5 6 7 bars not too much to worry about. Again, you need to balance pack temps with ambient temps. Heating it up to 7 or 8 TBs and having it stay there for 2-3 days due to high ambient temps is what you need to be watching for. I check the weather for overnight lows since we frequently have very cold nights but every once in a while the low will be like 65 which means the garage in most cases will be heating up well into the mid 80's and beyond early the next day.
Granted you are in a little Sunbelt protected from the elements by the Olympics so a bit of a unique situation but it still gets relatively chilly at night even in Summer, right? You really don't have a lot to be concerned with.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased
. 29,413 miles. 2018 S40; 1607 miles, 490 GIDs, 38.0 Ahr available, SOH 99.65, Hx 112.17
My Blog; http://daveinolywa.blogspot.com
" onclick="window.open(this.href);return false;