Battery Box (GregTech 4)

The Battery Box is a machine added by GregTech 4. It can store Energy Units (EU), and it has four slots that will charge batteries placed inside it, pulling from the Battery Box's internal energy. The Battery Box can store 10,512 EU and can only input and output up to 32 EU/t. For more input or output, it can be upgraded with a Transformer Upgrade.