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Classic 9V Battery Box

Bring your vintage LEGO Technic creations to life with this essential power component from 1995!

LEGO Battery Box with Switch - 9v set 9831 - 1 pieces, Technic theme, product photo Pin It
LEGO Battery Box with Switch - 9v set 9831
🏛 Technic
Set #9831

Battery Box with Switch - 9v

The Battery Box with Switch - 9v is a crucial component for LEGO Technic enthusiasts.

Before you buy

Who it's for
Beginner build Technic builders looking to add or replace a power source
Build
1 pieces · about 0.1 hours Build time is an estimate.
Availability
Likely retired
★★★★☆ 4.0 AI-generated review score, not a customer rating

Fans appreciate the simplicity and reliability of the 9V battery box, essential for powering older Technic models. It's a sought-after replacement part, though newer power systems offer more features.

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📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

The Battery Box with Switch - 9v is a crucial component for LEGO Technic enthusiasts. This simple yet essential piece allows builders to power their motorized creations, bringing them to life with movement and functionality.

This set is perfect for those looking to add power functions to their vintage LEGO models. As a single-piece set, it requires no building, simply integration into existing Technic builds.

Skip this if you're exclusively interested in display models or sets without motorized functions. Consider investing in newer Power Functions or Powered Up systems for more modern control options.

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Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Battery Box with Switch - 9v - building tips, investment potential, comparisons, or anything else!
Try asking:
How does the 9V Battery Box compare to newer power functions systems? What types of LEGO models can be powered with this battery box? How long does the battery typically last during continuous use? Is this battery box compatible with all 9V LEGO motors?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI
🧩
1
Pieces
⏱
0.1h
Estimated Build Time
📊
Beginner
Difficulty
Build Highlights:
  • Simple integration into Technic models
  • Enables motorized functionality
  • Durable construction for long-lasting use

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI
Not enough price history for a trend
C+
Investment Grade
⏳ Retired
As a retired Technic component, the 9V Battery Box with Switch holds some investment potential, particularly for collectors focused on vintage LEGO power functions. Its value is tied to the demand for older Technic sets and the need for replacement parts. While not a high-return investment, its practicality and the increasing scarcity of 9V components could lead to gradual appreciation. However, the introduction of newer power systems might temper its growth potential.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

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This battery box is a foundational element of the older 9V Technic system. Newer systems like Power Functions and Powered Up offer more advanced features like remote control and programmable functions, but require different motors and connectors. This box is best suited for maintaining or expanding existing 9V-based models.

📦 Parts Inventory

Piece count
1
Parts cataloged in this inventory
1 unique parts, 1 pieces

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Battery Box, 9V 4 x 14 x 4 with Dark Gray Base [Complete Assembly] Battery Box, 9V 4...
Part #: 2847c01 1× Light Gray
This set contains a complete battery box assembly. Due to the single part, it's primarily valuable for its functionality rather than its individual brick components.

🛒 Where to Buy

BrickOwl
✓ In Stock
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$6.73
BrickRanker
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💎 Notable Parts

Light Gray Battery Box, 9V 4 x 14 x 4 with Dark Gray Base [Complete Assembly] (1x) $6.73
Est. BrickLink Part Value
$6.73

💡 MOC Potential

🚗 Integrate into custom motorized vehicles
🤖 Use in robotics projects and custom mechs
🏙 Power functions for LEGO city trains and moving displays

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Charts Inventory Statistics

1
Unique Parts
1
Piece Count
1
Cataloged Inventory Pieces
0
Minifigures
Inventory Version: 1

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