When using the battery, activate Energy Saver Mode for extended runtime.
Energy Saver Mode
1) Download and install Control Center from Elgato.com.
2) Open Control Center and navigate to the settings for Key Light Mini.
3) Once in the Settings for Key Light Mini, enable Energy Saver Mode by clicking "When battery level falls below."
4) Once Energy Saver Mode is enabled, you can adjust the Energy Saver Mode options.