Optima Red Top 34/78 (9004-003) - trunk mounted.
https://www.optimabatteries.com/products/redtop-34-78
Has standard and GM style battery connection.
Car starting hooked to the standard posts and
the GM connections have a Battery Tender extension
cord. I can hook up and trickle or top off charge
without venturing into the trunk to connect. Can
also connect a small Battery Tender voltage indicator to
the extension cable for status check.
https://www.batterytender.com/Batter...84370000000154
Battery is currently 3 years old and still going strong.