diff --git a/app/src/main/cpp/PhoneDevice.cpp b/app/src/main/cpp/PhoneDevice.cpp
index 27bbf048..58780085 100644
--- a/app/src/main/cpp/PhoneDevice.cpp
+++ b/app/src/main/cpp/PhoneDevice.cpp
@@ -438,17 +438,17 @@ bool CPhoneDevice::QuerySystemProperties(std::map<std::string, std::string>& pro
         else if (it->first == (PROP_BATTERY_VOLTAGE))
         {
             // double val = GpioControl::getBatteryVoltage() * 3.0 / 1000.0;  // // BatVol
-            double val = -1;  // // BatVol
+            int val = -1;  // // BatVol
             char str[32] = { 0 };
             for (int idx = 0; idx < 3; idx++)
             {
-                val = GpioControl::getBatteryVoltage() / 1000.0;  // // BatVol
+                val = GpioControl::getBatteryVoltage();  // // BatVol
                 if (val >= 0)
                 {
                     break;
                 }
             }
-            snprintf(str, sizeof(str), "%.1f", val);
+            snprintf(str, sizeof(str), "%.1f", val / 1000.0);
             it->second = str;
         }
         else if (it->first == (PROP_BATTERY_CURRENT))