Boat occasionally used non 10-15 day cruises but mostly day sail with slip power. Have generator
which I use to top up on cruises. Batteries are 1 starting, 3 house all AGM
group 31. Old charger
, prosport 20 (2 bank), may need to be replaced. I gets hot attempting to charge new fully charged batteries so I shut it down. It is wired 1 zone to 2 house batteries and the second to the 3-rd house battery
. I am thinking 20A/ 10 per zone is plenty for an on board charger
time is not a big concern. Anything less than 12 hours would probably be fine.
I am interested in thoughts on the need for a 2 or 3 zone charger and specific brand/model suggestions/ experiences. I am willing to buy what I need but hate to overspend when not necessary. My electrical
expertise is limited and I am much more interested in making a good decision then extending my technical knowledge.