How many pieces are in the 9V Battery Box?

9V Battery Box contains 1 pieces.

What age is the 9V Battery Box recommended for?

This set is recommended for ages 18+.

When was the 9V Battery Box released?

9V Battery Box was released in 1992.

🏛 Technic

Set #5115

9V Battery Box

Name: 9V Battery Box
Brand: LEGO
SKU: 5115-1

The 9V Battery Box is a foundational element of the classic LEGO Technic system.

🏆 Best For: Technic builders, restorers, and LEGO power function enthusiasts ⏱ 0.1 hr build 🧩 1 pcs

★★★★☆ 4.0

A necessary component for restoring classic Technic models, the 9V Battery Box is highly sought after by collectors. While simple, its rising price reflects its increasing rarity and importance for maintaining the functionality of older sets.

MSRP

$10.99

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📝 Our Take

The 9V Battery Box is a foundational element of the classic LEGO Technic system. This unassuming piece is the heart of many motorized creations from the 1990s, bringing life and movement to vehicles, machines, and more.

This set is perfect for LEGO Technic enthusiasts looking to restore or expand their vintage collections. Owning this battery box allows you to bring older sets back to life or power your own custom creations.

Skip this if you're primarily interested in modern LEGO sets. Newer Power Functions or Powered Up systems offer more advanced control and functionality.

✨ New

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How does this battery box compare to newer LEGO power systems? What are some common uses for the 9V Battery Box in LEGO MOCs? Is this a good replacement part for vintage Technic sets? How can I ensure the battery box stays in good working condition?

🧱 Building Experience

🧩

Pieces

⏱

0.1h

Build Time

📊

Beginner

Difficulty

Build Highlights:

Simple integration into existing Technic models
Enables motorized functionality for older sets
Durable design for long-lasting use
Essential for completing vintage Technic projects

📈 Investment Analysis

↑ Trending up since release

Investment Grade

⏳ Appreciating

The 9V Battery Box, while seemingly simple, holds decent investment potential due to its essential role in vintage LEGO Technic sets. As these sets age, finding functional replacement battery boxes becomes increasingly difficult. The rising price trend indicates growing demand from collectors and restorers. However, its single-piece nature limits significant appreciation compared to complete sets with unique elements and minifigures. Keeping it in new or excellent condition with original packaging will maximize its value.

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

⚖ Compare Similar Sets

Power Functions Battery Box

While newer Power Functions and Powered Up systems offer more advanced features, the 9V Battery Box remains essential for maintaining the functionality of older Technic sets. If you're looking to restore vintage models, this is the only option. For new creations, consider modern power systems for greater control and customization.

📦 Full Parts Inventory - 1 unique parts • 1 total pieces

Battery Box, 9V 4...

Part #: 2847c01 1× Light Gray

This set consists of a single, specialized part. Its value lies in its functionality and compatibility with vintage Technic sets, rather than its versatility for general building.

🛒 Where to Buy

Bricklink

✓ In Stock

$36.75

💎 Notable Parts

Light Gray Battery Box, 9V 4 x 14 x 4 with Dark Gray Base [Complete Assembly] (1x) $36.75

Est. BrickLink Part Value

$36.75

💡 MOC Potential

🚗 Motorize vintage LEGO trains or vehicles

🤖 Power custom-built robots with classic Technic functionality

🏙 Add automated features to LEGO city layouts

📰 Technic News

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Inventory Statistics

Unique Parts

Total Pieces

Minifigures

Inventory Version: 1

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9V Battery Box