diff --git a/src/com/android/settings/fuelgauge/PowerUsageSummary.java b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
index 880255b212c..b0ab5ee8bca 100644
--- a/src/com/android/settings/fuelgauge/PowerUsageSummary.java
+++ b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
@@ -291,6 +291,8 @@ public class PowerUsageSummary extends PowerUsageBase implements OnLongClickList
         switch (item.getItemId()) {
             case MENU_STATS_TYPE:
                 if (mStatsType == BatteryStats.STATS_SINCE_CHARGED) {
+                    // TODO: STATS_SINCE_UNPLUGGED is deprecated in Q, so this accomplishes nothing,
+                    // but mStatsType doesn't seem to be hooked up to anything anyway.
                     mStatsType = BatteryStats.STATS_SINCE_UNPLUGGED;
                 } else {
                     mStatsType = BatteryStats.STATS_SINCE_CHARGED;