Onboard battery charger settings

[Gus]

I just picked up a cabelas pro sport 12 2 bank onboard charger and a pair of group 27 cabelas AGM batteries. I'm finding just a bit of conflicting information on setting the charging profile on the charger.

The batteries state: Float rate of 13.5 - 13.8, charge rate of 14.1 - 14.4.

Batteries say specificlly not to charge at a higer than 14.4 rate.

The charger manual says specifically that AGM batteries are not GEL batteries, however when looking at the charging profile voltages, it appears as though the GEL setting is the closest to what the batteries are asking for.

Charger states: Standard flooded or AGM batteries: Float rate 13.4, charge rate 14.6. (float rate appears to low, and charge rate too high)

Charger States: GEL: Float rate 13.8, charge rate 14.1 (both within batteries specs, however not GEL battery)

Charger states: AGM High performance: Float 13.6, charge 14.7. (Charge rate seems too high)

So should I go with the GEL setting? It seems the charge and float settings line up the best.

Thanks!

[grizzly]

I would use the acid setting. from what I know you should not hurt a lead acid/agm battery usig a gel charger but will hurt a gel battery using an acid charger because the gel batteries need to charge slower than acid.

The float rate is only if you plan on leaving the charger on the batteries continuously even after they are charged. If you use the boat frequently you don't need to do that. I would only do this when your batteres sit over the winter