GregH wrote:My general rules of thumb are:
Charging to 100% is fine as long as the pack doesn't sit at over 80% for a long time (5+hrs)
Driving down to 1 bar is not a problem although probably wise to avoid full throttle acceleration when the range number is blinking.
If the last bar is gone and no range number, drive really mellow and plug in ASAP.
With those rules in mind, here's something to consider for those of us who normally charge (via timer) to 80%: If the battery is pretty low when we get home, rule 3 says we should plug-in ASAP. However, that requires a timer override which also has the side effect of charging all the way to 100%. So if you get home in the evening with a low battery, forcing an immediate charge means the pack will likely spend several hours at 100% before the car is driven again, unless you interrupt it mid-way and let the timer finish the charge later.
It also sounds like (even for us 80% chargers) it's probably better to set an end-time for charging rather a start-time. This bugs me as I hate passing any opportunity to charge (like closer to when I get home), since any late-night emergency (unplanned trip) or early morning power-failure could present a problem which could have been avoided.
I'm not sure I'd like to see the car's charge timer made any more complicated, but I can see an argument for a setting to "charge me a little right now if I'm really low, then stop, and finish it off in the morning".