RE: New Fluence owner
OK, well, if you are using a full charge to do 35 miles only, then I would tend to agree that you should be thinking about asking for a battery check. However, there are settings and ways to drive the car that could bring your range down to such a low level. EVs are extremely sensitive to how you drive them and, regret to say, if you insist on accelerating at over 30kW (in the red) or you have to because you have lots of very steep inclines, then, yes, that's definitely one way to use your charge quickly.
You also say you are using AC. Now, if you set the controls to 'screen only' and run a high temperature then you can run both high powered heating and the AC at the same time, which can consume over 7kW.
If you combine that amount of AC/heat with excessive power consumption in the red, then you might well be able to draw that sort of energy out of the battery.
So really we need to see if you can get better mileage first, or whether it is driving style/heating settings. The test you can do is to try to adopt a setting that others can compare with: I suggest you do a run like this: 1) Set the controls to 19C, with just the first 'half' fan blade set (that is, slowest fan speed) and the direction control set to pointing down only. This will stop you freezing, and is generally adequate for heating, but only pulls 1 to 2 kW. If you need to demist, that's fine, just run on the screen demist button for a few minutes first, but go back to the 19C slow speed setting. 2) Drive your route and do not exceed 20kW at any time (unless you have to for safety reasons).
If you drive like this and stay within 20kW at all times (set the gauge controls to give you a digital readout of instantaneous power), you should get at least 60 miles range. If you don't then I'd say you are right to be concerned about the battery.