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-rw-r--r--firmware/powermgmt.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/firmware/powermgmt.c b/firmware/powermgmt.c
index 08f0be7..8963539 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