brian,

We usually begin with the Guest 2611A 10 amp dual bank charger (5 + 5).

But I really like the ProMariner ProSport 12 and 20 amp models. They may be a little less protected from direct exposure to water but since they're not potted they cool very well. And the distribution scheme will deliver the full capacity to the bank in need. The ProSport 20 is our best seller. Then we graduate up to the ProTech 1240iPlus and to Progressive Dynamics for 60 or 80 amp models. We've got detailed info on our website. Get with me about overall wiring schemes if you're interested.

David
Earmark Marine
[email protected]