vwelham
Posts: 3
Joined: Fri Oct 12, 2012 4:58 pm

Battery Degradation

Fri Oct 12, 2012 5:11 pm

I'm considering the Mitsubishi i for purchase. While researching the EV market , I noticed that battery degradation is becoming discussed on the web concerning the Leaf. Battery bars are dropping off their dashboard and the Leaf range is affected...My question to i-MIEV owners is: What, if any , battery degradation are you experiencing with your i-MIEV? Can you please post your response to let me know if you are , or are not , experiencing problems with the Lithium Ion battery in the i-MIEV.

BillThompsonMIEV
Posts: 137
Joined: Thu Jul 19, 2012 8:43 pm
Location: San Antonio, Texas

Re: Battery Degradation

Fri Oct 12, 2012 5:15 pm

Have owned car for almost three months. No issues with range.

sandange
Posts: 902
Joined: Thu Jul 05, 2012 2:21 am
Location: Quebec, Canada
Contact: Website

Re: Battery Degradation

Sat Oct 13, 2012 3:43 am

3 1/2 months and 8,500 km (5,281 miles), & all looks normal.

There are others here with more time and mileage.
Puey Bluey 2014 Miev
180,xxx miles, 190,xxx km
Previous EVs
Blackie - 2012 ES Miev 2 years - 67,000 km / (41,630 miles)
Total Electric miles driven 221,630 miles (257,000 km)
http://thecordstead.blogspot.ca/

MLucas
Posts: 833
Joined: Thu Jun 07, 2012 8:52 am
Location: Niagara on the Lake, Ontario, Canada

Re: Battery Degradation

Sat Oct 13, 2012 5:18 am

I have the same age and kilometers as Sandange with no issues. However, we are both in moderate climates for owning an EV.

The problem with the Leaf is that it does not contain an Active Thermal Management System. Lithium Ion battery chemistry can not be kept at temperatures above 104F/40C. Our owner's manual gives exact specifications what occurs at that tempurature and how the car will respond to it. The Mitsubishi i does have a ATMS using the onboard climate control system.

There are others here that have owned the car for almost a year and so far we have heard no complaints of decreased range even from those living in much hotter climates. The i MiEV seems to be doing really well out in the world on its own.

Like Dylan...I went electric.

  • Purchased: June 29th, 2012
  • Mileage on June 29th, 2013 - 25,431 km / 15,802 miles
  • Mileage on June 29th, 2014 - 51,286 km / 32,616 miles

List of Oil Spills: http://en.wikipedia.org/wiki/List_of_oil_spills

JoeS
Site Moderator
Posts: 3668
Joined: Thu Dec 15, 2011 5:47 am
Location: Los Altos Hills, California

Re: Battery Degradation

Sat Oct 13, 2012 5:44 am

Over 7500 miles (12000km) since February 2012 and no range change noted at all. Moderate climate with only a few days close to 100degF (38degC). Averaging 4.2miles/kWhr (6.8km/kWh) wall-to-wheels. Love this car!
EVs: 2 Wht/Blu SE Prem., '13 Tesla MS85, 3 156v CorbinSparrows (2 Li-ion), 24v EcoScoot(LiFePO4)
EV Conv: 156v '86 Ram PU, 144v '65 Saab 96
Hybrids: 48v1kW bike
ICE: '88 Isuzu Trooper. Mothballed: '67 Saab (orig.owner), '76 MBZ L206D RHD RV

jjlink
Site Moderator
Posts: 398
Joined: Sun Sep 11, 2011 8:26 am
Location: San Francisco Bay Area, CA

Re: Battery Degradation

Sat Oct 13, 2012 8:07 am

JoeS wrote:Over 7500 miles (12000km) since February 2012 and no range change noted at all. Moderate climate with only a few days close to 100degF (38degC). Averaging 4.2miles/kWhr (6.8km/kWh) wall-to-wheels. Love this car!


Same experience as JoeS here, no range change noted at all with over 8,700 miles Since January 2012. Same weather conditions also.
John - 2012 Silver i-MiEV SE model, Jan 19th, 2012 w/OpenEvse, caniOn,& OVMS.

Vike
Posts: 401
Joined: Sun Jun 10, 2012 8:25 pm
Location: Albuquerque, New Mexico

Re: Battery Degradation

Sat Oct 13, 2012 9:38 am

As a new i-MiEV owner, I find all this very reassuring, especially in light of Nissan's ongoing problems (I still don't understand why they aren't buying cars back to take the air out of the story). Come next summer, though, I definitely intend to keep my cabin comfortably cooled, which should help keep battery temp down as well. Seems to me sacrificing a little range short term beats all heck out of prematurely aging the battery chemistry.
2012 Silver ES w/QuickCharge+DRL/foglights, Eaton Level 2 EVSE, since 9/9/2012

vwelham
Posts: 3
Joined: Fri Oct 12, 2012 4:58 pm

Re: Battery Degradation

Mon Oct 15, 2012 11:47 am

Thank - you to all you owners posting feedback regarding the (lack of) battery degradation so far on the iMiev. Took a test drive this past weekend and I was quite impressed with the vehicle. Please continue to post feedback.

fjpod
Posts: 529
Joined: Tue Apr 17, 2012 2:31 am
Location: NYC

Re: Battery Degradation

Mon Oct 15, 2012 10:55 pm

Had mine about 5 months and 3,500 miles. I see no loss of range. Time will tell.

oakvilleblake
Posts: 45
Joined: Tue Jul 03, 2012 7:36 pm

Re: Battery Degradation

Tue Oct 30, 2012 10:07 pm

Have had ours for 2 months and the range has improved noticeably over time.

Return to “Batteries and Battery Management”