I asked my local Mitsubishi iMiEV service guy about any read out he might have on battery health. So, after a recent service, our MY2012, made in 2011, iMiEV's service report had an extra line saying it has 12.9kWh. I asked if that data was available from earlier services. I was interested to have some extra data points. Was it declining more rapidly more recently or did it drop quite a bit when new but has now plateaued or is it just linear? Unfortunately he said he had only recently learned how to get that extra data. Extrapolating and interpreting a bit from what he said, I think the software infers a battery capacity from tracking the rate of rise of voltage while charging at a constant rate. Certainly he said it was not necessary to fully discharge to get this number out.
I typically have a range remaining guesstimated at 100km (a bit more in summer, a bit less in winter) and that has not changed noticeably in the last 4 years since we got the car as an ex-demo two years old already with about 20,000km already.
Anyway, from now on, I will be asking the service guy to include the kWh rating of the battery on each report.
Dealer can tell you kWhs in iMiEV
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Dealer can tell you kWhs in iMiEV
Daihatsu charade conversion 2009-18, Mitsubishi iMiEV 2013-2019, Holden Volt 2018-2019, Hyundai Kona 2019-2023, Hyundai Ioniq 5 2023-present on the ACT's 100% renewable electricity.
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Re: Dealer can tell you kWhs in iMiEV
I would love to see iMiev battery graph vs time. I've done mine on Leaf (taken from LeafSpy):
PS: I can't find info on the all knowing Google what on earth exactly 'Hx' is. My guess is capacity available shown on the GOM (Guess O Meter), since my range on the GOM reflects having 55% of 24kWh.
PS: I can't find info on the all knowing Google what on earth exactly 'Hx' is. My guess is capacity available shown on the GOM (Guess O Meter), since my range on the GOM reflects having 55% of 24kWh.
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Re: Dealer can tell you kWhs in iMiEV
From what I read of Li-ion cells, the capacity of the battery appears to drop rapidly at first, then kind of slow down. It always drops, but the rate of drop is frighteningly quick at the start but kind of normal after a few years/1000 cycles.
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Re: Dealer can tell you kWhs in iMiEV
Yes the value is available in MUT-3 that MMAU use for diagnostics. When a battery recalibration is performed that value is reset as well and repopulated after driving.
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Re: Dealer can tell you kWhs in iMiEV
My 2011 imiev with 2010 cells originally had a 94% PMU according to EVbatmon in feb now it is 70.42%
89,588 km odometer after arriving in Mandurah. After cell change.
Currently. 111,107 km
So
21,519 Km in 6 months
89,588 km odometer after arriving in Mandurah. After cell change.
Currently. 111,107 km
So
21,519 Km in 6 months
2021 Model 3 PW MIC RWD FSD - Mon 28 Jun ‘21 -
k kms 17x
2009 Tango - http://www.evalbum.com/211
Aptera
Cybertruck
On order
Past EVs
2011 i-MiEV
2012 Volt
2014 i3 REx
2014 Model S
2020 FRERWD
k kms 17x
2009 Tango - http://www.evalbum.com/211
Aptera
Cybertruck
On order
Past EVs
2011 i-MiEV
2012 Volt
2014 i3 REx
2014 Model S
2020 FRERWD
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Re: Dealer can tell you kWhs in iMiEV
I now have two data points! Last week we had the airbag recall done and I asked to be told the battery capacity result as well. Previously it was 12.9kWh. Now 12.7kWh. The little change is reassuring because I had the feeling the range remaining guess-o-meter has been telling me lower numbers lately in spite of warmer weather.
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Re: Dealer can tell you kWhs in iMiEV
I lost a fair bit over winter but recovered all but maybe 10 km since it warmed up.Bummer.Peter C in Canberra wrote: ↑Sun, 14 Jan 2018, 07:59 Previously it was 12.9kWh. Now 12.7kWh. The little change is reassuring because I had the feeling the range remaining guess-o-meter has been telling me lower numbers lately in spite of warmer weather.
12.5 kWh is a fair bit down from the notional 16. It is probably similar to my 2010, but I think yours should have the newer , better cells than mine.
Anyway, I have what I have and if it degrades to much I decide what to do.
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Re: Dealer can tell you kWhs in iMiEV
Do you check your tyre pressure regularly? iMiEV tyres are notorious for slowly deflating.Peter C in Canberra wrote: ↑Sun, 14 Jan 2018, 07:59 I had the feeling the range remaining guess-o-meter has been telling me lower numbers lately in spite of warmer weather.
Here is my iMiEV data obtained via OBD from my EvBatMon Android & iPhone App -
Date Odometer Capacity (nom. 330V) 2015-11-27 36000km 36.8Ah 12.1kWh 2015-12-08 36500km 36.7Ah 12.1kWh 2015-12-24 37000km 36.6Ah 12.0kWh 2016-03-10 40319km 36.3Ah 12.0kWh 2016-06-04 43810km 36.0Ah 11.9kWh 2016-07-17 45524km 35.8Ah 11.8kWh 2017-01-26 53700km 35.1Ah 11.6kWh 2017-03-10 55441km 34.9Ah 11.5kWh 2017-06-10 60128km 34.6Ah 11.4kWh 2017-07-30 62219km 34.4Ah 11.4kWh 2017-10-15 65345km 34.1Ah 11.3kWh
2010 iMiEV
2015 PHEV Aspire
Battery App EvBatMon for PHEV & iMiEV iOS(iPhone,iPad)& Android
www.EvPositive.com
2015 PHEV Aspire
Battery App EvBatMon for PHEV & iMiEV iOS(iPhone,iPad)& Android
www.EvPositive.com