diff --git a/bat.md b/bat.md
index 1f8bf1f..04c80dd 100644
--- a/bat.md
+++ b/bat.md
@@ -15,6 +15,8 @@ Variable | Meaning | Type | Default
 `battery` | Identifier of the battery | string | "BAT0"
 `settings` | User settings | function | empty function
 
+`settings` can be fed with `bat_now` table, which contains the following strings: `status`, `perc`, `time`, `watt`.
+
 ### output
 
 A textbox.
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