How to measure EV battery degradation - then share your results if you have an Ioniq 28kWh

Ғылым және технология

Following up on a suggestion from a subscriber, in this video we are looking at a standard approach to estimate how much battery capacity remains available after a number of years / number of miles driven with the car. We then look to apply this method to collect usage/degradation data from a number of Ioniq 28kWh cars.
Submit your own results at forms.gle/tjtCZbRjv7SoEnij6
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Пікірлер: 23

  • @tommy73_
    @tommy73_3 ай бұрын

    With my Ioniq FL and ODO 32000km, I get 98.82% SoH Thank you for the great video!

  • @Antiorganizer
    @Antiorganizer3 ай бұрын

    I finally got around submitting at least 1 trip using your form. Every other time, I forgot to record something, didn't charge to 100% because the wife did an errand. The good news is we're now both fighting who gets to drive the Ioniq, and since last December, were able to drive 5k less on the ICE thanks to this EV. The weather improved here. I can see the efficiency is a ton better than the last couple of months. Also, the granny level 1 charger (EVSE rather), it's feeding, it seems, about 10.5 km per hour. That's good for North America, but unlike in Europe, level 1 is a mere 120V at 15A max. You're *supposed* to only use 12A. I'm breaking that rule using a cheap portable thing from Amazon which does 14.25A. I checked multiple times to see if anything got hot, but no. North American electrical codes are aggressive. It's entirely taboe doing anything yourself. But that's another topic.

  • @evdabbler

    @evdabbler

    3 ай бұрын

    Thanks. Losses must be somehwat insane on 120V. See kzread.info/dash/bejne/ZYx80MRrm7Kbms4.html where I had 30% losses on 1.2kW charging which is just a bit below what you get on 120V*14A

  • @Lewis_Standing
    @Lewis_Standing4 ай бұрын

    Great idea, I might do the same in my Kona since I'm doing a long trip this weekend

  • @Lewis_Standing

    @Lewis_Standing

    4 ай бұрын

    So I did this on my work commuting 64kwh useable Kona. 2020 70 plate 3 years old, 36,000 miles 200 miles driven, from 100 to 13%. 55kwh used for avg 3.63m/kWh (really bad head winds). Suggests 229 mile 0 to 100 range and temp varies from 4 to 9c. Some 16mph headwinds often both ways! Suggests usable available battery is 63.29kwh so a 0.71kwh loss or SOH 98.8%

  • @evdabbler

    @evdabbler

    2 ай бұрын

    Watch out that kona like ioniq and others has a non linear curve on % vs kWh delivered. So full 100 to 0 wont be 63kWh, looks very good though.

  • @d4nj0d8
    @d4nj0d82 ай бұрын

    Hey, nice idea. i will contribute a measurement soon. Are you planning an end date to this? How and when will you share results with the participants?

  • @evdabbler

    @evdabbler

    2 ай бұрын

    I will do a video soon with what i have collected so far. You should be able to recognise your own performance in the final replay but keeping it anonymous so you won't get any personal response.

  • @Nikoo033
    @Nikoo0334 ай бұрын

    Contributed 👍🏻

  • @FFVoyager
    @FFVoyager4 ай бұрын

    I will certainly contribute.

  • @FFVoyager

    @FFVoyager

    2 ай бұрын

    I finally remembered to contribute! 😆

  • @FFVoyager

    @FFVoyager

    2 ай бұрын

    Did it again - 111 miles with an average of 6mi/kWh. Was about 60 miles from Somerset/Devon border on A roads to Bath and across to Bristol and then 50 miles back on the M5. Decent consumption!

  • @evdabbler

    @evdabbler

    2 ай бұрын

    Thank you!

  • @WolfgangBothe
    @WolfgangBothe4 ай бұрын

    I think it is important not to drive sportively during the test, as battery and motor get warmer by this and this energy is not counted by the car.

  • @evdabbler

    @evdabbler

    4 ай бұрын

    I should have been clearer then. If you stay well within the speed limits in the UK (112km/h) I'd think it's unlikely to make a substantial difference. But don't deplete the battery in 30mn on the autobahn at whatever speed the car can achieve :-)

  • @deltoro5784
    @deltoro57842 ай бұрын

    I did my test outsite temperature 7 Celsius climate off, I drove 152,7 km with consumtion 154Wh/100 km 1% battery left. It seems I have only 23,5 kW usable battery capacity? On Car scanner shows 100 SOH . Ioniq 28 kWh 2019 45565 km on ODO meter. This doesn't looks good. Last summer I have very good 200-220 km range. Did I something wrong?

  • @evdabbler

    @evdabbler

    2 ай бұрын

    Check out the results video and the link where you can compare yourself to the benchmark. You're only slightly 2% worse than average from the benchmark for ioniqs sub50k km. So no you didn't get it wrong. There are various losses so just looking at how much the battery delivered will never get you close to 28kWh. Try again in the summer and see if you eek out another 0.5kWh with slightly fewer losses.

  • @kevb648
    @kevb648Ай бұрын

    Since the display SOC isn’t linear isn’t this method inaccurate?

  • @evdabbler

    @evdabbler

    Ай бұрын

    No i then correct for non linearity. It does assume the curvature is the same for all cars but if you look at the results this seems a valid assumption

  • @Antiorganizer
    @Antiorganizer4 ай бұрын

    Could the meters be lying? Could it be lying about the kWh used? Or lying about the % left? What about taking into account the amount of kWh put into the car? There will be heat losses though. Anyway, I will totally make notes on my next run. Thing is though, most errands around more around the 60 to 90 km mark, so I'll end up with 40 to 70% left each time. Might it be a good idea to make a comparison on how much the car claims it used, and how much charge you put back in? ps. Every time I see your white Ioniq, I wish my blue Ioniq was also a white Ioniq, lol.

  • @evdabbler

    @evdabbler

    4 ай бұрын

    Lol. White is good. The ioniq is trustworthy on the meter. The level of ac charge very predictable as function of that reading. % left is not linear. But go ahead and share 40%, 50% etc readings as it will be 'on the curve'.

  • @Antiorganizer

    @Antiorganizer

    4 ай бұрын

    @@evdabbler Will do!

  • @florentcoste

    @florentcoste

    2 ай бұрын

    @@evdabbler yest i was about to say that % left is not linear, but with the graph it will be visible & transparent. I will submit !

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