Oils4AsphaultOnly
Gold Member
Posts: 413
Joined: Sat Oct 10, 2015 4:09 pm
Delivery Date: 20 Nov 2016
Leaf Number: 313890
Location: Arcadia, CA

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Fri Jun 01, 2018 9:13 am

So just got a report from Japan that they're being throttled there as well: https://teslamotorsclub.com/tmc/posts/2778623/

So it's not ambient temperature related.
:: Model 3 LR :: acquired 9 May '18
:: Leaf S30 :: build date: Sep '16 :: purchased: Nov '16
Date - Miles / GIDs:
May '17 - 7300 mi / 363
Feb '18 - 20.5k mi / 333
... awaiting firmware update

arnis
Posts: 892
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Fri Jun 01, 2018 10:28 am

OFC it is not ambient based. Charging rate limit is set at the start of charging session. And it doesn't change during the session.
It is based solely on the hottest battery sensor reading.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

SageBrush
Posts: 2595
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Fri Jun 01, 2018 12:27 pm

Oils4AsphaultOnly wrote:So just got a report from Japan that they're being throttled there as well: https://teslamotorsclub.com/tmc/posts/2778623/

So it's not ambient temperature related.

Related, in the sense that ambient affects the battery temperature. Your link mentions that the throttling occurred at the second DCFC, but the important detail is that the first DCFC was a short one. Does that mean that summer range is initial SoC + a little more ? Without more battery temperature data we don't know more about the trigger(s). With summer upon us reports should come in a flood, but this all sounds like somewhere between bad and really bad, both for the effect on longer trip driving and the implications it has for battery degradation.

Has Nissan provided any information ?
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
3/2018: 58 Ahr, 28k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

maxholland
Posts: 6
Joined: Wed Jun 13, 2018 9:14 am
Delivery Date: 13 Jun 2018

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Tue Jul 17, 2018 3:20 pm

For all 2018 Leaf owners or possible future owners who are planning for long trips and want definitive information about what happens with heat and charge throttling, check out this new article on Cleantechnica:

https://cleantechnica.com/2018/07/16/2018-leaf-vs-long-journeys-can-it-take-the-heat/

Jump in the comments there with your own experience and questions!

Evoforce
Posts: 820
Joined: Wed Mar 04, 2015 9:58 pm
Delivery Date: 28 Feb 2015
Location: Fountain Hills Arizona

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Wed Jul 18, 2018 12:30 am

maxholland wrote:For all 2018 Leaf owners or possible future owners who are planning for long trips and want definitive information about what happens with heat and charge throttling, check out this new article on Cleantechnica:

https://cleantechnica.com/2018/07/16/2018-leaf-vs-long-journeys-can-it-take-the-heat/

Jump in the comments there with your own experience and questions!


Very informative, thank you!
*2011 Leaf 1 bought 2/28/15 @ 28,000ish mi 10 bar (8 bars @ 11/25/15 @ 37,453 ) (New lizard @ 39,275 mi @ 1/20/2016) Now 52,166 mi.
*Tesla Model S 61,000 mi
*2011 Leaf 2 bought 4/28/15 @ 24,000ish mi 12 bar (new lizard Dec. 2014 @ 22,273 mi) Now 35,485 mi

Evoforce
Posts: 820
Joined: Wed Mar 04, 2015 9:58 pm
Delivery Date: 28 Feb 2015
Location: Fountain Hills Arizona

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Thu Jul 26, 2018 2:23 pm

As summer is upon us, this is shaping up to not look very good for 2018 Nissan Leaf based on early summer reporting, from those who have driven normal highway speeds and Quick charging.
*2011 Leaf 1 bought 2/28/15 @ 28,000ish mi 10 bar (8 bars @ 11/25/15 @ 37,453 ) (New lizard @ 39,275 mi @ 1/20/2016) Now 52,166 mi.
*Tesla Model S 61,000 mi
*2011 Leaf 2 bought 4/28/15 @ 24,000ish mi 12 bar (new lizard Dec. 2014 @ 22,273 mi) Now 35,485 mi

hyperionmark
Posts: 194
Joined: Tue Jan 31, 2017 11:46 am
Delivery Date: 31 Jan 2017
Location: Nebraska

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Thu Jul 26, 2018 2:28 pm

Evoforce wrote:As summer is upon us, this is shaping up to not look very good for 2018 Nissan Leaf based on early summer reporting, from those who have driven normal highway speeds and Quick charging.

Other than the performance of quick charging, we have zero data on degradation. That is the bigger question IMO, at least for me. Of course I live in the Midwest and don't see any EV other than a Tesla having real road trip potential currently.

User avatar
OrientExpress
Forum Supporter
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Delivery Date: 10 May 2011
Leaf Number: 2331
Location: San Jose, Ca

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Thu Jul 26, 2018 2:56 pm

To be clear, world-wide there are no issues that have been discovered with the 2018 battery.

What has been discovered is that 97% of those that have a 2018 don't have a driving regime that requires multiple daily quick charges, and those that do, are able to complete their quick charge successfully.

The safety and longevity safeguards built into the LEAF operate as designed using the same method that ALL other BEVs quick charge systems employ, namely the throttling of the charge level to mitigate heat degradation. The result of that is that it may take a little longer to complete a quick charge session. It does not matter if you quick charge a LEAF, Bolt, Tesla or VW, all of these BEVs employ throttling of the charge to promote battery longevity, which will vary the time that a quick charge session lasts. Depending on the variables that occurs during your Quick Charge session "Your quick charge session time may vary."

Some find that intolerable, but then again, if there weren't safety systems to protect the longevity of the battery, those same outraged complainers would find that intolerable as well.
2018 LEAF SL
Gun Metalic
Delivery April 10 2018

Prior LEAF:
2014 LEAF SV
Ocean Blue
Delivery May 23 2014
50,000+ miles - all 12 bars - Same range as new - No warranty issues ever!

SageBrush
Posts: 2595
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Thu Jul 26, 2018 3:56 pm

OrientExpress wrote:To be clear, world-wide there are no issues that have been discovered with the 2018 battery.

LOL !!
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
3/2018: 58 Ahr, 28k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

LeftieBiker
Posts: 9066
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: Possible Widespread 2018 Traction Battery Quick Charge Problems

Thu Jul 26, 2018 8:23 pm

He views through world through finger-colored glasses.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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