80% charge

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ELray
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Re: 80% charge

Post by ELray » Tue Sep 08, 2020 7:26 am

Wasabi Pea wrote: ↑
Mon Sep 07, 2020 10:23 am
Interesting, thanks SammyD for some empirical data which always trumps opinion...I've seen several people refer to cell balancing, does anyone have anything official they can share on this?
Yes sir. If you want to balance the battery the "best" way, the official way is to drive the car as low as possible. Somewhere between 0-10% would be good.
Then have the car unlocked and turn on the hazard blinker. Start charging the car with a granny charger, let the car charge up until it stops charging with the car unlocked and the hazard lights on. Caution: This will take a long time, so you should do this in a locked garage.

I did this, and gained about 7kWh.
πŸ‡³πŸ‡΄ Norway
πŸ’₯I-Pace S Edition
πŸ’₯Build date: 1 Feb 2019 | Delivered: 15 March 2019
βš™οΈH264: 06.01.20
βš™οΈH280: 02.07.20
βš™οΈTelematics: 18.2 (24.07.20)
βš™οΈInControl: S20B1_20.30.2-578440 (12.08.20)
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kermit68
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Re: 80% charge

Post by kermit68 » Tue Sep 08, 2020 7:32 am

ELray wrote: ↑
Tue Sep 08, 2020 7:26 am
Yes sir. If you want to balance the battery the "best" way, the official way is to drive the car as low as possible. Somewhere between 0-10% would be good.
Then have the car unlocked and turn on the hazard blinker. Start charging the car with a granny charger, let the car charge up until it stops charging with the car unlocked and the hazard lights on. Caution: This will take a long time, so you should do this in a locked garage.

I did this, and gained about 7kWh.
Seriuosly ? :shock:
MY20 Yulong White SE, 20", air suspension, privacy glass, black pack and other fine stuffs

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ELray
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Re: 80% charge

Post by ELray » Tue Sep 08, 2020 7:59 am

kermit68 wrote: ↑
Tue Sep 08, 2020 7:32 am
ELray wrote: ↑
Tue Sep 08, 2020 7:26 am
Yes sir. If you want to balance the battery the "best" way, the official way is to drive the car as low as possible. Somewhere between 0-10% would be good.
Then have the car unlocked and turn on the hazard blinker. Start charging the car with a granny charger, let the car charge up until it stops charging with the car unlocked and the hazard lights on. Caution: This will take a long time, so you should do this in a locked garage.

I did this, and gained about 7kWh.
Seriuosly ? :shock:
I am a bit unsure about the 7kWh figure. But thats what I could read from the ODBII port with the app Power Cruise Control.
I went from 340km range to 420km. It’s now about 410km at fully charged.
πŸ‡³πŸ‡΄ Norway
πŸ’₯I-Pace S Edition
πŸ’₯Build date: 1 Feb 2019 | Delivered: 15 March 2019
βš™οΈH264: 06.01.20
βš™οΈH280: 02.07.20
βš™οΈTelematics: 18.2 (24.07.20)
βš™οΈInControl: S20B1_20.30.2-578440 (12.08.20)
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kermit68
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Re: 80% charge

Post by kermit68 » Tue Sep 08, 2020 8:37 am

To my knowledge (but I could be wrong as I'm not a JLR engineer), cell balacing is perfomed every time you leave the car charging up to 100% and leave the charger connected after reaching 100%. Also, I never performed the procedure as you described but wattcat is reporting for my car 87 kwh ath the end of each charging. After a year and a half I cannot immagine I can have such energy in the battery without having performed a single cell balancing.

Interesting, last week I had some free time and I charged up to 100% at a DC 50kw charger. After reaching 100% with the battery temperature at 31Β°C, the car paused the charge and started to cool he battery down to 28Β°C. After reached that temperature the charging has been resumed at a very slow speed (0,8kw according to wattcat) for more than 20 minutes. The total kwh increased from 86.4 to 87.1. That sounds as cell balancing to me.
MY20 Yulong White SE, 20", air suspension, privacy glass, black pack and other fine stuffs

Maxwell_400
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Re: 80% charge

Post by Maxwell_400 » Tue Sep 08, 2020 12:30 pm

kermit68 wrote: ↑
Tue Sep 08, 2020 8:37 am
To my knowledge (but I could be wrong as I'm not a JLR engineer), cell balacing is perfomed every time you leave the car charging up to 100% and leave the charger connected after reaching 100%.
I do not think that is accurate, the car disconnects the charger when it reaches 100%. If I start climate it will reconnect again.
I-Pace SE++, MY20, 18" summer & winter, no panoroof, towbar, spare wheel, H264, H280, TCU 18.2, BECM: BP-AAE-BC-AC-BE

Abu Dhabi Dude
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Re: 80% charge

Post by Abu Dhabi Dude » Tue Sep 08, 2020 12:50 pm

Jaguar changed the way the car charges after h280. It now balances the cells throughout the charge cycle, not just when it gets to 100%.

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ELray
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Re: 80% charge

Post by ELray » Tue Sep 08, 2020 10:30 pm

If you claim you batteri life is bad, the workshop will perform the action I described above before they do anything.
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πŸ’₯I-Pace S Edition
πŸ’₯Build date: 1 Feb 2019 | Delivered: 15 March 2019
βš™οΈH264: 06.01.20
βš™οΈH280: 02.07.20
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RobN
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Re: 80% charge

Post by RobN » Tue Sep 08, 2020 10:58 pm

elbocko wrote: ↑
Mon Sep 07, 2020 7:31 pm
hml wrote: ↑
Mon Sep 07, 2020 7:50 am
Mine shows 100% when I charge it. I charge over-night when the car is down to 20% - 30%. The frustrating thing is that it appears to only give me 230-240 miles on a full charge
I would suspect that 240 miles ish is about normal unless you are Chewy or Jan.
Yep, I also get between 235-240 miles on the range-ometer when SOC reads 100% and that’s been consistent over the the last 2,500. I think for most drivers that’s about average?

I also generally charge to around 80-85% unless the night before a long journey and definitely when on rapid charge away from home (that last 20% takes too long to make sense).

Best, Rob
SE MY20 Corris Grey, 20” wheels, oyster leather 10 way seats, panoramic roof, black trim + privacy glass + 7kWh Podpoint & ICE XK8 Conv 1996 (Jag owner/enthusiast since 1994 :D )

CaptainJAG
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Re: 80% charge

Post by CaptainJAG » Wed Sep 09, 2020 11:12 am

The way to charge the car when unlocked and hazard lights on... what is the clue on that?
When the car is unlocked, it might run a different charging program, ok, but the hazard lights?
I charged the I-Pace from 10% to 100% two days ago with my wallbox reduced to 10A / 2,1kw charging power (granny charger equivalent).
And I do not see any big changes in kwh avvailable... indeed, the power cruise control app shows 81kwh available , Wattcat 83,75kwh....
I try to recharge from 96% to 100% with the car unlocked now... maybe thats the point πŸ€”
I do not have a garage to test the hazard light procedure πŸ˜‚

Is there a document, where the procedure is explained or listed?

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ELray
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Re: 80% charge

Post by ELray » Wed Sep 09, 2020 11:27 am

CaptainJAG wrote: ↑
Wed Sep 09, 2020 11:12 am
The way to charge the car when unlocked and hazard lights on... what is the clue on that?
When the car is unlocked, it might run a different charging program, ok, but the hazard lights?
I charged the I-Pace from 10% to 100% two days ago with my wallbox reduced to 10A / 2,1kw charging power (granny charger equivalent).
And I do not see any big changes in kwh avvailable... indeed, the power cruise control app shows 81kwh available , Wattcat 83,75kwh....
I try to recharge from 96% to 100% with the car unlocked now... maybe thats the point πŸ€”
I do not have a garage to test the hazard light procedure πŸ˜‚

Is there a document, where the procedure is explained or listed?
They say you need to have the hazard lights on and car unlocked to stop the car from going into a sleep mode. I guess this keeps perhaps the TCU busy, who knows..

There is a document/ service bulletin on this procedure in topix. You need to have access to it. That cost money!! πŸ’° πŸ’΄
πŸ‡³πŸ‡΄ Norway
πŸ’₯I-Pace S Edition
πŸ’₯Build date: 1 Feb 2019 | Delivered: 15 March 2019
βš™οΈH264: 06.01.20
βš™οΈH280: 02.07.20
βš™οΈTelematics: 18.2 (24.07.20)
βš™οΈInControl: S20B1_20.30.2-578440 (12.08.20)
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