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Car is taking so long to charge!

6.5K views 24 replies 12 participants last post by  Snax  
#1 ·
My car failed to charge on its normal 3pin overnight and didn't defrost this morning despite the presets all being on, plugged in and green light on.

Today I've gone to a fast charger (22kw) and the car is saying 3.5hrs to charge - on 35miles, sounds about right. However - been sat here for half an hour and the miles have gone up by 10...

Also noticed on the drive here that the full regen isn't working - can you spot the problem in the picture?

Is this a cold weather issue? Been driving in minus temperatures the last few days.

Might need to ring VW...?

Any thoughts appreciated
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#2 ·
Are you sitting with the heater on? You can only charge at 7kw on a 22kw charger, using the heat in the current weather could use a huge portion of that.
I’d try and find a 50kw CCS.

edit - the lack of regen will undoubtedly be temperature. Charging on a rapid charger should warm the battery and fix that. If a rapid charge doesn’t help things, dealer time.
 
#3 ·
Thanks for the reply - all air/heat is off, just taking ages! I used a 50kw yesterday and it seemed to be much slower than normal - giving about 20 miles in 20 mins - again no heat on.

Still sitting here on the 22kw - now up to 89 miles - saying 1hr 35mins left. Preheat was meant to kick in at 3pm, seemed to try and then switched off (unless it doesn't come on if unlocked, key in ignition...?) Tried leaving heat on for 10mins - air is freezing, not a touch of any warmth.
 
#4 ·
There’s no benefit from a 22kw from a 7kw, you’re better off finding a 50kw if you’ve gone out your way.

The Golf can’t heat the battery, so you’ll get better speeds if you drive for a while (45mins+) before charging.

the heater sounds odd though, that should work.There was a bad batch last year, mine was off the road for a couple of months whilst they sourced parts...
 
#9 ·
Thanks everyone - I was not aware that the 22kw doesn't work as such on the e-Golf! I guess the attached picture shows it working at 7kw speeds. I will try the preheat again for the morning. This cold weather and wind is really killing the range! Still no idea why the charge failed last night.
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#10 ·
Not your fault - dealers really need to educate customers better so you know what you're buying.
 
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#11 ·
Cold is the answer for most of your questions!

When I left for work this morning the car said it was -1.5 degrees. So much for a frost free garage, admittedly it was -8 outside. I had about 30% regen available (your photo shows just under 80% available) after charging to 90% when normally in winter I have about half and summer about 70% available. Even when battery is half empty I've not had full regen available for about the last two months with the colder weather.

Preheating the car from a 7kW chargepoint can use a good chunk of power. Mine starts at about 6kW for a couple of minutes, then settles down to about 1.4kW by about 5 min. I have a heat pump so non heat pump versions may be different. On the screenshot below the blue spike is the car preheating. I'm finding a 15 min preheat while plugged in uses about 1 kWh just now.

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Rapid charging is a lot less rapid in frosty weather. Don't have the data to hand to double check, but I have in my head that on long trips in frosty weather (-3 to -6 type temps) I often didn't get much more than 30kW despite the fact the battery should have warmed up with the driving.

I use the app to switch on the heating while I'm sitting on a rapid charger. Have to restart it every 15 min though, which is a bit of a pain.

And as everyone else has said the golf can only get 7kW on a type 2 AC post, even if the post is capable of supplying 22kW (or 43kW). Rapid charging on CCS is max about 40kW.
 
#14 · (Edited)
Try a different 3 pin plug circuit, if possible, if you got no charging at all from the circuit. I'm guessing you can pull 2.3 kW (10 amps @ 230 V) on your three pin plug?

I live in a mild climate, but even so I found that on a granny lead (120V, 10 amps in USA), the car will not preheat and be fully charged at the preset time because there is some bug in the software that "forgets" there isn't enough power being supplied to the car to support both heating and charging and be able to meet the preset charge time. Even cars with a heat pump have the 6 kW PTC heater to provide heat if ambient temps are outside of the heat pump's operating window. If it is cold enough, the PTC will come on, sucking away all of the power needed for charging.
 
#23 ·
Try a different 3 pin plug circuit, if possible, if you got no charging at all from the circuit. I'm guessing you can pull 3.2 kW (10 amps @ 230 V) on your three pin plug?

I live in a mild climate, but even so I found that on a granny lead (120V, 10 amps in USA), the car will not preheat and be fully charged at the preset time because there is some bug in the software that "forgets" there isn't enough power being supplied to the car to support both heating and charging and be able to meet the preset charge time. Even cars with a heat pump have the 6 kW PTC heater to provide heat if ambient temps are outside of the heat pump's operating window. If it is cold enough, the PTC will come on, sucking away all of the power needed for charging.
Thanks - it worked fine last night. Your theory makes sense - I have no heat pump and in these temperatures it's definitely missed!
 
#25 ·
Maybe of relevance for interested people: AC 7kw, DC CCS 50kw. But, I went to the Braintree Gridserve forecourt at the weekend and the e-golf cannot for some reason connect to the 350kw rudeboy chargers, but loved the 90kw and I got 40 minutes from 10% to 80% for 26p per kwh with a good warm battery.

and if you need it they have a rack of free to use 22kw AC which the on board converter can’t handle so you’ll only get 7kw, but if you just need a coffees worth of juice then it’s a great spot to stop.