Just received my Chargery S1500 today and it is def. V2.0? I don't understand...it's going straight back and will be ordered elsewhere.

The more expensive V2 (or V2.1) version is wrongly categorised as a UPS at Digitec -> Search: OEM EP Chargery S1500 V2.0

The version where you can enter the temperature threshold for the fan. But it is also only on or off. That means it switches the second fan on above an adjustable threshold and off again below it. But it is never loud. I always need it outside on the pitch anyway, it does a great job whether it's summer or winter :)