jamie94bc
Well-known member
Does anyone know how much energy (approx. in kWh) the preheat process consumes? I know this is going to vary depending on the ambient temperature etc. Might try to watch my OLEV meter tomorrow morning.
This is what happens on the Leaf using the supplied EVSE charger (10A). But a 16A or 32A supply from a wallbox or equivalent is (I'm told) enough to satisfy the heating requirement without depleting the battery. I guess the i3 will be similar,Stevei3 said:Hi Guys,
my guess this is because the preheating draws more power than the plug provides.
Steven
bmwi3ownercom said:I checked the power meter this morning.
1) Car showed 100% charged in iRemote app and it was not using any power from the outlet
2) Started the preheat through the iRemote app
3) Fans started and power meter immediately showed about 1.5A (220V)
4) A few seconds later it went up to maximum current (I would think to top up the batteries)
Just like one would expect.
This was on a BEV with heat pump in Stockholm with about 6 degrees Celsius
If you are new to the i3 or is thinking of buying one read more about some of the smart functions here
http://bmwi3owner.com/2014/02/winter/
Power measured with amp meter at homeLecram said:Where did you read the power consumption? Did the app/car show this or do you have an Amp meter at home?
VintageMark said:Everything seems to be pointing the way of your explanation Tom...
In which case that's a shocking piece of design/engineering from BMW... especially on a car designed from scratch to be an EV.
Not something that would stop us getting the car of course... but horribly disappointing none the less..
I'd like to this it was something easily fixed in software... but given your feedback and the lack of correction... I am guessing it is not..
Such a shame..
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