diff --git a/Customization.md b/Customization.md
index 96a8e45..2c4b40f 100644
--- a/Customization.md
+++ b/Customization.md
@@ -18,6 +18,10 @@ The top-level `battery` object contains the custom configuration for the battery
 
 Bounds for the battery inrush current, in milliamps. The limits are expressed in the format `{"min": u64, "max": u64}`.
 
+### extra_readouts
+
+Show battery current and USB-C PD negotiated power. This is a `bool`.
+
 ## cpus
 
 ### cpus