Collecting data:Off-the-wall power for turtle to 100% charge
- Thread starter TickTock
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JeremyW
Well-known member
My 100% gid count is 265. When it was new I got 271.
Sounds bad... but then there's shenanigans like this:
Tomorrow: dead to 100% from the wall measurement.
Sounds bad... but then there's shenanigans like this:
I'm pretty sure I reset the mi/kWh gauge before I started. Tony says super car...JeremyW said:
Tomorrow: dead to 100% from the wall measurement.
surfingslovak
Well-known member
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- Jun 13, 2011
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Look forward to that data point! And yes, 85.9 miles at 3.9 m/kWh seems a tad high. I didn't realize your car read 271 Gid when it was new. Losing 6 Gids over the course of a Sacramento summer would be pretty good! Although, given the wide range of results we've witnessed with Gids, I'm much less willing to take them at their face value.JeremyW said:My 100% gid count is 265. When it was new I got 271. I'm pretty sure I reset the mi/kWh gauge before I started. Tony says super car... Tomorrow: dead to 100% from the wall measurement.
LEAFer
Well-known member
Teaser: I borrowed a GID meter on Wednesday. Will have it until coming Wednesday morning. Interesting data ... will post when I have it all collected. And you guys may go hog wild figuring it out
And you guys may go hog wild figuring it out DaveinOlyWA
Well-known member
LEAFer said:Teaser: I borrowed a GID meter on Wednesday. Will have it until coming Wednesday morning. Interesting data ... will post when I have it all collected.
ok fine. any hints? prelim data?
LEAFer
Well-known member
No. :lol:DaveinOlyWA said:LEAFer said:Teaser: I borrowed a GID meter on Wednesday. Will have it until coming Wednesday morning. Interesting data ... will post when I have it all collected.
ok fine. any hints? prelim data?
LEAFer
Well-known member
Ok ... let me explain why I was being so brusque. The data being collected shows some unexpected "stuff", but some of the recording is being done by my son early in the morning when he leaves, and he is a little less ... let's say ... fastidious ... than he could be. In other words, there may be an inconsistency or two in recording. And, secondly, rather than start a complex analysis with only partial data, I think it's better to have the entire set to analyze.LEAFer said:No. :lol:DaveinOlyWA said:LEAFer said:Teaser: I borrowed a GID meter on Wednesday. Will have it until coming Wednesday morning. Interesting data ... will post when I have it all collected.
ok fine. any hints? prelim data?
I'll have the GID meter thru at least Wednesday, not sure if I can extend in order to run another turtle-to-100% event, also subject to my son's schedule in needing the car.
HTH
I cross posted in Tony's cold temp thread: http://www.mynissanleaf.com/viewtopic.php?f=31&t=7634&start=60#p243033TickTock said:
Well, here's the imperfect data:
Outside Temp 28-32 F, fog/freezing fog, no wind. Car charged to 100% overnight in uninsulated garage (battery might have been a bit warmer, maybe 35-40 F, showed 4 bars to start). Pre-warmed car (on L1 does consume some of the battery) but no climate control during driving.
60.7 mi to LBW, 71.0 mi to VLBW, 80.5 mi to Turtle, 80.7 mi total, about 2 hrs total drive time.
Edit: 4.3 mi/KWH, reset at beginning of trip.
Charging: Start 12:20pm, finish ~06:30 next morning, (~18 hrs L1), 25.37 KWH (Killa-Watts)
Driving Estimate: 3 mi for coffee, 1hr off, 3 mi back at 35 mph on city streets, 3mi@35city, 3@45HW, 3mi@30city, 5mi@50HW, 16 mi@55-65FW, 5mi@35city. Unfortunately, nothing was really flat. About 400ft net elevation rise outbound. LBW occurred on the freeway about 10 mi out of town. VLBW occurred as I was coming into town and the dreaded flashing "4" stayed that way for another 10 mi. Most of the VLBW was at 25-35 mph. I circled the block 2-3 times until Turtle. Looking back at this, I think under level conditions and charging/pre-heating on L2, I could have easily gotten 85 mi at similar driving speeds. I probably wasn't at a full 12 bars to start the drive.
The car is 15mo old and has about 8500 mi. Looks like I'm close to others. Hope this helps the collective cause.
Reddy
JeremyW
Well-known member
JeremyW said:Tomorrow: dead to 100% from the wall measurement.
23.239 kWh over 6 hours and 35 min
Final gid count: 268
Abient: 59 degrees. 5 temp bars.
JeremyW
Well-known member
Picture is worth 1k words...
surfingslovak
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Great job visualizing it for us. I was going to estimate you loss of usable capacity between 6 to 8% based on wall energy data. I can see two dots on the graph, which would roughly match that. What's the dark blue dot at 9 or 10% down?JeremyW said:
LEAFer
Well-known member
So here it is ... all the data you could ever want: http://www.mynissanleaf.com/viewtopic.php?f=31&t=10653" onclick="window.open(this.href);return false;
Rauv
Well-known member
First VLBW (but no turtle) to 100% charge for me since I bought the car:
Total wall kWh: 22.94
Time of charge: 6hr.13min.
Miles: not measured - charge during the day
M/kwh: Not measured.
Battery Temp after chgarge: 4 TB
Ambient Temp: 31.5F at charge end.
No pre-heating including in reported charge energy
Plugged in at 4:00 PM
Began charging 8:47 PM via car charing timer
Finished Charging: 3:00 AM
Measured using Watnode Pulse meter (+/-)0.5% accuracy; two solid core CT's with accuracy (+/-)1.0%
Total wall kWh: 22.94
Time of charge: 6hr.13min.
Miles: not measured - charge during the day
M/kwh: Not measured.
Battery Temp after chgarge: 4 TB
Ambient Temp: 31.5F at charge end.
No pre-heating including in reported charge energy
Plugged in at 4:00 PM
Began charging 8:47 PM via car charing timer
Finished Charging: 3:00 AM
Measured using Watnode Pulse meter (+/-)0.5% accuracy; two solid core CT's with accuracy (+/-)1.0%
TickTock
Well-known member
Noted. I assumed this was an L2 charge. At 1.38% degradation, your battery is enjoying that cool weather up there.
Leaf Capacity Distribution
Leaf Capacity Distribution
camasleaf said:
Now at 1760 miles (4.3 kWh life average) and almost two months since we got the car: from turtle (5 GID) to 100% Blink reported 24.8 kWh. Battery was likely colder than the initial test. The car was outside on Friday and showed 4 TB, it did show 5 TB when I left the garage Saturday and when I came back just at VLBW. I used the heater to drain the battery to turtle. Outside temperature around 38F and garage temp was 58F.
So the test did not show any clear degradation yet.
Note: I likely drain the battery a bit lower than last time. I did not have GID on the first test, but I remember that there were 4 power bubbles when I pulled in the garage. In this test it dropped to 2 power bubbles when the GID showed 5 and I turned off the car.
edatoakrun
Well-known member
camasleaf said:
Typo?
edit, sorry, I missed that you had a new LEAF "Cayenne Red SL 10/14/12".
TickTock
Well-known member
Thanks for the update. Still a very new car at 50 days of ownership. 0.1kWh is likely below the noise floor for Blink but at least it is in the expected direction. Comes to about 1.33% in 50 days so this measurement puts you on track (but slightly better) with Nissan's own prediction of 6% down in 6 months (for Boston-like climate/use model).
Rauv
Well-known member
Second VLBW (plus about 1 mile of driving to get home) but no turtle, to 100% charge for me since I bought the car:
Total wall energy: 23.07 kwh
Time of charge: 6hr. 23min. (L2 charge)
Miles: not measured - charge during the day
M/kwh: Not measured.
Battery Temp after chgarge: 4 TB
Ambient Temp: 33.6F at charge end.
No pre-heating including in reported charge energy
Plugged in at 4:16 PM
Began charging immediately via overrimde timer button
Finished Charging: 10:39PM
8457 total miles on the car
Measured using Wattnode Pulse meter (+/-)0.5% accuracy; two solid core CT's with accuracy (+/-)1.0
Total wall energy: 23.07 kwh
Time of charge: 6hr. 23min. (L2 charge)
Miles: not measured - charge during the day
M/kwh: Not measured.
Battery Temp after chgarge: 4 TB
Ambient Temp: 33.6F at charge end.
No pre-heating including in reported charge energy
Plugged in at 4:16 PM
Began charging immediately via overrimde timer button
Finished Charging: 10:39PM
8457 total miles on the car
Measured using Wattnode Pulse meter (+/-)0.5% accuracy; two solid core CT's with accuracy (+/-)1.0
RegGuheert
Well-known member
RegGuheert on July 11 said:
I did another recharge today from nearly VLBW to 100% using L1. While we didn't see VLBW, we were probably pretty close since we had driven about 3 miles with "5" shown on the GOM and about 2 miles with "4" shown on the GOM. The dash was only predicting 15.0 hours for a full recharge using L1, which seemed very low to me, so I decided to perform a test. Ambient temperature was about 35F at the end of the charge. Here are the numbers:RegGuheert on October 20 said:
Recharging from VLBW to 100%
Wall energy, L1, just before VLBW - 100%: 24.74 kWh
Time, L1, just before VLBW - 100%: 16.0 hours
I can only estimate L2 equivalent energy, but my estimate is certainly fraught with errors. To do this, I will assume L2 charging would have finished in 1/3 the time, or about 5.3 hours. During the additional 10.7 hours, I estimate 300W of power consumption by the LEAF for pumps, etc., for a total extra waste of about 3.21kWh. That gives:
Wall energy, L2 estimated: just before VLBW - 100%: ~21.5 kWh
This result is about 4.5% less than the previous result at 70F, but the car wasn't quite to VLBW, so the comparative reduction is some unknown amount less than 4.5%.
Odometer reading for this charge: 9038 miles
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