$OpenBSD$
--- src/battery/battery.h.orig	Tue Jan 19 19:29:28 2010
+++ src/battery/battery.h	Fri Apr 16 01:40:55 2010
@@ -42,7 +42,7 @@ typedef struct battime {
 } battime;
 
 typedef struct batstate {
-	int percentage;
+	unsigned int percentage;
 	struct battime time;
 	enum chargestate state;
 } batstate;