Tesla powerwall outside vs inside garage installation
Context:
I live in the houston area. Im getting close to the install date for my solar with 2 tesla powerwall3's. I have a detached 3 car garage. I am not using the single car space currently, and that single garage door is almost flush with the side of the garage that has my power meter and main breaker box. So I have two otions. Either install the powerwalls in the garage 3 feet off the ground and hope that does not restrict any future owner from using that space for a car if they want to. Or mount them on the outside of the garage and not effect the functionality of the single car space.
Question:
Originally I was planning in having the batteries installed on the outside of the garage. But thinking more about it, I know batteries dont like extreme temps. Will the winter occasional freeze and the hot humid summers have a noticeable impact on the battery performance or am I over thinking it. The garage is not temp regulated but should insulate the batteries from the extremes being in the garage. So is it really worth having them installed in the garage or is the performance impact small enough that I should stick with my original plan and have them installed outside. They would be on a west facing wall and would only be exposed to direct sunlight a few hours in the afternoon.