diff --git a/README.md b/README.md
index 03ec425..fc6abcc 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,9 @@ Set charge limit for MacBooks.
 
 ## Description
 
-This utility is written in Javascript Application Scripting (or JXA) using Apple's Script Editor.
+This app modifies a parameter called `BCLM` (presumably "Battery Charging Level Max") in the SMC which limits the charge of the battery to a set value.
 
-The source code can be viewed by opening `src/charge-limiter.app` in Script Editor.
+The source code can be viewed by opening `src/charge-limiter.app` in Apple's Script Editor. It is written in Javascript Application Scripting (or JXA).
 
 The companion `smcutil` binary (located under `src/charge-limiter.app/Contents/Resources`) was copied from [this repository](https://github.com/sicreative/BatteryStatusShow/blob/master/BatteryStatusShow/smcutil/Products/usr/local/bin/smcutil). The source code for `smcutil` is also available there.
 
diff --git a/src/charge-limiter.app/Contents/Info.plist b/src/charge-limiter.app/Contents/Info.plist
index 3b0163b..daf0c58 100644
--- a/src/charge-limiter.app/Contents/Info.plist
+++ b/src/charge-limiter.app/Contents/Info.plist
@@ -25,7 +25,7 @@
 	<key>LSMinimumSystemVersionByArchitecture</key>
 	<dict>
 		<key>x86_64</key>
-		<string>10.6</string>
+		<string>10.12</string>
 	</dict>
 	<key>LSRequiresCarbon</key>
 	<true/>
diff --git a/src/charge-limiter.app/Contents/Resources/Scripts/main.scpt b/src/charge-limiter.app/Contents/Resources/Scripts/main.scpt
index c0fb0ea..fbc6a29 100644
Binary files a/src/charge-limiter.app/Contents/Resources/Scripts/main.scpt and b/src/charge-limiter.app/Contents/Resources/Scripts/main.scpt differ