Dropped to eight bars!!!!!!!!!!!!
- Thread starter tn77
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Stanton
Well-known member
tn77 said:
Would be nice to have some stats on that car...like the in-service date, or AHr?
Where do you live?
Battery degrading
As far as "speeding up" the process to kill the battery, the answer is no. I didn't intentionally do anything. However, out of necessity, I did a couple non-recommended things:
1) Charged to 100% instead of 80%
2) Charged at least once during the day, in addition to overnight.
Both of those things were done because the range was not sufficient for even basic needs. Round-trip driving to my daughter's school (about half highway, half city) is around 21 miles. The battery range was so weak that I couldn't pick her up without charging it again at home.
Note: a friend of mine recently bought a 2015 Leaf, and there isn't an 80% option any more. I guess the car is just not useful with such a limited range.
Stats
As for stats.... the in-service date was August 23, 2011. I don't know what an AHr is(?). Let me know if you really need that and I'll figure out how to do it. I'm in Maryland but I purchased the car used, in March, from a dealer near NYC.
As far as "speeding up" the process to kill the battery, the answer is no. I didn't intentionally do anything. However, out of necessity, I did a couple non-recommended things:
1) Charged to 100% instead of 80%
2) Charged at least once during the day, in addition to overnight.
Both of those things were done because the range was not sufficient for even basic needs. Round-trip driving to my daughter's school (about half highway, half city) is around 21 miles. The battery range was so weak that I couldn't pick her up without charging it again at home.
Note: a friend of mine recently bought a 2015 Leaf, and there isn't an 80% option any more. I guess the car is just not useful with such a limited range.
Stats
As for stats.... the in-service date was August 23, 2011. I don't know what an AHr is(?). Let me know if you really need that and I'll figure out how to do it. I'm in Maryland but I purchased the car used, in March, from a dealer near NYC.
cwerdna
Well-known member
tn77 said:
http://insideevs.com/2014-nissan-leaf-mostly-unchanged-as-range-technically-moves-up-to-84-miles/
http://insideevs.com/2013-nissan-leaf-rated-at-75-miles-but-84-miles-using-the-old-system/
It was starting on 2014 Leafs for the US market. It seems highly likely it was done to make it look like the vehicle is more competitive vs. other 70ish to 80ish mile EPA range vehicles, since probably 95%+ of folks interested in such EVs will not know the above backstory.
Look at https://web.archive.org/web/20140329040449/http://insideevs.com/wp-content/uploads/2013/11/plug-in-comparisons.png and replace the Leaf's 75 there, which is wrong for '14 model year with 84 and look at the other 70ish to 80ish mile values. Imagine if Leaf remained at "75". (There are a few wrong values there, like the i3 which is actually 81 miles for non-REx and 72 for REx per http://www.fueleconomy.gov/feg/Find.do?action=sbs&id=35207&id=35279&id=34699&id=33558.)
The 80% toggle apparently remains on 2014+ Leafs outside the US, like Ireland.
Mod: Please combine this w/one of the existing capacity loss threads. I'm guessing this is an '11 or '12.
cwerdna
Well-known member
Re: the bolded part, you mean US models.tn77 said:
Here's an example of a guy in Ireland with a 2015 w/80% option still: http://www.mynissanleaf.com/viewtopic.php?p=416013#p416013.
If you care about battery longevity, I wouldn't always charge to 100% if you don't need to nor keep it at 100% for long periods of time, esp. at high temps.
cwerdna
Well-known member
No. It does seem '13+ Leafs with build months after 3/2013 are holding up better. Also, the '15+ Leafs ship with the "lizard" battery. That person can still do things to mitigate time spent at 100% or not reach it such as by using the charging timers or delaying charging.tn77 said:
Unfortunately, Nissan's has never published or publicly provided any sort of battery degradation data nor any sort of % SoC vs. temp degradation graph. So, unless someone does a good controlled study w/the Leaf, I don't think we'll ever know how much it helps to charge only to 80% vs. 100% and the amount of harm when at "100%" for extended periods of time. I say "100%" because the Leaf actually leaves some unused capacity at the top and bottom that aren't user accessible. So 100% isn't really 100%.
Here's some literature for li-ion batteries, but not necessarily the same chemistry variant as used by the Leaf:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://batteryuniversity.com/learn/article/how_to_store_batteries
http://batteryuniversity.com/learn/article/types_of_lithium_ion lists some variants.
Prior to the Leaf going on the sale in the US, Nissan and Carlos Ghosn (Nissan CEO) kept talking about leasing the battery and that being the only way the Leaf would be sold/leased. That never happened for the US.
tn77 said:
I own a 2015 and I'm very surprised how well it's held up in South Florida in the 9 months of ownership.
Here is actual LeafSpy short history from my 2015 Leaf.
I always charge to 100% i.e. set the charge timer to charge so it's at 100% at 8am. Ive had no measured degradation in 9 months of ownership using LeafSpy. When I bought my Leaf it had sat on the hot Florida dealer lot for a full year before I bought it and the measured battery SOH was 95%
Back on November 15th 2015, about 2 weeks after buying it
the AHr was 59.04 HX was 90.96, and SOH was 95%
Today
the AHr is 59.54, HX is 91.78 and SOH is 95%
This is after I did almost daily charges to 100% (250 charges in 270 days) in 9 months and 4,500 miles. All this while going through a very hot Florida Summer where summer Temps have exceeded 91 degrees almost daily.
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Evoforce
Well-known member
Lizard batteries in Arizona are not holding up much better than 2011 chemistry. The stats on my 1st 2011 with a late December 2014 lizard replacement showed the same degradation as my 2nd 2011, with original battery when they were paced together, until the second Leaf needed a battery replacement as well. The lizard on the first car, has not degraded as much as I had projected, but that is related to very low mileage being driven. I am currently running an experiment on a 3rd Leaf, which has resulted in a low number of miles being driven on the second Leaf, alas leading to less degradation over the calendar time projection on Leaf 2. Leaf 3 is a 2012 with original battery, and it is degrading at the anticipated rate with no improvement.
davewill
Well-known member
A warranty replacement gets the balance of the original warranty. A purchased replacement gets a new 5yr/60K capacity warranty.tn77 said:
