I have a model S. The other week while driving a 40mile drive I started around 220miles. The miles were RAPIDLY dropping near the end of my drive. For every mile I drive about 10miles were taken off my miles left to drive. I arrived with less than 65miles on my battery for a 40mile trip. Mind you I saw this and turned off the AC and it still kept draining like crazy. Now I live in an apartment complex and my boyfriend thinks it’s very bad to charge the Tesla overnight (as I’m leaving it plugged in all night) he said it can be bad for the battery and may be why we were losing so much battery life that one day. Could that be the reason? Is it really bad for the battery to be charged overnight or be plugged in after it’s hit it’s full charge?