So lets say someone has a 2 bank setup consisting of, say, 4 batteries total. 1 main cranking, 3 house. After spending 6 hours at the sand bar blasting the tunes, then a 15 minute ride back to the dock/ramp, I can assure you that 3 battery house bank is not at a fully charged state. Now what? One charger to recharge and then a maintainer for the winter? The proper charger of your brand choice, will do both. Like the NOCO Gen series if thats the brand you are partial to.Quote:
The G4 and the Tender are both adequate for battery layup in a fully charged state
Cant comment on "the tender" without knowing a specific model. But to say " they have one purpose and that is to keep a small charge on the battery and they won't overcharge and dry out the battery" seems like a contradiction to me.
Also, promariner makes a number of models. Since no specific model is named here, maybe not paint them all with the same brush.