Preconditioning FAQ Apr 16, 2016 21:05:18 GMT -5
Post by afadeev on Apr 16, 2016 21:05:18 GMT -5
If you are spending your own money on an L2 charger, please buy one that will support full 30 Amp charging.
Apr 16, 2016 19:04:01 GMT -5 Amory Lovins said:I live in the high Rockies, am about to lease a 2015 i3 REx, have a normal L2 EVSE from AeroVironment, and am considering buying the same firm's TurboCord for a second location. The TurboCord needs a 240V 20A circuit and hence charges at 240V but more slowly than a full L2 EVSE. Can anyone please tell me whether this method of charging will allow me to precondition both cabin and battery? If so, should I allow more than 3h lead time before departure, e.g. 4-5 h? Thanks!
There are plenty of them on the market for around $500:
There is absolutely no reason to purchase an L2 charger that can not support the full charging capacity of your car!
While at it, make sure you to order one with a long-enough cable (at least 20 or 25 feet) - measure your garage / parking location distance to the place on the wall where you plan to mount the charger.
Since BMW does not publish the battery and cabin preconditioning current draw, it's impossible to answer your question with certainty.
Even an L1 charger will allow you to precondition the car, but doing so will draw more current that the L1 charger delivers, thus draining the battery.
My 30Amp L2 charger can precondition and charge at full rate at the same time. So will yours, as long as you don't compromise on 16Amp or 20Amp EVSE's.