I have a 2010 v8 and just put an AGM H8 in. So far so good. I went through two diehards in two years. I know the charging system had changed over the years so I am not sure if the two are apples to apples. Last night I did a double feature at a Drive-In so the radio was on for almost 4 hours. The lo...

The charge rate/voltage required by AGM batteries is a little different than for standard lead acid. Hence why (better/more expensive) newer battery chargers will either say "for AGM" or have a switch to modify the charge rate characteristics/voltage for AGM. You can put an AGM into a vehi...

Was some discussion on another site about batteries, see https://forums.swedespeed.com/showthread.php?371945-Replacement-Battery-Questions and https://forums.swedespeed.com/showthread.php?314129-How-old-is-my-battery for a couple examples. Both H6/48 and H8/49 batteries may be fitted (battery bracke...