1 files changed, 4 insertions, 2 deletions

diff --git a/firmware/powermgmt.c b/firmware/powermgmt.c
index 08f0be7d5f..8963539097 100644
--- a/firmware/powermgmt.c
+++ b/firmware/powermgmt.c
@@ -121,8 +121,10 @@ static int battery_type = 0;
 
 void set_battery_type(int type)
 {
-    battery_type = type;
-    battery_level_cached = -1; /* reset on type change */
+    if (type != battery_type) {
+        battery_type = type;
+        battery_level_cached = -1; /* reset on type change */
+    }
 }
 #endif