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-rw-r--r--firmware/powermgmt.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/firmware/powermgmt.c b/firmware/powermgmt.c
index 9d23c6b86f..54e7592987 100644
--- a/firmware/powermgmt.c
+++ b/firmware/powermgmt.c
@@ -240,7 +240,11 @@ static unsigned int battery_millivolts;/* filtered battery voltage, millivolts *
/* battery level (0-100%) of this minute, updated once per minute */
static int battery_percent = -1;
static int battery_capacity = BATTERY_CAPACITY_DEFAULT; /* default value, mAh */
+#if BATTERY_TYPES_COUNT > 1
static int battery_type = 0;
+#else
+#define battery_type 0
+#endif
/* Power history: power_history[0] is the newest sample */
unsigned short power_history[POWER_HISTORY_LEN];