Did a western Bangkok to Cha-am and Hua Hin O&A 381km round trip today in my 2023 Atto 3 Extended Range (60.5KWH battery, WLTP range 420Km.....had the EV now for 2 years 8 months / 71,178Km. On this 381km trip I used 94% of SOC...extrapolating that to 100% gives a real world range of 405km. A little short of the WLTP rating of 420km, however, I maintained speeds in the 90 to 105kmh range for a good portion of the trip plus I had the A/C set to 22C. Got up to 110kmh a few times for some short distances....but traffic just too heavy to do 120kmh except for some very short distances. On the way back to Bangkok there was "very light" rain (sprinkling) pretty much the whole distance which allowed for cooler driving without increasing rolling resistance. Since the WLTP protocol has the A/C turned off and uses average speeds slower (including slow city driving speeds) than what I drove at today I'm happy with the real-world range results today. If I had not exceeded 90kmh I'm pretty sure I would have got the WLTP 420Km rating....maybe even around 430km. In the past I've got up to 442Km real world range and exceeded the 420Km WLTP range numerous times "with conservative, ECO mode, not exceeding 90kmh"driving. But crank the speed up to around 110 to 120kmh for a good portion of a trip and the energy usage goes way up in comparison to energy usage at 90kmh....and of course the range decreases significantly. Summary: today was an overcast, cool day for driving which surely helped power usage-wise....now if I had made this trip in the Mar thru Apr time frame which is the hottest, brightest part of the Thai year I expect my real world range would have been around 10% less primarily due to the battery cooling and A/C systems working harder/using more electrons to keep the heat down.
Create an account or sign in to comment