Manuals+

Keychron K13 Max

Keychron K13 Max QMK/VIA Wireless Custom Mechanical Keyboard User Manual

Model: K13 Max

1. Product Overview

The Keychron K13 Max is a low-profile wireless mechanical keyboard featuring an 80% layout with a numpad. It supports multiple connectivity options including 2.4 GHz wireless, Bluetooth 5.1, and wired (Type-C) connections. This keyboard is designed for enhanced productivity and gaming, offering extensive customization through QMK/VIA firmware.

Keychron K13 Max keyboard overview
Keychron K13 Max keyboard with its compact 80% layout.
Keychron K13 Max features highlighted
Key features of the K13 Max, including QMK/VIA support, ultra-slim design, 2.4GHz & Bluetooth connectivity, macOS & Windows compatibility, 1000 Hz polling rate, hot-swappable option, acoustic foam, and double-shot PBT keycaps.

2. Package Contents

Ensure all items are present in the box:

  • 1x Fully Assembled Keyboard
  • 1x Type-A to Type-C Cable
  • 1x Extension Adapter for 2.4GHz Receiver
  • 1x Type-A 2.4GHz Receiver
  • 1x Switch Puller (for Hot-Swappable Version only)
  • 1x Keycap Puller
  • Additional keycaps for macOS and Windows (including Esc and Enter keys)
Keychron K13 Max package contents
Illustration of the items included in the Keychron K13 Max package.

3. Setup and Connectivity

3.1 Connecting Your Keyboard

The K13 Max offers three connection modes: 2.4 GHz wireless, Bluetooth, and wired (USB Type-C).

Keychron K13 Max connectivity switches
Side view of the keyboard showing the G/Cable/BT and Win/Android Mac/iOS switches.

3.1.1 2.4 GHz Wireless Connection

  1. Locate the 2.4GHz receiver in the package.
  2. Plug the 2.4GHz receiver into an available USB port on your computer.
  3. On the keyboard's side, slide the toggle switch to 'G' (2.4GHz mode).
  4. The keyboard should automatically connect. The polling rate in this mode is 1000 Hz.

3.1.2 Bluetooth Connection

  1. On the keyboard's side, slide the toggle switch to 'BT' (Bluetooth mode).
  2. Activate Bluetooth on your device (computer, phone, tablet).
  3. On your device, search for new Bluetooth devices and select 'Keychron K13 Max'.
  4. Follow any on-screen prompts to complete pairing. The keyboard can connect to up to three devices via Bluetooth 5.1.

3.1.3 Wired Connection

  1. Connect the provided Type-A to Type-C cable from your computer to the keyboard's USB-C port.
  2. On the keyboard's side, slide the toggle switch to 'Cable' (wired mode).
  3. The keyboard will function as a wired device and will also charge its internal battery. The polling rate in this mode is 1000 Hz.

3.2 Operating System Compatibility

The K13 Max is compatible with macOS, Windows, and Linux. It comes with keycaps for both macOS and Windows, allowing for seamless switching between operating systems.

  • To switch between operating system layouts, use the dedicated toggle switch on the side of the keyboard (Win/Android or Mac/iOS).
  • The VIA software for key remapping is compatible with macOS, Windows, and Linux.
Keychron K13 Max compatibility with Mac and Windows
The K13 Max keyboard seamlessly integrates with both Mac and Windows environments.

4. Operating Instructions

4.1 QMK/VIA Customization

The K13 Max supports QMK/VIA firmware, allowing for extensive customization of key remapping, macros, and shortcuts. You can easily customize each key using the Keychron Launcher web app.

  1. Ensure your keyboard is connected (wired mode is recommended for initial setup).
  2. Visit the Keychron Launcher web app (refer to Keychron's official website for the exact URL).
  3. Follow the on-screen instructions to detect your keyboard and begin customizing key assignments, lighting effects, and macros.
Keychron Launcher web app interface for QMK/VIA programming
The Keychron Launcher web app provides a graphical interface for QMK/VIA customization.

4.2 Backlight Control

The keyboard features 22 types of RGB backlight options (or monochrome, depending on your model). Use the dedicated function keys (e.g., Fn + Light key) to cycle through different lighting effects, adjust brightness, and change colors.

4.3 Adjustable Typing Angle

The K13 Max offers three levels of adjustable typing angle (3.37°, 4.2°, and 6.7°) to provide ergonomic wrist support. Adjust the feet on the underside of the keyboard to your preferred angle.

Keychron K13 Max adjustable typing angles
Side view of the keyboard demonstrating the three adjustable typing angles for ergonomic comfort.

5. Maintenance

5.1 Cleaning Your Keyboard

  • Disconnect the keyboard from all power sources before cleaning.
  • Use a can of compressed air to remove dust and debris from between the keycaps.
  • For stubborn dirt, gently wipe the keycaps and keyboard surface with a soft, damp cloth. Avoid excessive moisture.
  • The double-shot PBT keycaps are durable and offer excellent oil resistance for long-term use.

5.2 Replacing Switches and Keycaps (Hot-Swappable Version)

If you have the hot-swappable version, you can easily change switches without soldering.

  1. Use the provided keycap puller to carefully remove the desired keycap.
  2. Use the provided switch puller to gently extract the switch from the PCB.
  3. Align the pins of the new switch with the holes on the PCB and press firmly until it clicks into place.
  4. Replace the keycap.
Keychron K13 Max hot-swappable switches
Close-up view of the hot-swappable switches on the Keychron K13 Max keyboard.

6. Troubleshooting

6.1 Connectivity Issues

  • 2.4 GHz / Bluetooth not connecting: Ensure the keyboard's mode switch is set correctly ('G' for 2.4GHz, 'BT' for Bluetooth). For Bluetooth, ensure your device's Bluetooth is on and the keyboard is in pairing mode. Try re-pairing.
  • Wired connection not working: Ensure the USB-C cable is securely connected to both the keyboard and your computer, and the keyboard switch is set to 'Cable'. Try a different USB port or cable.

6.2 Keys Not Responding / Incorrect Input

  • Individual keys not working: If you have a hot-swappable version, try reseating the switch or replacing it with a known working switch.
  • Incorrect characters: Ensure the operating system switch (Win/Android or Mac/iOS) on the keyboard is set to match your current operating system.
  • QMK/VIA issues: If you've customized your layout, ensure the firmware was flashed correctly. Try resetting the keyboard to factory defaults if issues persist (refer to Keychron's support for specific reset procedures).

6.3 Battery and Charging

  • Keyboard not charging: Ensure the USB-C cable is properly connected and the power source is active. The keyboard charges in wired mode.
  • Short battery life: Backlight usage significantly impacts battery life. Reduce backlight brightness or turn it off to extend usage time.

7. Specifications

Feature Detail
Number of Keys 89 Keys (80% Layout)
Switches Low-profile Gateron mechanical (Red/Brown options)
Switch Face North-facing
Multimedia Keys 12
Frame Material ABS + Aluminum frame
Keycap Material Low-profile double-shot PBT
Layout ANSI
Polling Rate (2.4GHz & Wired) 1000Hz
Polling Rate (BT Mode) 90Hz
N-Key Rollover (NKRO) Yes (both wireless and wired modes)
Backlight 22 types of RGB backlight options (or monochrome)
Battery 2000 mAh rechargeable li-polymer battery
Wireless Working Time (Backlight off) Up to 154 hours
Wireless Working Time (Backlight on) Up to 80 hours
Connection 2.4 GHz / Bluetooth / Type-C wired
Bluetooth Version 5.1
Bluetooth Device Name Keychron K13 Max
Compatible System macOS / Windows / Linux
Dimension 346 x 118.5 mm (13.62 x 4.66")
Weight 600 g / 1.32 lbs
Height without keycap (front) 7.72 mm (0.3")
Height without keycap (rear) 14.7 mm (0.58")
Height incl. keycap (front) 18.2 mm (0.72")
Height incl. keycap (rear) 24.1 mm (0.95")
Typing Angle 3.37°, 4.2°, and 6.7°
MCU ARM Cortex-M4 32-bit STM32F402 (256KB Flash)
Operating Environment -10 to 50°C
Package Dimensions 39 cm (L) x 15 cm (W) x 5 cm (H)
Package Weight 1.2 kg
Gateron Low Profile 2.0 Mechanical Switch specifications
Detailed specifications for Gateron Low Profile 2.0 Mechanical Switches (Red and Brown).
Comparison of Keychron K Max, K Pro, and K Series keyboards
Table comparing key features across Keychron's Low Profile K Max, K Pro, and K Series keyboards.

8. User Tips

  • Layouts: The K13 Max comes with an ANSI layout. If you require specific regional layouts (e.g., with 'ñ' key), you may need to remap keys using QMK/VIA or source compatible keycaps separately.
  • Battery Management: For optimal battery life, consider turning off the backlight when not needed, especially during extended wireless use.
  • Customization: Explore the QMK/VIA software to unlock the full potential of your keyboard, creating custom keymaps and macros to suit your workflow.

9. Warranty and Support

For warranty information, technical support, or further assistance, please refer to the official Keychron website or contact your retailer. Keep your proof of purchase for warranty claims.