames.box.com/BatteryCollectorSource
Material Editor - How To: https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/HowTo/Instancing/index.html