Buskraut
Posts: 60
Joined: Tue Jan 14, 2014 1:12 pm
Location: San Jose, CA USA

Re: Delayed Charging mode.

Wed Sep 24, 2014 8:06 am

OK, just as I brag about things getting better, I get a new (but better) failure mode last night. I noticed at 6:30am this morning that there was a "charging interrupted" message logged at 2:30am, with the SOC at 93%. In the past this has meant that charging was aborted, never to restart until I unplugged-replugged. However when I checked the SOC, it was at 100%, implying that sometime after 2:30am it decided to resume charging.

I figure I'll bring this up with BMW when I go in for the rumored KLE swap-out.
2014 i3 BEV, Andesite Giga with all options except 20" wheels

noakey
Posts: 398
Joined: Mon Jan 27, 2014 8:11 am
Location: Swindon UK

Re: Delayed Charging mode.

Wed Sep 24, 2014 9:07 am

Buskraut wrote:OK, just as I brag about things getting better, I get a new (but better) failure mode last night. I noticed at 6:30am this morning that there was a "charging interrupted" message logged at 2:30am, with the SOC at 93%. In the past this has meant that charging was aborted, never to restart until I unplugged-replugged. However when I checked the SOC, it was at 100%, implying that sometime after 2:30am it decided to resume charging.

I figure I'll bring this up with BMW when I go in for the rumored KLE swap-out.
Speaking of which... has anyone heard anything about a KLE recall yet?
Neil

BEV at 21,000 miles in first 16 months.
Average 86 miles per charge.
Best on full charge 112miles, worst on full charge 55miles
Loving every mile :)

Plug
Posts: 259
Joined: Fri Aug 02, 2013 1:17 pm
Location: UK

Re: Delayed Charging mode.

Wed Sep 24, 2014 9:19 am

Anyone know what a 'LIM control unit' is ? That's what they replaced on my car last week in an attempt to fix this problem but unfortunately it didn't work and I've only had one night since where it charged without error.

Spoke to them again today and they want to try swapping the LIM again for a different version so that's currently on order from Germany.

tiburonh
Posts: 206
Joined: Wed Jan 01, 2014 4:01 pm
Location: Tiburon, CA

Re: Delayed Charging mode.

Wed Sep 24, 2014 3:28 pm

noakey wrote:
Buskraut wrote:OK, just as I brag about things getting better, I get a new (but better) failure mode last night. I noticed at 6:30am this morning that there was a "charging interrupted" message logged at 2:30am, with the SOC at 93%. In the past this has meant that charging was aborted, never to restart until I unplugged-replugged. However when I checked the SOC, it was at 100%, implying that sometime after 2:30am it decided to resume charging.

I figure I'll bring this up with BMW when I go in for the rumored KLE swap-out.
Speaking of which... has anyone heard anything about a KLE recall yet?
Here's what Tom Moloughney had to say about this yesterday:

Tom Moloughney posted in BMW i3
8:38pm Sep 23
I'm happy to report the new KLE & software update (07-505) has restored the charging rate back to where is was originally. It won't be long for the dealers to begin getting these new units in stock.

DAZ
Posts: 66
Joined: Sat Sep 13, 2014 8:55 pm
Location: Chester, Virginia

Re: Delayed Charging mode.

Thu Sep 25, 2014 2:42 am

:) I've had my i3 just a few days. I've charged it several times with no problems. Last night was the first time I used the delayed overnight charging. Charging started on time and fully charged without any errors, resulting in a full charge. I have a Leviton 40a EVSE. Only issue, coming from a Prius Plug In, the delayed charging procedures are more complex than what I'm used to. The Prius requires only a "start" or "stop" time.
2014 BMW i3 BEV
09/19/14
2012 Prius Plug In
01/22/13
Leviton 40a 9.6kWh EVSE
REVOLTN

ericblz
Posts: 53
Joined: Fri Jun 13, 2014 9:27 am

Re: Delayed Charging mode.

Fri Sep 26, 2014 1:39 pm

DAZ - please keep us posted on your charging. Do you have the REx model? It may be coincidence but it appeared to have issues more often when the battery was drained to below 40%. Yes, setting the departure time is strange but I think it tapers the charging. I set mine for 5 AM (end of low cost period) and turned off preconditioning.

704hov1451
Posts: 11
Joined: Tue Sep 30, 2014 5:28 pm
Location: San Clemente, CA

Re: Delayed Charging mode.

Fri Oct 03, 2014 10:50 pm

For what it is worth, I am a new victim of this problem. Drove off with my new REx one week ago and like so many others have TOU-2 meter to take advantage of much reduced rates after midnight. With my previous Leaf, it was a simple matter of telling the vehicle to start after midnight and finish by 5AM. I have a level 2 AV wall charger left over from the Leaf purchase which has performed flawlessly for 3.5 years, but has no intrinsic timer.

With the REx, I stumbled through the poorly written Owner's Manual--whose instructions do not fully correspond to the actual menus on the Control Display--and set a departure time of 5:30AM, figuring from my prior experience with the Leaf that level 2 charging of a fully drained battery normally took less than 4 hours. After this, I set the charging for "low cost" with parameters of 12:30A start and 4:45A finish.

In the last 2 days I had two long commutes requiring brief use of the range extender and thus a nearly fully drained battery. With the above settings in place, I put the charging cable in at about 7PM. The i3 began charging immediately (at rates about 30% higher than my intention), then shut itself off about 1.5 hrs later, leaving a "charging error" notice in red on my iRemote app. This AM I awoke at 5AM for an early commute, only to discover a 1/3 charged battery. Fortunately I did not have to depart for about 1.5 hrs and I managed to get the battery up to 80% charge, but again at an unfavorable rate (could be worse; rates from 12-6P go up 300%). And it forced me to use the range extender late in the day.

What otherwise defies me is that the Control Display says I am set for Level 1 charging, when there is no such selection (nor, contrary to the manual, a choice to pick Level 2). I wonder if the battery software thinks it is Level 1 and of course then starts charging well before my low cost time zone, since to accomplish a full charge by 4:45A it WOULD have to start more than 8 hrs before. The manual makes reference to a choice to use Level 2, but this is not available on the Control Display.

The business has repeated itself again tonight as I type. This is ridiculous--truly sheds a bad light on BMW. As does the delayed availability of the Smartcharge app.

Amateurs. Perhaps they need to talk to the Leaf development team.

jadnashuanh
Posts: 5177
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Delayed Charging mode.

Sat Oct 04, 2014 1:05 pm

The level 2 menu is down a bit, you have to scroll the screen.
Jim DeBruycker
2014 i3 BEV, 2021 X5 45e
(The i3 will be sold soon, <17K-miles, interested?)

704hov1451
Posts: 11
Joined: Tue Sep 30, 2014 5:28 pm
Location: San Clemente, CA

Re: Delayed Charging mode.

Sat Oct 04, 2014 1:39 pm

Yes, but when you shut the car off the last thing you see on the Goodbye screen is that charging is set for Level 1. Perhaps for economy of space there is no mention of Level 2, but it has me wondering if the car thinks Level 1 is the selected charging option (as a fault in the software), and given the 10-12+ hrs to charge a mostly drained battery, it would make sense that charging would start long before midnight despite the owner's intention to limit charging to the low-cost timeframe.

jadnashuanh
Posts: 5177
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Delayed Charging mode.

Sat Oct 04, 2014 3:58 pm

The vehicle auto senses the input voltage. There is a maximum current level adjustment you can make for both level 1 and level 2 inputs...if you want it to use the full output of the EVSE (or the most the vehicle can accept if you happen to have one that can supply more than 30/32A (depends on country how they rate it), you HAVE to have the charging rate set to maximum.

While that exit screen is visible, you can scroll and see the level 2 info - the screen is only so big, and can only display a little at a time in a font that is easy to read for the masses (no adjustment for that that I'm aware of).
Jim DeBruycker
2014 i3 BEV, 2021 X5 45e
(The i3 will be sold soon, <17K-miles, interested?)

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