diff --git a/AntennaTracker/system.cpp b/AntennaTracker/system.cpp
index 679c3ddd9d..0040d4ebeb 100644
--- a/AntennaTracker/system.cpp
+++ b/AntennaTracker/system.cpp
@@ -42,6 +42,9 @@ void Tracker::init_tracker()
     AP_Notify::flags.pre_arm_check = true;
     AP_Notify::flags.pre_arm_gps_check = true;
 
+    // initialise battery
+    battery.init();
+
     // init baro before we start the GCS, so that the CLI baro test works
     barometer.set_log_baro_bit(MASK_LOG_IMU);
     barometer.init();