Batteries are a new type of tool available in the Backdoor, they function similarly to Backpacks in that they are a 1 to 1 storage to Ghost health ratio, but unlike Backpacks, they lose charge as one attacks the ghosts. Basically, it's like the Backpacks, but the mechanics are flipped. You recharge the Battery at the Lab, and when you suck ghosts, the meter goes down on the battery. They can only be used and purchased in the Backdoor.
|Battery||Charge||Cost (Ecto Bits)|