diff --git a/api.js b/api.js
index d61a976..dd12ca2 100644
--- a/api.js
+++ b/api.js
@@ -272,8 +272,8 @@ AirtouchAPI.prototype.connect = function(address) {
 		// request information from Airtouch after connection
 		setTimeout(this.GET_AC_STATUS.bind(this), 0);
 		setTimeout(this.GET_GROUP_STATUS.bind(this), 2000);
-		// schedule group status every 5 minutes to get updates for FakeGato history service
-		setInterval(this.GET_GROUP_STATUS.bind(this), 300000);
+		// schedule group status every 4.75 minutes to get updates for FakeGato history service
+		setInterval(this.GET_GROUP_STATUS.bind(this), 285000);
 	});
 	this.device.on("close", () => {
 		this.log("API | Disconnected from Airtouch");
diff --git a/index.js b/index.js
index 20ea5ff..d83c068 100644
--- a/index.js
+++ b/index.js
@@ -225,6 +225,7 @@ Airtouch.prototype.setupACAccessory = function(accessory) {
 	thermostat.isPrimaryService = true;
 
 	accessory.historyService = new FakeGatoHistoryService("thermo", accessory, { storage: "fs" });
+	accessory.historyUpdate = 0;
 
 	this.log("Finished creating accessory [" + accessory.displayName + "]");
 };
@@ -259,12 +260,16 @@ Airtouch.prototype.updateACAccessory = function(accessory, status) {
 	thermostat.setCharacteristic(Characteristic.RotationSpeed, accessory.context.rotationSpeed);
 
 	// save history as Eve Thermo
-	accessory.historyService.addEntry({
-		time: new Date().getTime() / 1000,
-		currentTemp: accessory.context.currentTemperature,
-		setTemp: accessory.context.targetTemperature,
-		valvePosition: accessory.context.rotationSpeed
-	});
+	let now = new Date().getTime() / 1000;
+	if (now - accessory.historyUpdate > 285) { // 285s = 4.75 min update intervals
+		accessory.historyService.addEntry({
+			time: now,
+			currentTemp: accessory.context.currentTemperature,
+			setTemp: accessory.context.targetTemperature,
+			valvePosition: accessory.context.rotationSpeed
+		});
+		accessory.historyUpdate = now;
+	}
 
 	accessory.context.statusFault = status.ac_error_code;
 	thermostat.setCharacteristic(Characteristic.StatusFault, accessory.context.statusFault);