Just A Battery

Holding a battery in the hand and right-clicking a block lets the battery push its stored energy into that block, and it can also draw energy back out. Each use of the battery in hand moves energy between the held battery and nearby energy items. The mod adds battery items that share this behavior, so a player can keep several in the inventory and choose which one to use. Mode is switched by crouching with the default shift key and right-clicking while the battery is in hand.

Players who want more capacity or faster transfer can work from the battery's values. The amount transferred depends on the battery's trace width attribute and its maximum transfer rate, and a lower value is chosen when the two sides disagree. The mod is published for Forge and NeoForge, and its behavior can be disabled inside its configuration to allow block discharge or to change what the charge-up creeper requires. The code is licensed under the GNU Lesser General Public License v3.0 only, and it is open source. Files cover 15 game versions 1.18.1 – 1.21.8, with 47.2.1 for 1.20.1 as the latest Forge file and 218.0.0 for 1.21.8 as the latest NeoForge file.