User experience improvement - app battery icon (#3979)

* 'app_battery_icon'

* Undo VS automatic modifications to this file

* 'app_battery_icon_2'

.vscode/extensions.json

@@ -6,4 +6,4 @@
         "platformio.platformio-ide",
         "trunk.io"
     ],
-}
+}

src/PowerStatus.h

@@ -59,9 +59,18 @@ class PowerStatus : public Status
     int getBatteryVoltageMv() const { return batteryVoltageMv; }
 
     /**
-     * Note: 0% battery means 'unknown/this board doesn't have a battery installed'
+     * Note: for boards with battery pin or PMU, 0% battery means 'unknown/this board doesn't have a battery installed'
      */
+#if defined(HAS_PMU) || defined(BATTERY_PIN)
     uint8_t getBatteryChargePercent() const { return getHasBattery() ? batteryChargePercent : 0; }
+#endif
+
+    /**
+     * Note: for boards without battery pin and PMU, 101% battery means 'the board is using external power'
+     */
+#if !defined(HAS_PMU) && !defined(BATTERY_PIN)
+    uint8_t getBatteryChargePercent() const { return getHasBattery() ? batteryChargePercent : 101; }
+#endif
 
     bool matches(const PowerStatus *newStatus) const
     {

variants/station-g2/variant.h

@@ -40,6 +40,7 @@ Board Information: https://wiki.uniteng.com/en/meshtastic/station-g2
 #define SX126X_MAX_POWER 19
 #endif
 
+/*
 #define BATTERY_PIN 4 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
 #define ADC_CHANNEL ADC1_GPIO4_CHANNEL
 #define ADC_MULTIPLIER 4
@@ -50,3 +51,4 @@ Board Information: https://wiki.uniteng.com/en/meshtastic/station-g2
 #define BAT_NOBATVOLT 4460
 #define CELL_TYPE_LION // same curve for liion/lipo
 #define NUM_CELLS 2
+*/