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Boomer23
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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 2:24 pm

tbleakne wrote: I had understood you were down much more.
Probably because I was whining and griping about what looks like a drop off a small cliff since early May, from 280-281 down to the low 270s, with nothing above 279 appearing since May 9.

I've had my Gidmeter since September, and looking back I see a 257 in late September after a 100% charge from 40 Gids, and a bunch of readings as low as 271, 272, etc in October. So my little dropoff might just be temperature related.

I also notice that many of my low readings were after 100% charges from only zero to 2 bars prior to the charge.

Maybe we should add that to our data collection: bars or Gids at the start of a charging session.

Re tbleakne's request, I've just started recording voltage readings after charging.

Here are a few data points:
May 23, 100% charge from 85 Gid to 275 Gid, 393.5 Volts, low overnight temp 61 F
May 24, 100% charge from 144 Gid to 270 Gid, 393.5 Volts, low temp 59 F
May 29, 80% charge from 163 Gid to 225 Gid, 387.5 Volts, low temp 57 F
May 30, 100% charge from 77 Gid to 274 Gid, 394 Volts, low temp 59 F

I'll keep recording this data, but that's all I have right now.
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EdmondLeaf
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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 2:36 pm

Today I measured temp by the probe placed under carpet of the front seat starting temp 72 currently 82F sunny. Car is in open parking with heat deflector placed in windshield area. Wonder it here is any mechanism protecting heat transfer from floor to battery/battery compartment.
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Ingineer
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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 2:49 pm

If anyone in the SF Bay Area notices lost capacity or loses a bar, I'll be happy to check out the loss with LEAFSCAN so we can get some hard numbers.

-Phil
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palmermd
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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 2:56 pm

Ingineer wrote:If anyone in the SF Bay Area notices lost capacity or loses a bar, I'll be happy to check out the loss with LEAFSCAN so we can get some hard numbers.

-Phil
While not the SF Bay Area, Mike and I were just discussing this yesterday.

http://www.mynissanleaf.com/viewtopic.p ... 76#p201476" onclick="window.open(this.href);return false;

May 29th posts at 16:39, 16:50, 17:03, 17:21 (why aren't the posts numbered like most other forums?)

So far I've not seen any posts about losses in the bay area, but perhaps I've missed something.
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xtremeflyer
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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 3:55 pm

Boomer23 wrote:
surfingslovak wrote:
mwalsh wrote:I was back to the "new normal" - 91.4 / 257 Gids / 393v this morning.
Image
Great to hear, Mike! This appears to be roughly tracking with other Leafs is SoCal.
Boomer23 wrote:Here's another data point.
Great data, thank you for sharing, Boomer. I've noticed that Gary, Tom, 91040 and yourself have the best Gid readings in SoCal. This could be just a coincidence, but I was wondering if it was a bit cooler where you live? Aside from that, I'm not sure why there is such a difference between jp's, Mike's and your Leaf for example. Especially since you appear to be always charging to 100%, which is supposedly harder on the battery.
Well, let's see. I'm about 7 miles from the beach. Summer temps can be 10 degrees warmer at Gary's house. Not sure exactly where TomT is from the beach, but the valleys tend to be warmer. Tbleakne lives in a hot summer area and 91040 is also in one of the warm summer areas. Mwalsh and JPV are a bit further inland than I am, so maybe five degrees warmer in summer.

One thing that stands out to me is that Mwalsh and JPV both have regular commutes on freeways, while Gary, 91040 and I have more intermittent freeway use with days of local driving and shorter mileages interspersed.
I went in for my 1 yr checkup and the recall update 2 weeks ago. I don't have a Gid meter or anything, but my GoM is definitely making me nervous on my drive home. My commute is 72 miles RT, I tend to get 4.0-4.2 on the dash and I'd get home with 4-6 miles left blinking, either 1 bar left, or just disappeared. With the same 4.0-4.2 on the dash, I am now coming home with VLB and --- on the dash. I don't know if its because I've lost capacity or because the recall changed up the GoM and I have more hidden reserve. I'll have to try and catch up with you Phil and have you check my Gids one of these days.

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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 5:03 pm

palmermd wrote: I hope Nissan would help the customer based on this information, but they could just keep it to themselves. GaryGid's friend who was called back to the dealership to have a battery repair after his checkup is a sign that Nissan is using this data to help the customer when necessary.
I thought there was a lot of complaining?

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TonyWilliams
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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 5:20 pm

xtremeflyer wrote: I don't have a Gid meter or anything, but my GoM is definitely making me nervous on my drive home. My commute is 72 miles RT, I tend to get 4.0-4.2 on the dash and I'd get home with 4-6 miles left blinking, either 1 bar left, or just disappeared. With the same 4.0-4.2 on the dash, I am now coming home with VLB and --- on the dash. I don't know if its because I've lost capacity or because the recall changed up the GoM and I have more hidden reserve. I'll have to try and catch up with you Phil and have you check my Gids one of these days.
You dont need a LEAFSCAN to check the count of wattHours with a Gidmeter. There are dozens and dozens of these out there, and I'm sure you can find somebody who will loan you one in a major California city (I have no idea where you are).

The updates to the GoM did not change the values for Low Battery Warning (49 Gid) and Very Low Battery Warning (24 Gid). What the GoM range specifically says is superficial to me.

You are indeed getting REALLY low on power. Should a Gid count show that your battery has dropped in capacity enough to cause this, about all you can do is slow down a bit. I don't know if that's safe, but just a 5mph lower speed can have a big difference.

Sorry to hear this.

mkjayakumar
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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 5:52 pm

You need to find a place to charge atleast for 30 mins in L2 or 60 mins in L1 in your destination.
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surfingslovak
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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 6:11 pm

Stoaty wrote:Yes, but at that time you were still getting 255 Gids from a full charge (9.3% below "normal"). How many Gids are you getting from a full charge now?
John, I believe that Luke's last full charge yielded 224 Gids and 393 Volts on May 22. This is what I have so far, please let me know if you wanted me to make any corrections.
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Boomer23
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Re: Lost a "high-voltage battery status" bar, down to 11

Wed May 30, 2012 6:52 pm

TonyWilliams wrote:
xtremeflyer wrote: I don't have a Gid meter or anything, but my GoM is definitely making me nervous on my drive home. My commute is 72 miles RT, I tend to get 4.0-4.2 on the dash and I'd get home with 4-6 miles left blinking, either 1 bar left, or just disappeared. With the same 4.0-4.2 on the dash, I am now coming home with VLB and --- on the dash. I don't know if its because I've lost capacity or because the recall changed up the GoM and I have more hidden reserve. I'll have to try and catch up with you Phil and have you check my Gids one of these days.
You dont need a LEAFSCAN to check the count of wattHours with a Gidmeter. There are dozens and dozens of these out there, and I'm sure you can find somebody who will loan you one in a major California city (I have no idea where you are).
xtreme and I are friends. Perhaps I can stop by your place one Saturday morning before a breakfast meetup and check your Gids after a full charge. Our Santa Ana meet isn't until June 23, though. We can PM to set something up.
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