How many pieces are in the Small Hub Battery?

Small Hub Battery contains 1 pieces.

When was the Small Hub Battery released?

Small Hub Battery was released in 2021.

🏛 SPIKE

Set #45612

Small Hub Battery

Small Hub Battery is an essential utility component for LEGO Education and Technic robotic builds.

Before you buy

Who it's for: Beginner build Educators, students, and robotics builders using the SPIKE Essential system
Build: 1 pieces · about 0.1 hours Build time is an estimate.
Price: $79.95 list price · $79.95 per piece
Availability: Retired at LEGO

★★★★☆ 4.0 AI-generated review score, not a customer rating

Users praise the convenience of in-situ micro-USB charging and reliable power delivery, though some note the high MSRP for a single-piece replacement battery.

$79.95

Check price on eBay

📝 Our Take

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

Small Hub Battery is an essential utility component for LEGO Education and Technic robotic builds. Designed specifically to power the Technic Small Hub, this rechargeable lithium-ion battery keeps robotic creations moving without the hassle and cost of constantly swapping out standard AA cells.

This component is perfect for educators, STEM students, and LEGO robotics enthusiasts. Whether you are building with the SPIKE Essential set or creating custom Technic models, having a reliable, rechargeable power source that can be charged via micro USB in-situ is a massive quality-of-life upgrade.

Skip this if you are not actively building with the LEGO SPIKE Essential system or Technic Small Hub. Since it is a specialized electronic part with no traditional building or display value on its own, standard builders and collectors have no use for it.

✨ New

Ask BlockTalk about this set

AI assistant with full set data

BlockTalk

Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Small Hub Battery - building tips, investment potential, comparisons, or anything else!

Try asking:

How long does a full charge last on the Small Hub Battery? Can this battery be charged while still attached to the Technic Small Hub? Is this battery compatible with the larger SPIKE Prime Hub? What charging cable is required for this battery?

🧱 Building Experience

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

🧩

Pieces

⏱

0.1h

Estimated Build Time

📊

Beginner

Difficulty

Build Highlights:

No-tool quick removal design
Built-in 630 mAh lithium-ion capacity
Convenient in-situ charging via micro-USB
Seamless integration with the Technic Small Hub

📈 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 specialized electronic replacement part rather than a traditional display or play set, the Small Hub Battery generally appeals to a niche market of educators and robotics hobbyists rather than traditional LEGO investors. Its secondary market value is tied directly to the lifecycle of the LEGO Education SPIKE Essential platform. While it may see steady demand from schools and STEM programs needing replacement parts as batteries degrade over time, it lacks the speculative appreciation curves seen with iconic licensed themes or modular buildings. It is a functional component best purchased for utility rather than financial return.

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

⚖ Compare Similar Sets

Unlike standard building sets, this is a dedicated power accessory. Compared to standard battery boxes that require bulky AA cells, the Small Hub Battery offers a much more compact, rechargeable solution specifically tailored for the compact dimensions of the Technic Small Hub used in SPIKE Essential.

📦 Parts Inventory

Official 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 Pack, Rec...

Part #: 66757 1× Yellow

Consists solely of a specialized rechargeable lithium-ion battery pack molded in bright yellow housing designed to lock securely into the Technic Small Hub.

🛒 Where to Buy

eBay

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💎 Notable Parts

Yellow Battery Pack, Rechargeable, for Small SPIKE Hub (1x) $45.00

Est. BrickLink Part Value

$45.00

💡 MOC Potential

🤖 Powering custom motorized Technic mechanisms and miniature LEGO rovers

🚗 Integrating remote-controlled steering and drive functions into custom MOC vehicles

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

2 videos found

BlockTalk AI

The Small Hub Battery (45612-1) is viewed neutrally within the LEGO YouTube community, often discussed in the context of broader LEGO Technic and Powered Up systems. Reviewers like RacingBrick explore its compatibility with Powered Up motors and alternative power solutions like USB rechargeable batteries, while BatteryPoweredBricks examines its use within different LEGO train control systems.

USB rechargeable battery solution for the LEGO Technic hub by Phondly

RacingBrick • 34.3K views Review

Testing rechargeable XTAR Li-ion 1.5V AA batteries + the new BC8 charger with LEGO sets

RacingBrick • 16.2K views Review

What the Community Says

2 YouTube reviews

BlockTalk AI Summary

Sariel's Bricks & Pets showcases various Power Functions tricks, implicitly including the battery hub's capabilities, while Lucas-Dynamics uses it as a starting point for LEGO Technic projects. RacingBrick points out the need for 6 AA batteries and explores USB rechargeable alternatives.

Reddit Reviews

No Reddit reviews found

YouTube Reviews

2 videos

USB rechargeable battery solution for the LEGO Technic hub by Phondly

RacingBrick

34.3K views Review

Testing rechargeable XTAR Li-ion 1.5V AA batteries + the new BC8 charger with LEGO sets

RacingBrick

16.2K views Review

Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

Inventory Statistics

Unique Parts

Official Piece Count

Cataloged Inventory Pieces

Minifigures

Inventory Version: 1

Missing a piece? Use the Missing Piece Checker.

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Small Hub Battery