diff --git a/.local/bin/set-battery-threshold b/.local/bin/set-battery-threshold
new file mode 100755
index 0000000..40774ae
--- /dev/null
+++ b/.local/bin/set-battery-threshold
@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# https://www.coreboot.org/Board:lenovo/x230
+
+usage () {
+	echo "usage: $0 start_threshold stop_threshold"
+	exit 1
+}
+
+if expr "$1" : '[0-9][0-9]*$'>/dev/null; then
+	start_threshold="$(printf '%x' "$1")"
+else
+	usage
+fi
+
+if expr "$2" : '[0-9][0-9]*$'>/dev/null; then
+	stop_threshold="$(printf '%x' "$2")"
+else
+	usage
+fi
+
+ectool -w 0xb0 -z "$start_threshold"
+ectool -w 0xb1 -z "$stop_threshold"