diff --git a/src/telemetry/frsky.cpp b/src/telemetry/frsky.cpp
index 2d4b2b8ef..510078417 100644
--- a/src/telemetry/frsky.cpp
+++ b/src/telemetry/frsky.cpp
@@ -678,7 +678,11 @@ void telemetryInterrupt10ms()
     current = applyChannelRatio(channel, frskyData.analog[channel].value) / 10;
   }
 
+#if defined(CPUARM)
   frskyData.power = (current * voltage) / 100;
+#else
+  frskyData.power = ((current>>1) * (voltage>>1)) / 25;
+#endif
 
   frskyData.currentPrescale += current;
   if (frskyData.currentPrescale >= 3600) {