If you haven't been able to come up with a different battery other than the one you started with. 50% S, 25% Pb, 25% Sn gives you lead acid with 3% boost.
I'd give this game a max of 4 stars due to logo placement alone, and I take another star off that it doesn't auto pause when you are directed away from the game.
Coming in the next patch :) Follow fb.com/ratclicker for more news