3 bank battery charger. How many amps needed?

[AKBASSKING]

I like that....

I know just the hole to hide too with it!

 

[jmagdaz]

I just ran into this. Make sure you get the right charger. I had a Promariner Pro-sport and the company told me it was the wrong charger as it was not designed for a constant draw such as bilge pump, cabin lights etc. They recommened the Pronautic 1240Ci that Todd has suggested above.

Same exact thing here. Went with the pro nautic 30amp 3 bank. ALL my charger issues r a distant memory. It sure is nice to start checking some things off the list. Lol

 

[Voodoochild330]

Well after a lot of research of different products, I am going to need a 4 bank smart charger with a fast recovery time. I am away from my slip every weekend on the hook in a large raft up. My fridge runs all weekend (only keep meats in it, and only open to get at it), The Vacuflush system a few times a day, lights at night (most LED), We run the windlass frequently throughout the weekend for adjusting to keep us right on the beach (Ocean tide change), Water pump does not run much, but my big problem is the 80 amps that my stereo pulls when is flat out while partying at night (3 amplifiers 1900 watts, four 8" coaxials, and a 12" R series competition subwoofer.) Our boat is the entertainment for the raft. Looks like the Promariner tournament 300 quad might do fine. Its a 3 step smart charger that will deliver 30 amps to any low battery at any time, with a recovery time of 3-5 hours. Example: if I have drained one of my 4 group 31s with the stereo syst., and the other 3 are fully charged, all of the chargers available amperage will be directed to that one low battery, and when its topped off, the charger will go back to maintaining all 4 banks. Im open to any other suggestions, as this is my first venture into the battery charger world. Thanx.

Sorry to open up a REALLY old thread but most people don't run the kind of stereo draw that I do so you are one of the few that can comment.

I'm running closer to 8,000 Watts... How did the house batteries react to the 6v cart batteries? I wanted to run the AGM cell batteries for my house which are currently for my stereo, and do the stereo batteries with the 6v cart batteries (reversal of your setup).

 

[Drifter22ft]

Thanks guys just got a 88 sundancer 3000 and about to add a 4 th battery and look into a charger I think I have the oem one right now that put out 35 amps but don’t trust it in my head right now gave me some ideas

 

[Iprof]

If you research charging batteries and Xantrex has great information on their web site you will find that batteries should not be charged at more that 20% of its amps capacity. A 200amp battery bank should not be charged at more than 40amps. The batteries can be damaged by a higher charge. My Xantrex is a 50amp charger but because it uses a link system to monitor and charge the batteries I've never seen it over 50amps. A 50amp 3 bank charger is not necessarily 50amps in each bank but 50amps shared over the 3 banks. My system takes 13amps away from the 50amps so in theory that would leave 37amps to charge my main bank. A smart charger will adjust the amps going into the battery as the battery excepts the charge. A battery that is down 20 amp hours on a smart charger would receive a higher amp charge than a battery that is down 10 amp hours. A battery should only be discharged by 50% of its amp hour capacity in my case I had 225 amp hours so a could only discharge the batteries 112 amp hours. A 20 amp hour charger is going to take over 5 hours to fully charge that bank. There is no rapid charge or fast charge on a lead acid battery. I got over 7 years from my Interstate golf cart batteries investing in a good charging system made that possible.

 

[jrybak]

Well after a lot of research of different products, I am going to need a 4 bank smart charger with a fast recovery time. I am away from my slip every weekend on the hook in a large raft up. My fridge runs all weekend (only keep meats in it, and only open to get at it), The Vacuflush system a few times a day, lights at night (most LED), We run the windlass frequently throughout the weekend for adjusting to keep us right on the beach (Ocean tide change), Water pump does not run much, but my big problem is the 80 amps that my stereo pulls when is flat out while partying at night (3 amplifiers 1900 watts, four 8" coaxials, and a 12" R series competition subwoofer.) Our boat is the entertainment for the raft. Looks like the Promariner tournament 300 quad might do fine. Its a 3 step smart charger that will deliver 30 amps to any low battery at any time, with a recovery time of 3-5 hours. Example: if I have drained one of my 4 group 31s with the stereo syst., and the other 3 are fully charged, all of the chargers available amperage will be directed to that one low battery, and when its topped off, the charger will go back to maintaining all 4 banks. Im open to any other suggestions, as this is my first venture into the battery charger world. Thanx.

My boat is also the center of a large group, i went all in this off season with new AMGs Odyssey Extreams and the charger, Skila IP44 3bank from victron eng

 

[SCORPIO]

Sorry to open up a REALLY old thread but most people don't run the kind of stereo draw that I do so you are one of the few that can comment.

I'm running closer to 8,000 Watts... How did the house batteries react to the 6v cart batteries? I wanted to run the AGM cell batteries for my house which are currently for my stereo, and do the stereo batteries with the 6v cart batteries (reversal of your setup).

8000 watts! What are you driving a stack of Marshalls?

 

[Sublimetime]

8000 watts! What are you driving a stack of Marshalls?

Anchor near him????

 

[Drifter22ft]

I also have a 88 300 as old charger seem to work great but I don’t have a big stereo system