Revert "aaa"

This reverts commit 4eed8eb7.

python_payload/st3m/power.py

@@ -143,7 +143,7 @@ class Power:
         self._ts = time.ticks_ms()
 
     def _battery_voltage_sample(self) -> float:
-        return self._adc.read_uv() * 1.5 / 1e6
+        return self._adc.read_uv() * 2 / 1e6
 
     def _update(self) -> None:
         ts = time.ticks_ms()
@@ -186,7 +186,7 @@ class Power:
         percentage = 0
         voltage_readings = []
         for i in range(5):
-            voltage_readings.append(self._battery_voltage_sample())
+            voltage_readings.append(self._adc.read_uv() * 2 / 1e6)
 
         voltage_readings.sort()
         # take median