Gringo, you nailed it. The vehicle sits for days at a time and then is usually only driven a few minutes to the grocery store.
I should either take it out and drive it once in awhile for an extended time and or leave it on a slow charge over night.
I'd recommend getting a trickle charger. There are a couple, maybe several brands out there that will trickle charge and then tend the battery once full charge is achieved. Battery Tender is popular. I have a
Battery MINDer. They are small and cheap enough you might consider mounting or stowing it under the hood someplace for convenience.
