Battery Box

Battery Box

Put battery or capacitor items into this block, to distribute their power in block form.

by
1.2K Downloads
forgeneoforgetechnology
Rent Server with this Mod

Screenshots

Single empty battery box
Room full of filled battery boxes
Low battery box with tooltip

About this Mod

Battery Box

Support

Version Modloader Support-Status
1.21.8 NeoForge
1.21 NeoForge ⚠️
1.20.6 NeoForge ⚠️
1.20.4 NeoForge
1.20.1 Forge

⚠️: bug fix only

About

Battery box is a "Mini-Mod" that does one simple thing, it adds a block that can hold a battery!
Pairs perfectly with Just A Battery, but should work with other mod's battery cells as well!

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Mod coding by canitzp
Assets and Idea by Jadan1213

Usage

Using the Battery box is simple, just connect it in-line between an RF power source and whatever you're powering.
You can insert a battery by holding the item and right clicking on the block, shift right clicking will remove the item.

The rate of power flow into and out of the battery is regulated based on the RF transfer rate of the battery, and the pipes/energy cables you're connecting to it. You can hook up the Battery box from any side of the block.

This is great if your power usage temporarily exceeds your power generation capabilities, as the Battery box
will provide the power your devices need and recharge when excess power is available.

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The block will provide visual feedback of its charge level both with color, and with lighting. The higher the battery charge, the brighter the light!

No Battery Empty charge Low charge Medium charge High/full charge
2024-05-24_16-16_Capture_541 2024-05-24_16-14_Capture_540 2024-05-24_16-14_Capture_539 2024-05-24_16-13_Capture_538 2024-05-24_16-13_Capture_537

Battery boxes can share their battery's charge with adjacent blocks, even other Battery boxes! How fast that energy is transferred/leveled out will depend on the battery's max transfer speed.

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While this will allow you to chain multiple Battery boxes together, Keep in mind, that energy will only flow into, and out of, a connected Battery box. If no battery is present in the connected Battery box, no energy will flow!

No flow Flow Single input/output Single input/Different output Multiple input/Multiple output
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As a bonus, You can use a battery box to charge items too! These items however will not provide power to connected devices. They can only be charged.

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Battery box is great for prividing extra power to hungry devices and storage systems when needed!

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Tested to work with
Just a battery Thermal series Flux capacitor
Powah! batteries & Energy cells Mekanism energy tablet

If you experience any issues or incompatabilities, please open an Issue!

Available Versions

Battery Box - 218.0.0 (for 1.21.8)release
MC 1.21.8neoforge
October 1, 2025
Battery Box - 210.0.0 (for 1.21)release
MC 1.21, 1.21.1neoforge
June 18, 2024
Battery Box - 206.0.0 (for 1.20.6)release
MC 1.20.6neoforge
May 30, 2024
BatteryBox - 201.0.1 (for 1.20.1)release
MC 1.20.1forge
May 27, 2024
Battery Box - 204.0.0 (for 1.20.4)release
MC 1.20.4neoforge
May 27, 2024

How to Install Battery Box on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.8).

3

Install Mod

Open the mod browser in the dashboard and search for "Battery Box". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forgeneoforge

Minecraft Versions

1.21.8, 1.21.1, 1.21 (+3 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Battery Box server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.8). You can switch loaders with one click in the panel.

Is Battery Box compatible with forge and neoforge?

Battery Box officially supports forge, neoforge for Minecraft 1.21.8, 1.21.1, 1.21. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Battery Box – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Battery Box consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Battery Box with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU Lesser General Public License v3.0 only
Server-side
Required

Supported Versions

1.21.81.21.11.211.20.61.20.41.20.1