New Dolphin Surf - But only 50% of the actual range?

Same for me :/ (In Germany when it was around 0°C, at 120km/h, Eco and Full Regeneration)

Where do you live (are there many hills, is it very cold/hot, is it very windy)? How fast do you usually drive on the highway? The main problem I see is not a maintained velocity, but continuous acceleration not regenerated (highway problem)... If you use air conditioning or there are ups and downs in the way... There you go. If not, you must visit the dealer

Also losing around 50% of the battery’s total capacity?

It's not specifically the Capacity, it's more about the Consumption. At cold weather the Car just has a higher Consumption, especially when you have the AC turned on. When driving on the Highway/Autobahn I sit around 20-22kwh/100km.

1 liter of petrol has around 9-10 kWh of energy You drove 100km for the equivalent of 2l of fuel!  Just think how inefficient cars are if they use 10l/100km (23 mpg in US).

Stated in the post, i live in Denmark. Denmark is flat as a pancake 😂 I just set it to 110-115 km. The weather is dynamic. All your questions are actually in the original post :)

Sounds normal to me. The published range is based on standards that are impossible to achieve in the real world. Useful for comparing one car to another, but pointless for understanding real-world range. What matters is your energy consumption in your typical driving conditions. I have an Atto 3 and on a straight highway at 110km/h I get about 22 kwh per 100km consumption. That gives me about 300km on a full battery. And that's absolute max, so in reality I do about 250-280km between charging stops. However if I've got country roads or long straights with no traffic lights at 80km/h I get about 12kwh / 100km - which would give me a theoretical max range of nearly 500km. So worse case performance is around 40-45% of best case performance. Which sounds like what you're seeing as well. Here in Australia they call it the Atto 1 - but I estimated the highway range of the base model to be around 160km when it launched and I was looking at the specs for curiosity. Edit: Forgot to say, 'eco' mode won't really make a difference. All it seems to do is modulate the throttle response so you take off slower. It can save you from yourself if you have a lead foot in stop/start traffic. But if you've spent most of your journey at 110km/h on a freeway then the drive mode won't be making any difference to that.

The beautiful is that normally it's even less! In the Summer it's probably gonna be like 18-19kwh/100km. One should keep in mind that it is a very little car made for fun and City traffic :)

Might be worth checking if faulty, I'm getting equal or better advertised range on mine, even with highway driving and hills etc. Not cold here yet though.

What is your typical operating temperature? Highway driving consumes more power from electric vehicles (80 km/h is the most efficient speed; you can try driving at 100 km/h).

same here in China, it is quite normal and it is because the electricity consumption goes up much higher in winter when the AC is on

Too bad electricity is more expensive than fuel.  The 18 kWh you mentioned costs about 15-20zł charging at home and 40zł fast DC charger in Poland.  My old car was 5l/100km which cost about 30zł. It only makes sense if you've got solar cells on the roof and a battery.

Not in Western Europe countries, to drive 100km with 20kWh use it cost around 2 EUR from home power plug, 9zl / 100km - it's equal to 1,5 l fuel, insanely cheap so if it takes 20, 30, 35 kWh practically doesn't matter. In September I've had an average cost for 1kWh 0,1 eur - 10 eurocent - 40gr / 1kWh from normal home power plug.

It's normal, maybe next time chose your car more carefully - with bigger battery, I've bought mine with 82,5kWh battery for some reason. ECO mode in BYD gives practically no savings, don't use it as it turn the car into a super slow responsive turtle. Just charge the car when needed and accept the winter issue.

Keep your advices to yourself, you know how big mess it is on highways when trucks overtaking personal vehicles :D

I’ve heard that the wltp range assumes mixed highway and start/stop driving

Weather will always have an influence on real range. The WTLP range is based on the most-ideal conditions, which aren’t always going to be achieved in real world usage, especially if you get frequent cold winters.

Well, I tought it would go at least 250 km, which would be sufficient. I’ve heard that winter has a big impact, but it has been 20* differences from October till January, but the consumption has been the same. That’s what confused me🥴

Have you recalibrated your battery recently? LFPs have a very flat charge curve, so it’s easy for the car to know when it’s 90-100% and 0-100% but not anything in between because the voltage drop is minimal anywhere else. That’s why BYD and other manufacturers recommend you slow charge the battery from ~10% all the way to 100% in a single charge periodically. That way, the BMS can check how much current went in to recalibrate the battery SoC. Failing to do so doesn’t degrade the battery, but it means the car can’t estimate its SoC properly.

The wierd thing is that you wrote: "My parents live 90 km away, and i use about 50-55% driving there, whether it was october where the temperature was about 10-15\* celcius, or in january where we had -5\* (Living in Denmark)." becausethere should be a huge difference due to temperature. When it is -1 degree my range on highway is 300km, by +10 degrees it's 400km (33% more), might have been the wind? And as i wrote - maybe don't use ECO mode (analyze it), in my case it takes more energy in ECO mode than Normal because there's so huge acceleration lag in ECO mode that i was pressing the "gas pedal" very hard and i was using more energy than in Normal mode pressing the "gas pedal" slightly. Also - the ECO mode saves only like 1% battery for 100km if somebody drives slowly, so practically nothing for such an inconvenience.

If I may chip in, try highway driving between 80-90km/h. Coming from aviation myself, drag increases by the power of 4 with speed. So for every 10km/h increase in speed your air resistance increases by 4 times as much. So yes unless you're in a rush or in no worry about recharging, going a bit slower gives you more range. 110km/h is the absolute limit when it begins to get exponentially higher drag. It's counterintuitive but, EVs are so efficient that any difference in driving habits, be it speed, throttle, ac use, regen etc, have a huge impact on consumption. ICEs on the contrary waste so much energy, around 80%, that an increase in speed is almost negligible, around 4%. What is 4% when you're already wasting 80%? So for very energy efficient vehicles, every detail counts. I find it easier to think on opposite terms. Instead of the theoretical max range, think of the baseline "wasteful" range. For instance if the max range for the Surf is 320km, multiply by 0.6. Now it's 192km. Work from 192km knowing you can increase that up to 320km if you become more efficient in driving habits.

Yeah it does. But they don't actually get out there and drive. Just spin the wheels at different speeds until the battery drains. NEDC seems wildly optimistic, achievable only in perfect and unrealistic driving conditions. WLTP is "optimistic". Achievable but still too high for regular city driving. I'm mostly basing on my experience with the Atto 3. NEDC is 480km, WLTP is 420km. My lifetime average consumption is about 16kwh / 100km, which gives me 375km if I fully drain the battery.

>NEDC seems wildly optimistic, achievable only in perfect and unrealistic driving conditions. WLTP is "optimistic". Achievable but still too high for regular city driving. It's not even that. The biggest issue is that people only really start to compare distances when cruising, and those tests don't give reasonable numbers for cruising. It would be great if car companies could give estimations for cruising at 100km/hr at 20⁰C or so. Give people an idea of how far their car can get when going on a holiday.

Also. Dont use AC but gloves and winter hat :) just do seat heating. Will get u further also :) But yes. Same for my dolphin with range. So looks like normal to me

This guys drags! But please don’t do it behind lorries/semi. It’s very dangerous and very annoying for the other driver. Extremely rude.