fenlander
Posts: 22
Joined: Tue Mar 18, 2014 10:02 am

Failed to Charge

Tue Apr 01, 2014 3:02 am

Has anyone else had issues with the i3 failing to charge overnight during off peak hours?

It has been fine, charging exactly as expected, but last night something didn't work right and it didn't draw any power. This morning when unlocking the charging flap flashed red and there was a message about failing to charge on the dashboard display.

Plugged it back in now and it is charging fine on 'immediate charge'.

What could have upset it last night? Has anyone else seen this? Is the car playing a cruel April fools joke?

[Using a BMW Wallbox.]

BrianStanier
Posts: 255
Joined: Sat Oct 19, 2013 12:00 pm
Location: Durham, UK

Re: Failed to Charge

Tue Apr 01, 2014 3:58 am

Problem with adjusting to summer time?

fenlander
Posts: 22
Joined: Tue Mar 18, 2014 10:02 am

Re: Failed to Charge

Tue Apr 01, 2014 4:36 am

BrianStanier wrote:Problem with adjusting to summer time?
Don't think so.. the iPhone app did send me an alert on Sunday saying that the estimated charge completion time had changed, which was nice, but it did complete the charge anyway, and yesterday was fine.

If it happens again I'll call the dealer.

kentheteaman
Posts: 77
Joined: Sun Oct 20, 2013 5:11 pm
Location: County Surrey, UK

Re: Failed to Charge

Tue Apr 01, 2014 7:10 am

fenlander wrote:Has anyone else had issues with the i3 failing to charge overnight during off peak hours?

It has been fine, charging exactly as expected, but last night something didn't work right and it didn't draw any power.

[Using a BMW Wallbox.]


It happened to me as well day before yesterday.
I had departure time as 7pm night.
Pluged the car at 1am.

Next day it has only charged me 50%.

So changed the departure time at 6am and pluged the car at 10pm last night. It has fully charged today.

I am not sure what is going on.

2.
Also my car does not follow off-peak charging rule even though the option is clicked.
It starts to charge the moment it is connected.

:?

Paul1886
Posts: 41
Joined: Sun Dec 01, 2013 9:54 am
Location: U.K

Re: Failed to Charge

Wed Apr 02, 2014 3:16 am

Ken,

I have read in other posts that it will always immediately charge if the charge level is below 30%, my understanding is it then stops and picks up again at the off-peak time.

Apparently BMW like to see a minimum of 30% for good battery care.....

Don't know if any of this is true as I don't get mine until Saturday. :-)

Paul
Finally Born Electric 05-04-2014...........REx Laurus Grey, Loft, 20" All boxes ticked :)

Bunter
Posts: 372
Joined: Sun Nov 17, 2013 3:41 pm
Location: South Central England

Re: Failed to Charge

Wed Apr 02, 2014 4:16 am

I've said it elsewhere but the rule set for charging isn't as simple as the two user settings would imply (charge immediately and charge off peak according to a time window).

In particular I think the car uses the following parameters when deciding if it should charge.

State of charge - if below a certain figure it charges
Set departure time/off peak window - if peak charge window falls after the next departure time it charges.
Set rate of charge - not sure about this I need to do more testing.

Bill
Born Electric 15.03.14

BasilHead
Posts: 1
Joined: Thu Apr 03, 2014 3:01 am

Re: Failed to Charge

Thu Apr 03, 2014 3:32 am

Must say I love this car
but had a similar experience today.
Plugged the i3 (rex) in last night at 21.15 ( for immediate charge) (BMW pure charger)
plug in, lock, and leave... anyway I noticed in the morning it only has 50% charge - via Iphone app -(that's what I left it with last night - I think)
ie it hadn't charged,

when got to the car
I Noticed the flash red round the 'electric filler point' __ _ _ _ __

I unlocked the car removed the plug
re plugged it back in
re locked and it began to charge and 'filled' as expected

The trick here is to make sure its charging before you leave

I had previously programed the car (this was turned off a week ago and before this event) to start charging at low rate (1.30- 5.00) with preconditioning for departure at 8:00am
any have turned all that off now... although I think I left the precondition program enabled - now its turned off because the charger woke me up as it turned on with a "Clonk"

I have just been told (by the supplying and helpful dealer) as long as the car is plugged in it will keep the batteries at the right temperature
the precondition (on the REX model) only warms the cabin for comfort sake .... a misunderstanding on that point

We are exploring uncharted waters here
Dealers don't live and depend with the car - so very shortly we will know more than them

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

Re: Failed to Charge

Thu Apr 03, 2014 4:21 am

BasilHead wrote:I Noticed the flash red round the 'electric filler point'
This indicates that there's been an error rather than a mix-up with the timer settings ? Was the light on the wallbox button also also flashing red or just the socket on the car ? Did you get any message in car about it ?
BasilHead wrote:I have just been told (by the supplying and helpful dealer) as long as the car is plugged in it will keep the batteries at the right temperature
This might explain why I can hear it clonking at night before charging is due to start on the 'cheap tariff'.

SanSerif
Posts: 175
Joined: Mon Aug 05, 2013 11:09 am
Location: Southern UK, EU.

Re: Failed to Charge

Thu Apr 03, 2014 8:31 am

I'm fairly certain I've had a red charge port in the morning (I think I mentioned here). It seemed to be related to setting a pre-condition time and not having sufficient time for the car to charge before I wanted to leave.

Since I've binned all the pre-set departure times and use the app to pre-warm I've not been puzzled by mysterious charging patterns.

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

Re: Failed to Charge

Thu Apr 03, 2014 11:36 pm

SanSerif wrote:I'm fairly certain I've had a red charge port in the morning (I think I mentioned here). It seemed to be related to setting a pre-condition time and not having sufficient time for the car to charge before I wanted to leave.
Strange, there's been two times where I've been very late plugging my car in so it didn't have enough time to fully charge by the time it got to my departure time and I didn't see the red flashing light although I have doubts about how consistent everything is so it wouldn't surprise me if that did happen at some point.

The handbook isn't that helpful, it just says "Light red: error with charging".

If the wallbox light is also flashing red you can hold it down for 5 seconds and it will start flashing a different colour code to give more info about what caused the fault.

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