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tzzhc4
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Joined: Sat Jun 04, 2011 8:46 am
Delivery Date: 02 Jun 2011
Leaf Number: 2192
Location: Texas

Re: Battery gauge at 7 bars (Texas Summer)

Wed Jun 15, 2011 4:20 pm

mogur wrote:Remember that the temperature gauge is non-linear. If you look at the service manual, the amount of temperature span that the bars represent grow as you reach either extreme. Thus, it requires a larger change to go from, say, 7 to 8 bars than from 6 to 7 bars... .
Looking at the service manual the bars in the midrange (4-8) are all about 24F degrees apart. Outside of that range the increments are smaller.

Image
Last edited by tzzhc4 on Wed Jun 15, 2011 4:46 pm, edited 1 time in total.
Cayenne Red SL-e, VIN 2192. Reserved: 4/20/10. Ordered: 10/2/10. Delivered: 6/2/11. Ingineer upgraded factory EVSE

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ecoobsessive
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Delivery Date: 19 May 2011
Leaf Number: 1725
Location: San Antonio

Re: Battery gauge at 7 bars (Texas Summer)

Wed Jun 15, 2011 4:45 pm

Actually it looks to me like the temp. spans decrease when you approach the extreems. Regardless, I think we will be OK since we are fine up to 130, unless someone wants to do a quick charge when it is 115 outside.

Thanks for posting the info from the service manual. Looks like people in cold climates will have more of a problem than us hot climate people (as Nissan expected).

Now let's just get good data on what happens to range in 100-115 temps (all the tables I've seen so far have max temp of 95.
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Skywagon
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Delivery Date: 08 Jan 2011
Location: Chandler, AZ

Re: Battery gauge at 7 bars (Texas Summer)

Wed Jun 15, 2011 5:18 pm

I live/work near LEAFfan and have covered parking at work and a garage at home. I have only seen 6 bars so far as my highest. I will check when I leave work here in a few as today is the hottest the car has seen yet; the temp outside here at work is showing 108 degrees F right now.

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tzzhc4
Posts: 139
Joined: Sat Jun 04, 2011 8:46 am
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Leaf Number: 2192
Location: Texas

Re: Battery gauge at 7 bars (Texas Summer)

Wed Jun 15, 2011 6:13 pm

Skywagon wrote:I live/work near LEAFfan and have covered parking at work and a garage at home. I have only seen 6 bars so far as my highest. I will check when I leave work here in a few as today is the hottest the car has seen yet; the temp outside here at work is showing 108 degrees F right now.
I wonder if the humidity here plays a roll in heating more? 60% humidity at +100F certainly feels a lot different than +100F with single digit humidity.
Cayenne Red SL-e, VIN 2192. Reserved: 4/20/10. Ordered: 10/2/10. Delivered: 6/2/11. Ingineer upgraded factory EVSE

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evnow
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Re: Battery gauge at 7 bars (Texas Summer)

Wed Jun 15, 2011 6:29 pm

From 5 & above, the difference is 12 to 13 degrees (C). 1 to 4 bars, it is 3 degrees (C).
1st Leaf : 2/28/2011 to 5/6/2013
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davewill
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Re: Battery gauge at 7 bars (Texas Summer)

Wed Jun 15, 2011 7:06 pm

evnow wrote:From 5 & above, the difference is 12 to 13 degrees (C). 1 to 4 bars, it is 3 degrees (C).
and from 8-12 it's 2.5 degrees (C).
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TomT
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Re: Battery gauge at 7 bars (Texas Summer)

Wed Jun 15, 2011 9:56 pm

Sorry, I typed the order backwards of what I intended! The original post has been edited to correct the error.

tzzhc4 wrote:
mogur wrote:Remember that the temperature gauge is non-linear. If you look at the service manual, the amount of temperature span that the bars represent grow as you reach either extreme. Thus, it requires a larger change to go from, say, 7 to 8 bars than from 6 to 7 bars... .
Looking at the service manual the bars in the midrange (4-8) are all about 24F degrees apart. Outside of that range the increments are smaller.
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Re: Battery gauge at 7 bars (Texas Summer)

Wed Jun 15, 2011 10:11 pm

god, another gauge to watch.
these evs are so much trouble.
may reserve/delivery 4/30/11
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ECOtality/LADWP/ Blink 4/4/11
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Volusiano
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Re: Battery gauge at 7 bars (Texas Summer)

Sat Jun 18, 2011 3:07 pm

I live in Phoenix and currently my car is parked inside the garage not driven since last night and it's already at 6 bars and the outside temperature is 100. I see 7 bars often when I drive in 100 degree weather.

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evnow
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Re: Battery gauge at 7 bars (Texas Summer)

Sat Jun 18, 2011 6:16 pm

Volusiano wrote:I live in Phoenix and currently my car is parked inside the garage not driven since last night and it's already at 6 bars and the outside temperature is 100. I see 7 bars often when I drive in 100 degree weather.
So, the batteries are hardly getting above the ambient temperature. Sounds great.
1st Leaf : 2/28/2011 to 5/6/2013
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