diff --git a/services/monitoring.nix b/services/monitoring.nix
index 4536612..adb6c94 100644
--- a/services/monitoring.nix
+++ b/services/monitoring.nix
@@ -132,8 +132,8 @@ let
           }
           {
             datasource = promDs;
-            expr = "avg_over_time((apcupsd_ups_load_percent / 100 * apcupsd_nominal_power_watts)[1h:])";
-            legendFormat = "1h average (W)";
+            expr = "avg_over_time((apcupsd_ups_load_percent / 100 * apcupsd_nominal_power_watts + 4.5)[5m:])";
+            legendFormat = "5m average (W)";
             refId = "B";
           }
         ];
@@ -207,7 +207,7 @@ let
         targets = [
           {
             datasource = promDs;
-            expr = "avg_over_time((apcupsd_ups_load_percent / 100 * apcupsd_nominal_power_watts)[24h:]) * 24 / 1000";
+            expr = "avg_over_time((apcupsd_ups_load_percent / 100 * apcupsd_nominal_power_watts + 4.5)[24h:]) * 24 / 1000";
             legendFormat = "";
             refId = "A";
           }