The controls are very unclear, i had to guess that I needed to use the Q and E keys to attach and de-attach from the batteries, would be nice to have that information on this page or inside the game.
I've been unable to rotate the robot to hit certain batteries in order to stay alive aswell, i'm unsure if it's another key button i've overlooked.
With that said, the game is a good take on the theme, it's creative and you have to strategically decide how you want to move about in a level before you deattach from a battery.