shore charger recomendation?

[Cam003]

i will be running 2 or 3, group 27 AGM, with 1200 Marine cranking amps, 950 Cold Cranking AMPS, 180 reserve capacity. Sugestions or recomendation of a good onboard cahrger would be very helpful.
thanks
Chris

[Mikeski]

I am running the ProMariner ProSport20 V2. I am running two Kinetik HC2400 batteries for the tunes and a red top for starting. I called Kinetik and they recommend the high capacity AGM setting for the charge curve. I have been out 3 times since installing the charger and my batteries seem to like it much better than my Schumacher unit.

In discussion with the Kinetik folks they recommended the CTEK Multi US 25000.

Others recommend the Xantrex trucharge units.

[TX-Foilhead]

I got a Noco Gen 3 last winter for a pair of group 27's (stereo bank) and a Deka group 27 AGM starting battery. Pretty cheap on Amazon, 3 bank 30 amp smart charger, never takes more than 2 hrs to top everything offf. It doesn't send max amps to the lowest battery like some, I think 10 amps max, but that hasn't been an issue with the since all the batteries are in good shape when we get home because we run more than we sit. I believe that it is capable of completely charging my stuff (270 amp hrs) from nothing in 6 hrs which means it will always be ready in the morning which was my biggest concern.

[core-rider]

I like my Pro Mariner ProSport20+. It's a 3 bank 20 amp charger and seems to do well with my group 27 and 2 group 24's. I plan to eventually have 3 group 27's once the 24's bite the bullet. From all the research I did they recommend at least a 30 amp charger for that many amp hours, but I had limited space and funds at the time. Pro Mariner makes a 3 bank 30 amp charger as well, but you will have to spend between $450-550 depending on where you get it.

[EarmarkMarine]

Under-charging can be as damaging over time as over-charging. They key to a battery charger is having the right current capacity to reverse sulphation. There are two primary ingredients in the battery to charger equation. First, is the amount of collective battery capacity. Second, is how deep you cycle. Sulphation and current capacity is not an issue on weekend cars, tractors, ATV/UTVs, motorcycles, etc. that are placed into storage with a fully charged battery(s). A basic trickle/tender/minder/maintenance charger might be all you need to confront self-discharge. But, 250 amp/hours of collective battery capacity that is routinely discharged to 12 volts or less may deserve a hefty 30 amp charger. Restoration time is not the concern. Having enough current capacity to chemically excite the batteries and erode sulfation is what's important....but not overboard where you are unnecessarily heating the batteries. Big stereo usage and trolling motor usage have a lot in common. Take your cues from fisherman on how to service deep cycle batteries.

David
Earmark Marine

[gride]

i have 260 amp hours on my stereo side. i have a ctek 7002 so i have to charge the batteries individually which is a pain. i will never cheap out and by flooded batteries again. it's a pain to check the fluid levels all the time.