No-Drama Batteries in RimWorld (1.6) | Build + Wire + Battery Bank Tool
RimWorld 1.6 Battery Guide
No-Drama Batteries in RimWorld
Build a battery room that actually survives the night: unlock Batteries, wire with hidden conduits, and size the bank with the calculator below.
70 Steel + 2 Components
Hidden conduit: 2 steel/tile
Battery stores 600 Wd
Quick Solution
TL;DR
- Research: Electricity (1600) then Batteries (400).
- Build: Battery in Architect > Power after the Batteries project finishes.
- Cost: 70 Steel, 2 Components, 600 Wd capacity, 0.5 efficiency.
- Wire: put a power switch on the feeder line and use hidden conduits only inside the bank room.
- Safety: keep the room stone, roofed, and away from chemfuel; a firefoam popper is the cleanest fix.
- Starter size: 3 to 6 batteries if you are still living on solar + wind.
Battery Stat Card
| Property | Value |
|---|---|
| Research chain | Electricity → Batteries |
| Research cost | Electricity 1600, Batteries 400 |
| Build cost | 70 Steel, 2 Components |
| Capacity | 600 Wd |
| Efficiency | 0.5 round-trip |
| Rain short risk | Yes |
| Self-discharge | 5 Wd/day |
Battery Bank Tool
Use this for “how many batteries do I need overnight?” The tool shows both the strict pure-solar case and a more practical bank size after you choose your grid profile.
Strict solar math
Pure battery-only bank = ceil((Night_W * Night_Hours) / 0.5 / 600)
Practical bank = ceil(((Night_W * Night_Hours) / Planning_Factor) * (1 + Reserve%) / 600)
Overnight Need
4,000 Wd
Load × night length
Pure Solar Bank
14 batteries
Worst-case 0.5 efficiency math
Practical Bank
8 batteries
Adjusted for profile + reserve
Materials
560 steel / 16 comps
For the practical bank size
One battery stores 600 Wd and costs 70 Steel + 2 Components.
If your dawn battery level is still dropping to zero, add generation first if the bank already looks oversized for the colony.
Troubleshooting
Why did my batteries drain?
- Self-discharge is minor. If the bank empties fast, your real problem is load or generation, not the tiny idle drain.
- Phantom night loads. Coolers, heaters, benches, and turrets can spike at night when solar is gone.
- Leaky grids. One live feeder line means a distant short can still dump everything connected to it.
Charged batteries can short in rain and can explode when fire gets into the room. Keep them roofed and sealed off from flammables.
Step-by-Step: From Zero Power to a Safe Battery Room
- Unlock Techs
Research Electricity first, then finish Batteries. - Place Generators
For early colonies, solar plus wind is still the cleanest pair. Plan around 1700W peak solar and 2300W rated wind. - Build Room
Stone walls, one door, no chemfuel, and ideally a firefoam popper. A clean little bunker beats a battery line in a hallway. - Wire It Right
Run one feeder line through a switch, then convert the inside of the room to hidden conduit only. - Place 3-6 Batteries
That is a sane early-game starter if your colony is still power-light and not running a turret farm all night. - Test at Dusk
Watch the charge curve. If the bank collapses before dawn, either increase daytime surplus or add more storage.
Safe Wiring Layout
This is the single most important layout change for stopping “why did my battery room explode?” posts.
- Put a power switch on the feeder line before the bank.
- Use hidden conduits inside the battery room, not normal visible conduits.
- Keep one reserve segment switchable so a bad event cannot instantly empty everything.
Hidden conduit is tougher, nonflammable, more expensive, and the best choice inside any battery room. Normal conduit is fine outside where you need a cheap trunk line.
Layouts That Don’t Blow Up
Exact 1.6.4633 Power Numbers
Use these numbers when planning your first battery room.
| Item | Value |
|---|---|
| Battery | 70 Steel, 2 Components, 600 Wd, 50% efficiency |
| Hidden conduit | 2 Steel per tile |
| Normal conduit | 1 Steel per tile |
| Power switch | 15 Steel, 1 Component |
| Batteries research | 400 after Electricity |
These generator values make it easier to size a bank without guessing.
| Generator | Output |
|---|---|
| Wood-fired generator | 1000W steady |
| Solar generator | 1700W peak daytime |
| Wind turbine | 2300W rated, variable |
| Watermill generator | 1100W steady |
| Geothermal generator | 3600W steady |