Keybrick One

News: Keybrick One Lite + USB C upgrade + new case colors + new packaging

Keybrick One was just upgraded to have a USB C port for charging. We now have a bit of a friendlier color scheme and we added a value option dubbed “Keybrick Lite”. It comes without built-in Lithium Ion battery allowing you to add much more capable powerbanks to you builds for even longer play time. Finally, we gave an overhaul to the packaging which is now entirely made out of recycled paper.

Keybrick One & Keybrick One Lite at a glance

Keybrick One

  1. built-in high quality rechargeable Lithium Polymer battery pack
  2. Two to four hours play time
  3. can be charged while in the LEGO® Powered Up Hub
  4. Three selectable power modes
    Output voltage: 6.3V / 7.8V / 9.3V
  5. with magnetic cable tie for switching the power modes of Keybrick
  6. automatically switches on when you switch on the LEGO® Powered Up Hub and goes to a power save mode once you stop playing
  7. lightweight at just 50g (*)

Keybrick One Lite

  1. no battery inside, needs an external USB Power Delivery compatible powerbank (not included)
  2. playtime depends on your powerbank
  3. just plug in another powerbank as needed
  4. Single power mode:
    Output voltage: 8.4V
  5. automatically switches on when you plug in the powerbank and swiches off, when unplugging the powerbank
  6. very lightweight at just 20g (*), w/o powerbank

(*) that makes Keybrick together with the 23g Hub lighter than just the battery holder with six alkaline cells!

What do they have in common?

Drop-in replacement

The (rechargeable) drop-in replacement for the battery pack in the LEGO® Powered Up Hub 88009 used in many current LEGO® train sets!

Two keybricks with bottom view

More fun!

The awesome thing with Keybrick is that it won’t slow down as it discharges. Full power until it’s time to recharge!

Keybrick One left


Tired of buying disposable batteries all the time? So were we! Charge or plug in the powerbank via USB-C

Keybrick can be charged while it’s in the hub.

Stay in the original app ecosystem

Every new gadget comes with its own app, right? Not Keybrick. We figured that trying to replace the original LEGO® Hub would only hurt our main goals! That’s why Keybrick comes as a drop-in replacement for the original battery holder. Take it out, insert your Keybrick and you’re ready for hours of fun.

How does that compare to…

6x AAA Alkaline batteries
  • is rechargeable
  • doesn’t gets slower as it discharges
  • has selectable power mode
  • charges via Micro-USB
  • charges while in the LEGO® Powered Up Hub
  • long play time (similar to slightly longer than Keybrick when using high quality batteries. Models get sinificantly slower at the end though)
  • weights about 83g (~ 11.5g for per cells + 14g battery holder)
6x AAA NiMH batteries
  • is rechargeable
  • doesn’t gets slower as it discharges
  • has selectable power mode
  • charges via Micro-USB (requires special charger)
  • charges while in the LEGO® Powered Up Hub (batteries need to be taken out)
  • long play time
  • weights over 100g (~14.5g per cell + 14g battery holder)

What our Customers say

In the shop

Other things we are preparing

We have *plenty* of ideas for other products in the LEGO® Powered Up ecosystem (like that Powered Up cable breakout board idea on the left for all avid hardware hackers!)

Stay tuned (and consider subscribing to our newsletter):

What happened so far

We launched a Kickstarter campaign for Keybrick One in late September of 2020. While it didn’t reach our set target, we learned a lot. If you want to have a glance of where we come from, head over to the campaign as it’s a great place to start the discovery

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Tell me more!

We’ve built and tested numerous prototypes, shipped some to testers around the world to a point we can say that we know it’s ready for prime time!

While the pictures above are all 3D renderings which represent what we’d like Keybrick to look like in future, we do have a number of prototypes we love to show:

If you’d like to learn more about how Keybrick came into existence, read about it here:

P.S.: more prototype picture over there!

Awesome engineering.
Made in Engen.

We are proud to say that Keybrick is engineered and manufactured in Engen, Germany. Some components like the Lithium Polymer cells come from our suppliers all over the world, but the largest part of the manufacturing (electronics assembly, programming, testing, final assembly) is done in our own facilities!

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