diff --git a/app/src/main/java/com/geeksville/mesh/ui/BatteryInfo.kt b/app/src/main/java/com/geeksville/mesh/ui/BatteryInfo.kt
index 95e4c91cb..67d4fed76 100644
--- a/app/src/main/java/com/geeksville/mesh/ui/BatteryInfo.kt
+++ b/app/src/main/java/com/geeksville/mesh/ui/BatteryInfo.kt
@@ -31,7 +31,7 @@ fun BatteryInfo(
         in 15..34 -> R.drawable.ic_battery_low to infoString
         in 35..79 -> R.drawable.ic_battery_medium to infoString
         in 80..100 -> R.drawable.ic_battery_high to infoString
-        101 -> R.drawable.ic_power_plug_24 to "%.1fV".format(voltage)
+        101 -> R.drawable.ic_power_plug_24 to "%.2fV".format(voltage)
         else -> R.drawable.ic_battery_unknown to (voltage?.let { "%.2fV".format(it) } ?: "")
     }
 
@@ -91,4 +91,4 @@ class BatteryInfoPreviewParameterProvider : PreviewParameterProvider<Pair<Int?,
             null to 4.5F,
             null to null
         )
-}
\ No newline at end of file
+}