Wait a minute. I asked this question and several Forum posters said ANY vehicle can keep them charged. Do you know something they don't know? I'm not being snarky, just asking.
Also - you say "they will last longer than your Expy". Surely you jest? I'm still driving my 2003 Expy, they aint gonna last that long. 5 years is probably good. Sorry if your name isn't Shirley.
Yes, any vehicle can keep an AGM battery charged, just not topped off. This is from my experience running AGM batteries since 1990. I use to be into car audio and have had vehicles with up to 20 batteries installed. At that time Optima was the leader in the industry. Before true AGM chargers where available you use to have to trick the charger into charging a flat AGM by paralleling a standard fully charged lead acid battery to the AGM and hook the battery charger to the lead acid. I have 2 red top Optima’s in my CJ-5 that where new in 1992 still going. Pretty damn good if you ask me. (New Optima’s suck). I bet Artie won’t have that navigator more than a few years. I have ran AGM batteries in 6 dodge diesels, my CJ-5, a Ford Raptor, Ford F-150, Ford 6.7 Powerstroke,Chevy Kodiak, Polaris SXS’s and my new Can-Am X3 and none of those vehicles have been able to top an AGM battery off. The Expy is the first vehicle I have owned with a factory AGM battery. I think it’s a great choice for a vehicle with so many lights, gizmos and ASS. Very robust and can take a beating. But if you just do short trips and use ASS the truck doesn’t have time to charge your battery IMO and it shows when you hook up a charger. Go hook up your fourth Gen AGM equipped Expy to an AGM charger right now and I would bet it needs a charge. Shirley out.
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