cdherman
Posts: 159
Joined: Sun Apr 08, 2012 8:22 am
Leaf Number: 22947
Location: Kansas City, Missouri

Temp bars

Thu Dec 12, 2013 6:49 pm

Funny -- I have not got below 4. Garage temp in AM is often under 40, but above freezing.

The one day, the starting outside temp was 12, and rose along the way.

The garage at TMC is unheated, but does protect from wind and elements mostly. Leaving temps were under 20 a couple times and I still was showing 4 bars, after sitting outside for 8-10 hours.

So, two theories: One is that perhaps the temp sensors are not that accurate.

Second is that my garaged battery maintains its heat long into the day. It probably heats up some with 16 miles of brisk driving (consuming 4 or more bars on a cold day), and slowly cools back down during the day.

Hard to say -- suppose more information could be gleaned from the forums, but hard to say.....
2016 SV 30kwh, 2014 Blue Prius, 2011 Silver Prius, 2005 Subaru Forester X, 1965 F-100
8.2KW GridTie Solar
Sold 2012 SL 42k miles, 10 bars, 12/15/16 for $5999
Kansas City MO

Stoaty
Posts: 4467
Joined: Fri Jun 18, 2010 9:50 pm
Delivery Date: 12 Jun 2011
Leaf Number: 3871
Location: West Los Angeles

Re: Temp bars

Thu Dec 12, 2013 8:46 pm

Here is a thread about the time constant for battery pack temperature equilibration:

viewtopic.php?f=27&t=12749
2011 Leaf with 62,000 miles given to Nephew
2013 Tesla Model S85 with 251 miles rated range at full charge
Leaf Spy Manual
Battery Aging Model Spreadsheet

KJD
Posts: 1348
Joined: Sat Jan 22, 2011 11:06 am
Delivery Date: 08 Dec 2011
Leaf Number: 15656
Location: SLC, UT
Contact: Website

Re: Temp bars

Thu Dec 12, 2013 8:57 pm

cdherman wrote:Second is that my garaged battery maintains its heat long into the day. It probably heats up some with 16 miles of brisk driving (consuming 4 or more bars on a cold day), and slowly cools back down during the day.

Get the LEAF Spy and you can see what is going on with the battery temps. Parking in a garage makes a BIG difference in temps.
viewtopic.php?f=44&t=14285
2012 SL Delivered 12/08/2011
Sold 05/12/2015
2012 Tesla Model S 85

cdherman
Posts: 159
Joined: Sun Apr 08, 2012 8:22 am
Leaf Number: 22947
Location: Kansas City, Missouri

Re: Temp bars

Sat Dec 14, 2013 6:21 am

Sorry all -- meant to post a reply to the Kansas City thread and must have hit the new topic button.......
2016 SV 30kwh, 2014 Blue Prius, 2011 Silver Prius, 2005 Subaru Forester X, 1965 F-100
8.2KW GridTie Solar
Sold 2012 SL 42k miles, 10 bars, 12/15/16 for $5999
Kansas City MO

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