diff --git a/src/power/PowerManager.cpp b/src/power/PowerManager.cpp
index 6e79e99..1f012b6 100644
--- a/src/power/PowerManager.cpp
+++ b/src/power/PowerManager.cpp
@@ -178,6 +178,7 @@ void PowerManager::updatePowerStateHandler() {
   if (PowerManager::busPowered && !PowerManager::chargingState) {
     // Calibrate voltage offset on full Battery
     PowerManager::fullVoltageOffset = PowerParameters::Battery::DISCHARGE_CURVE::VOLTAGES[0] - getBatteryVoltage();
+    PowerManager::coloumbsRemaining = PowerParameters::Battery::CELL_CHARGE_FULL_COLOUMB;
   }
 
   ESP_LOGD(TAG, "Bus Powered: %d, Charging: %d", busPowered, chargingState);