diff --git a/docs/docs/dev-guide-usb-logging.md b/docs/docs/dev-guide-usb-logging.md
index d0274d18..7f1fad72 100644
--- a/docs/docs/dev-guide-usb-logging.md
+++ b/docs/docs/dev-guide-usb-logging.md
@@ -12,6 +12,13 @@ If you are developing ZMK on a device that does not have a built in UART for deb
 Zephyr can be configured to create a USB CDC ACM device and the direct all `printk`, console output, and log
 messages to that device instead.
 
+:::warning Battery Life Impact
+
+Enabling logging increases the power usage of your keyboard, and can have a non-trivial impact to your time on battery.
+It is recommended to only enable logging when needed, and not leaving it on by default.
+
+:::
+
 ## Kconfig
 
 The following KConfig values need to be set, either by copy and pasting into the `app/prj.conf` file, or by running