Battery

The Battery is a that stores power, increasing total power capacity.

Battery Capacity can be upgraded to allow batteries to hold 2x more power, with a cost increase of 2x.

Tips

 * Batteries are useful to storing power when power production exceeds office sell power.
 * The cost increase of upgrading office sell power is 7x, higher than the 2x cost increase of the Battery Capacity. Due to this, batteries are preferred over offices late-game as offices will eventually be too expensive to sell enough power.
 * Selling of power from batteries can simply be automated with an auto-clicker.