I just brought home my 2013 CPO Model S 60kwh (twin chargers, supercharging) a couple days ago. For the first couple of days, i've had it plugged into a 120v 15a outlet using the Mobile Connector. It charges at 12a, at a rate of about 4mi/hr. This has been sufficient to recharge fully to 90% overnight, based on my daily driving of 25-30 miles per day. I now have a NEMA 14-50 50amp outlet installed in my garage, adjacent to the existing 120v outlet. Based on my driving habits (average ~30 miles/day), what's the best practice for health of the battery? Charge from the 14-50 with charging amperage set to 40a Charge from the 14-50 with charging amperage set to something lower (15a? 20a?) Charge from the 120v at 12a (I don't get discounted utility rates at off-peak hours, so there's no inherent advantage to charging quickly in the wee hours vs. charging slowly throughout the night.) Thanks.