AGM battery chemistry is only slightly different the flooded cell batteries. Therefore, no change is necessary to move to them. Though many of the new automatic three stage chargers do have an AGM setting which adjusts the voltages slightly.
I got a set of two Optima Blue Tops several years ago from Sam's. they work great! They are a little smaller then the 24 size. John On 06/28/2010 08:57 AM, mkeller23173 wrote: > Well folks, it's time to replace the West Marine lead acid batteries > unfortunately (low voltage and autopilots do not mix apparently). > > I think I might splurge and get the Deep Cycle AGMs. I know that these > charge differently from regular lead acid batteries and therefore need to > double check the AC Charger and alternator. > > The AC charger is by Charles Marine, a 5000 series. According to the site, > it charges all three kinds of batteries with no settings needed so I think > I'm good on that front. > > Regarding the alternator, does anyone know how to check if it provides the > correct voltage for AGMs? The engine is a Yanmar 20GM20F, but I'm not even > sure where to start looking for info on that one. > > Many thanks, > > Mike > > > > > > ------------------------------------ > > Yahoo! Groups Links > > > >
