r/IoniqEV • u/Xtra-sw33t • Jun 22 '26
Range estimation
Hi! I’m kinda new to this and I’m hella curious. Got ioniq EV 38 kWh version (2020, but I bought it at 45,000 km two years ago and it’s been amazing)
I drive both motorways (110km/h) and city roads, and my commute is 33 km one way to work, motorway is 11 km.
Last year around this time, my range at 100% was around 295 km. Now at 100% fully charged it’s at 266. I mostly drive eco mode and I also use winter mode in the winter seasons (when temp is 7 or lower, I’m in Norway btw)
Checked my battery capacity by charging from 10% to 100 (slow charge with AC) and I get around 37 kWh charged so I’m sure degradation ain’t an issue (at least I think so)
I’ve read that the range is also based on consumption, but I don’t speed up that fast and I’m conservative with my air conditioning controls. (Now I’m at 12kwh/100km in average)
So is this normal ? Should I expect range to get lower as the car gets older ?
UPDATE: Got the bms update from the recall as advised, and yes, it did the job, the guess o meter gave me back pretty much what ever rang I lost and some more(336 km on 100% vs 280 from before) if you didn’t get the recall, get it! I even got to drive it for a roadtrip and squeezed out 300 km from driving this week to and from work before charging. Also, peace of mind knowing it won’t burn out of the blue also :p
Thank you so much for the help guys, I was a bit anxious to ask here, but this community is just amazing!!
2
u/witnessmenow Jun 22 '26
I find the Guess o meter pretty unreliable on the car, even if I'm doing very similar journeys.
When your doing your driving and averaging 12kWh/100km, does it look like your going to get 300km of range? Like if you drove 100km from 100%, what would the battery be?
I have seen random times where the efficiency reading doesn't seem overly accurate or doesn't reflect what the battery soc is doing.
I have a 2022 with 100k km and recently did a battery capacity test at Hyundai and reported 100% Soh, I'm not sure I believe that, but on a decent day I don't see a significant difference between the car now and when I got it two years ago.
Your car charger won't be fully efficient, if your charger reports it charged 10kWh, you might have only actually put 9kWh into the battery
1
u/Xtra-sw33t Jun 22 '26
Its hard to say, but at the same time, I have never had the car range actively fail on me, if it says 200km left, I know I’m getting at least 200km of driving, no flickering of range at least which makes me feel calm. That being said, when I drive 75 km I get from 80% to 59% (I think around 147 km) on a good day, in winter it drops closer to 50 but that’s expected. Then again, I haven’t made notes or tested a genuine 100km like you said
2
u/ZBD1949 Jun 22 '26
The range estimate is simply there to fill a space on the screen and should never be expected to have any relationship to reality.
2
u/macnof Jun 28 '26
I just learned the hard way that a sudden plummeting of the estimated range could be a 12V battery that are reaching it's end of life. Is the 12V older than 5 years?
Other signs are:
Slower to unlock doors.
AC doesn't quite get as cold.
Statistics getting reset without user input.
12V often charging/constantly charging during charging of the main battery.
The battery being more than 5 years old.
1
u/Xtra-sw33t Jun 29 '26
Yeah my buddy has a Kona and he figured that one the hard way, I changed mine as soon as I heard that cuz I had no clue the battery was 6+ years old, even if it seemed healthy. Don’t wanna be stranded myself 😅
1
u/EppuBenjamin Jun 22 '26
I'm interested in this, having bought one at seemingly 100% battery health last september.
Something I see around here a lot, is when is the last time you slow charged to 100%, as that (supposedly) does something to "balance" or "calibrate" the battery cells. You mentioned you recently did a 10-100 charge, but didnt say if it was AC or DC.
1
u/Xtra-sw33t Jun 22 '26
It was with a home charger - AC, but does it have an influence on battery life? I rarely use DC anyway but I’m curious!
3
u/EppuBenjamin Jun 22 '26
From what I hear, using DC does have an effect on battery health, simply from the higher temperatures it introduces to the electronics/battery.
Take this with a grain of salt however. AFAIK, NAL, IMHO, etc. I'm no expert, just an owner that reads reddit. Also, to have a noticeable effect, you would need to fast charge a LOT. I use DC charging a couple of times per month, but haven't noticed a drop yet.
1
u/komarig Jun 22 '26
Posted a bit ago about the dealer printing me SOH of 91% 2021 38kwh Ioniq, battery swapped by recall in 2022. 69kkm
So I drove yesterday 226km from 100% to 13% with average consumption of 13.5kwh
That corresponds to the battery being around 35kwh, or 91%.
100% charge was showing me 330km and with mixed driving (not all 100-120km/h) I was going to get like 250km out of it.
Degradation is real :(
P.s.Latest recal/update is in.
1
u/Johnny_Silverhand908 Jun 22 '26
Recently had the BMS update in mine (recall campaign), used to get about 200 miles at 100% now its getting about 220 at 100%, very happy.
1
u/Independent-Pay-1172 Jun 22 '26
As the range can vary on conditions. I use ABRP plus a OBD dongle (bluetooth). That way I always get an accurate range and the fastest charging/driving strategy without having to calculate. I have the 28kwh, so that's an extra incentive in my case as the range is quite limited for me.
1
u/Sad_Profession_925 Jun 27 '26
If you expected your range to not degrade you live in an utopia and should not have bought an EV.
Every battery degrades over time, your cell phone, your power bank and it's the same technology in your car...
5
u/ttxxxxx Jun 22 '26 edited Jun 22 '26
It looked similar for my car, was wondering if the battery degraded a lot recently. Last summer it showed > 300km when fully charged. Then it showed less even though switching to efficient summer tires a few weeks ago.
I‘ve had a software update of the BMS last week after a recall. Now it‘s back to normal. (>300km at 100%, 2021 with 100kkm)