Nice post - thought I knew everything but not the 3 hour limit. I've user the iRemote app a few times on the way back from shopping whilst parked at a public chargers thinking well if the battery gets 15 muinutes to warm up... nevermind at least the car was toasty.
I've got a couple of questions that I've been trying to find answers for...
1) I haven't yet got around to experimenting with this yet as I leave before the end of cheap rate electric, but what is the relationship between the timer for low rate electricity and the preconditioner. Eg. you might have programmed off peak between midnight and 7am, but have a departure time set of 8.30am. (I wish). In that case would a) the charge timer allow the battery to be topped up if the off peak charging is set b) the battery run down c ) would preconditioning be stopped at the end of cheap electric? Of the choices... I'd prefer a.
2) What happens if you are a bit slow getting dressed / breakfast / out of the shower and don't make the departure time. From my experience of this (like every day) it seems to keep the heat goign for about 15 minutes and then stops. Not sure of the exact time but I was really late one day and the car had cooled off again! LOL. Just wondering a) what the timeout is and b) if there's a way to say "keep the battery warm I'll be there in 10 minutes" given the 3 hour limit already mentioned. Probably not such an issue given the thermal mass of 230kg of LiIon, and hte cabin can be triggeredf from the iRemote once you finally head off to clean your teeth.
3) The pre-conditioning sends my EVSE into a clunking clicking cycle about every 30 to 60 seconds. I'm assuming the car is requesting current from the EVSE, reaching 100% again and then telling the EVSE - that's enough. Is it just my EVSE that's clunks or do all of them do it? (Rolec 240v 32a with a socket not tethered).
4) Last one - for the first time today - I went out to the car and the battery was not fully charged - was at 75%. Don't know what had happened. The pre-heat was working - the EVSE was supplying power and clunked as I unlocked the car. It definitely took on some charge, as I left it last night at 50%. Checked all settings like charge rate and timers (Max on both Standard and Fast Chargers, Off peak 11:30pm - 7am, Departure 6.15 Precondition on) and can't see why it would have either not charged or dropped charge. Does this sound like a known issue? I've had one where the car charges to 100% when plugged in despite being told to wait till off peak. Wasn't the end of the world - I went the "Fast" way to work on the M6 motorway (UK) and stopped off at Corley Rapid CCS. One that actually works! 50% on arrival - 80% 19 minutes later and back on my way. As the route is 15 minutes quicker than the shorter back roads not much time lost