diff --git a/adafruit_magtag/peripherals.py b/adafruit_magtag/peripherals.py
index 856976b..b37ca3e 100755
--- a/adafruit_magtag/peripherals.py
+++ b/adafruit_magtag/peripherals.py
@@ -83,7 +83,7 @@ def play_tone(self, frequency, duration):
     @property
     def battery(self):
         """Return the voltage of the battery"""
-        return (self._batt_monitor.value / 65535.0) * 2.6 * 2
+        return (self._batt_monitor.value / 65535.0) * 3.3 * 2
 
     @property
     def neopixel_disable(self):