Since the last 2 firmware updates, my 70D battery seems to diminish faster than normal when parked. Before it was an average of 3 miles overnight, sitting in the basement parking. Lately, it has gone up to 6 miles! That's double!
And not always overnight, sometimes it could be during the day while parked outside my workplace.
Today around 2pm I returned to work with 189 miles of charge. I came back to my car at 9pm and my battery was at 183 miles.
I've tried manually powering the car 'off' when it's parked, but that doesn't help as the next day my battery has diminished 6-7 miles. I keep thinking maybe my valet drivers drove my car around outside overnight while I was in bed but my odometer proves me wrong.
This morning it diminished only 3 miles. But during the afternoon, like I stated above, the battery went down 6 miles while parked outside for 6 hours! (That's a 9 mile loss just parked!) I know Los Angeles weather has been a bit cooler lately but it hasn't been so cold as to affect the battery that much, has it?
I've turned off cabin-overheat protection and the 'always-connected' feature. The car is also in range mode.
At this diminishing rate, if I go away on a holiday for say a month, and leave my battery at 90%, my battery would be dead or nearly dead by the time I get back.
What could be eating up the battery faster? :-( Help..!