Can this keyboard be wireless?

The answer is: yes! We've made the controller hot-swappable, and we have developed a wireless controller for it. The Halcyon build guide will tell you how to install the Halcyon wireless controller and battery boards.

How is the Halcyon wireless controller powered?

Each Halcyon wireless controller powers itself through their own individual coin cell or Li-Po battery. You can connect such a battery to the battery board.

If you want to test the controllers, or want to use your keyboard without batteries, they can individually be powered over USB-C as well.

How long will my keyboard last?

The battery life can vary depending on the features your keyboard uses.

Generally, you should be able to achieve a battery life of 6 to 9 months when you are using a dongle with your keyboard. If you're not using any Halcyon modules, this can be a bit longer. We do recommend not using the RGB lighting when on battery power to pro-long your battery life.

Without a dongle the left half of the keyboard will act as a central and this half would then last 2/3 weeks. This is why a dongle is recommended for coin cell batteries.

You can use the ZMK Power Profiler to get an estimate of how long your keyboard will last on a charge.

Which batteries should I use?

Coin cell

The coin cell battery board comes with a coin cell preinstalled, so you won't have to supply anything yourself. When you inevitably need to replace the battery, please look at the replacing batteries page. The coin cell battery is not rechargeable. Our Wireless Halcyon controller is compatibly with CR1632 batteries which are 3V and non-rechargeable.

Li-Po

If you want to use a Li-Po battery, you'll need rechargeable 3.7V Li-Po batteries. We recommend using those sized 501220, however other sizes can also work.

For a full in depth on which batteries can be used and where to buy them, please see the seperate lipo batteries page.

How do you charge the Li-Po battery?

You can charge the battery using the Halcyon wireless controller and its USB-C port. It has a Li-Po charger built which charges the battery at a rate of 100mA.

When charging, be sure to switch your keyboard on. When turned off, the battery doesn't form a connection, and it then won't be able to charge. You can then also use a USB-C interconnect cable to charge the other half at the same time!