User avatar
Stanton
Forum Supporter
Posts: 1937
Joined: Thu Feb 03, 2011 10:56 am
Delivery Date: 01 Sep 2011
Leaf Number: 7458
Location: Plano, TX
Contact: Website Twitter

Re: 2016 30 kWh Battery data

Fri May 26, 2017 8:38 am

DaveinOlyWA wrote:But for you, your pack would take forever to cool off and it simply won't cool down enough. Someone mentioned that the packs have air ventilation coming from the front of the car. Wondering if determining its inlet and putting a fan on it would make a difference?


Been there, done that...and it didn't make a bit of difference.
Based on early forum discussions, I put a big fan at the front of my Leaf (before I ever lost my first bar) and ran it any night I saw 7TB when I got home from work (which was about 2-3 months out of the year). Result: I qualified for my (free) battery pack well before my capacity warranty had expired.
We can speculate about where/when I chose to run the fan, but I think the simple answer was: the garage is just too hot in the TX summer to allow the pack to ever really cool...and I'm not going to put A/C in my garage (and I'm not going to park my Leaf outside overnight--not that it would have made a difference).
2011 Blue Ocean SV w/floor mats & window tint
12v LiFePO4 battery & FIAMM 74100 horns
Wet Okole seat covers (front)
Tor's low-power heater mod
2013 sun visor
3G modem upgrade
L2 EVSE Upgrade
Battery Pack replaced (Rev E) @51 months and 41k miles

DaveinOlyWA
Gold Member
Posts: 12085
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 10 Nov 2016
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: 2016 30 kWh Battery data

Sun May 28, 2017 6:59 am

Stanton wrote:
DaveinOlyWA wrote:But for you, your pack would take forever to cool off and it simply won't cool down enough. Someone mentioned that the packs have air ventilation coming from the front of the car. Wondering if determining its inlet and putting a fan on it would make a difference?


Been there, done that...and it didn't make a bit of difference.
Based on early forum discussions, I put a big fan at the front of my Leaf (before I ever lost my first bar) and ran it any night I saw 7TB when I got home from work (which was about 2-3 months out of the year). Result: I qualified for my (free) battery pack well before my capacity warranty had expired.
We can speculate about where/when I chose to run the fan, but I think the simple answer was: the garage is just too hot in the TX summer to allow the pack to ever really cool...and I'm not going to put A/C in my garage (and I'm not going to park my Leaf outside overnight--not that it would have made a difference).


First off are we talking about 30 kwh packs?

Actually it likely wouldnt. Guessing the air flow is highly restricted so a fan blowing into the front would be limited. I think the best bet is determining where the air flow outlet is and putting a fan there to create negative pressure. I am collecting data that implies that the front sensor is getting a lot more air flow cooling than the rear sensor which means air flow is not sufficient despite running at highway speeds in cool weather so during warm weather, there is no chance.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 (build 10/2016)"low water marks" 24,261.3 miles.363 GIDAhr 80.66Hx95.95%kwh28.1QCs205,L2's 226
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

SageBrush
Posts: 1221
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: 2016 30 kWh Battery data

Sun May 28, 2017 7:31 am

Stanton wrote:
DaveinOlyWA wrote:But for you, your pack would take forever to cool off and it simply won't cool down enough. Someone mentioned that the packs have air ventilation coming from the front of the car. Wondering if determining its inlet and putting a fan on it would make a difference?


Been there, done that...and it didn't make a bit of difference.
Based on early forum discussions, I put a big fan at the front of my Leaf (before I ever lost my first bar) and ran it any night I saw 7TB when I got home from work (which was about 2-3 months out of the year). Result: I qualified for my (free) battery pack well before my capacity warranty had expired.
We can speculate about where/when I chose to run the fan, but I think the simple answer was: the garage is just too hot in the TX summer to allow the pack to ever really cool...and I'm not going to put A/C in my garage (and I'm not going to park my Leaf outside overnight--not that it would have made a difference).

I'm not surprised to hear that a fan in a garage was ineffective. Was the garage door closed ?
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California with 63.9 Ahr after 22k miles
Car is now enjoying an easy life in Colorado

DaveinOlyWA
Gold Member
Posts: 12085
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 10 Nov 2016
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: 2016 30 kWh Battery data

Sun May 28, 2017 9:48 am

SageBrush wrote:
Stanton wrote:
DaveinOlyWA wrote:But for you, your pack would take forever to cool off and it simply won't cool down enough. Someone mentioned that the packs have air ventilation coming from the front of the car. Wondering if determining its inlet and putting a fan on it would make a difference?


Been there, done that...and it didn't make a bit of difference.
Based on early forum discussions, I put a big fan at the front of my Leaf (before I ever lost my first bar) and ran it any night I saw 7TB when I got home from work (which was about 2-3 months out of the year). Result: I qualified for my (free) battery pack well before my capacity warranty had expired.
We can speculate about where/when I chose to run the fan, but I think the simple answer was: the garage is just too hot in the TX summer to allow the pack to ever really cool...and I'm not going to put A/C in my garage (and I'm not going to park my Leaf outside overnight--not that it would have made a difference).

I'm not surprised to hear that a fan in a garage was ineffective. Was the garage door closed ?


agreed. Didn't someone rig up AC in their garage in Phoenix to cool the garage to like 90 (I guess "some" people would call that cool... :shock: ) and it didn't help either?

I think any cooling has to be directly connected to the battery pack itself.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 (build 10/2016)"low water marks" 24,261.3 miles.363 GIDAhr 80.66Hx95.95%kwh28.1QCs205,L2's 226
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

SageBrush
Posts: 1221
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: 2016 30 kWh Battery data

Sun May 28, 2017 11:16 am

DaveinOlyWA wrote:I think any cooling has to be directly connected to the battery pack itself.

It surely does not help to move hot air around.

Since driving does keep the battery temps down, ventilation must play a part in battery cooling but the battery will never cool down lower than ambient, thus the need to put the car outside, not on toasty asphalt, and not in the sun. I would not be surprised at all to find that the owners with the most severe battery degradation stories are in hot climates with garaged cars.
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California with 63.9 Ahr after 22k miles
Car is now enjoying an easy life in Colorado

DaveinOlyWA
Gold Member
Posts: 12085
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 10 Nov 2016
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: 2016 30 kWh Battery data

Sun May 28, 2017 11:23 am

SageBrush wrote:
DaveinOlyWA wrote:I think any cooling has to be directly connected to the battery pack itself.

It surely does not help to move hot air around.

Since driving does keep the battery temps down, ventilation must play a part in battery cooling but the battery will never cool down lower than ambient, thus the need to put the car outside, not on toasty asphalt, and not in the sun. I would not be surprised at all to find that the owners with the most severe battery degradation stories are in hot climates with garaged cars.


It doesn't if the air is as hot or hotter. In my case, the weather is warm, radiant heat adds another 10+º, but all of that does not add up to the fact my pack has hit 125+ 3 days in a row...
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 (build 10/2016)"low water marks" 24,261.3 miles.363 GIDAhr 80.66Hx95.95%kwh28.1QCs205,L2's 226
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

SageBrush
Posts: 1221
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: 2016 30 kWh Battery data

Sun May 28, 2017 10:44 pm

The battery temp in our car hit 6 bars this week -- first time I have seen it that high since we bought the car in January but it was back to 5 bars by morning.

I figure I will see 8 bars by the time summer is over. That sounds high to me ... until I think of the cars that live in hell .... err, I mean Phoenix and environs.
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California with 63.9 Ahr after 22k miles
Car is now enjoying an easy life in Colorado

DaveinOlyWA
Gold Member
Posts: 12085
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 10 Nov 2016
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: 2016 30 kWh Battery data

Mon May 29, 2017 9:06 am

SageBrush wrote:The battery temp in our car hit 6 bars this week -- first time I have seen it that high since we bought the car in January but it was back to 5 bars by morning.

I figure I will see 8 bars by the time summer is over. That sounds high to me ... until I think of the cars that live in hell .... err, I mean Phoenix and environs.


I think you will be fine. I know a few Phoenicians who basically start out with 9 or 10 TBs in the morning and it that is how it is for 7 months a year. 8 is a cakewalk
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 (build 10/2016)"low water marks" 24,261.3 miles.363 GIDAhr 80.66Hx95.95%kwh28.1QCs205,L2's 226
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

SageBrush
Posts: 1221
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: 2016 30 kWh Battery data

Mon May 29, 2017 9:15 am

DaveinOlyWA wrote:I think you will be fine. I know a few Phoenicians who basically start out with 9 or 10 TBs in the morning and it that is how it is for 7 months a year. 8 is a cakewalk

That is what I keep telling our car.
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California with 63.9 Ahr after 22k miles
Car is now enjoying an easy life in Colorado

johnlocke
Posts: 144
Joined: Fri Jan 08, 2016 3:47 pm
Delivery Date: 14 Dec 2015
Leaf Number: 300582

Re: 2016 30 kWh Battery data

Tue May 30, 2017 2:02 pm

It's the end of May and I'm down to 300 GID's. Stats are AHr=65.70 SOH=82% Hx=75.84% 28051 mi 44 QCs and 521 L2. The first bar continues to come and go. 11 bars after a full charge but after driving 30 minutes it shows 12 bars again and stays that way until I charge it again.
Jamul, CA
San Diego East County

Return to “LEAF CANBus”