I am finding contradicting information on wiring a charger and a inverter to a 3 battery system

[JDamery]

I recently purchased a boat (1998 maxum scr2400) and I am bringing it into the 21st century with the wiring. The charger does not work, and I would like to wire in a power inverter. I have purchased a ProMariner pronauticp 1240 charger, and a TruePower Combi 2000w PS inverter. I have three batteries(Optima D34M). Does someone have a wire diagram that shows proper wire hookups. I have anchor brand spools of wire, marine heat shrink, 1/0 awg, 4, 8, 10, 14 awg.... I have three 60amp blue sea breakers, blue sea class t fuse/holder. I want to get this right the first time around. any help?

 

[alldodge]

Howdy
Being a 24 footer it should be a single engine so one alternator

Does it have a generator, and how do you want to connect the 3 bats?
What is the load on each?

 

[JDamery]

Howdy
Being a 24 footer it should be a single engine so one alternator

Does it have a generator, and how do you want to connect the 3 bats?
What is the load on each?

Single engine, yes. No generator. I do have a portable generator that I can run when Im on shore somewhere, with an extension cord. I will NEVER run the gen aboard.

I would like one bat to be engine, the other two house.

 

[JDamery]

Also, Im in no rush to get this done, but when I start, I would like it to be a start to finish relatively quick. So, If i need other components, then I can wait till i get those before i start

 

[alldodge]

Then you need a 2 bank charger and a ACR. The start bat remains the same, just need to add the ACR and connect the house circuits to the dual bat

 

[JDamery]

Then you need a 2 bank charger and a ACR. The start bat remains the same, just need to add the ACR and connect the house circuits to the dual bat

My brain hurts...lol. Would someone be willing to draw a diagram for me? I am definitely overthinking this.

 

[JDamery]

This is a pretty quick sketch of what I am thinking, hopefully it makes sense, if not I can drive in better detail

 

[alldodge]

This is my take using one inverter/charger (inverter does both charging bats and makes AC). The ACR will charger both banks when motor is running or when plugged into shore power. If your using separate chargers and inverters, just connect the charger to the start bat and ground

What do you plan to use the inverter to run? The load of the appliances will need to be determined to know if bats have enough capacity. Can increase capacity by using Lithium Ion bats ($1K each) because they can be drained below 50%

 

[Bt Doctur]

Typically a 1200 watt at full load draws 60-80 amps DC input

 

[JDamery]

This is my take using one inverter/charger (inverter does both charging bats and makes AC). The ACR will charger both banks when motor is running or when plugged into shore power. If your using separate chargers and inverters, just connect the charger to the start bat and ground

What do you plan to use the inverter to run? The load of the appliances will need to be determined to know if bats have enough capacity. Can increase capacity by using Lithium Ion bats ($1K each) because they can be drained below 50%

View attachment 326878

I may actually go the Lithium battery route. I like longevity, so could you recommend a good brand? budget isnt a concern

 

[alldodge]

I may actually go the Lithium battery route. I like longevity, so could you recommend a good brand? budget isnt a concern

Just realized there were Lithium bats about a month ago on another forum, so I have not looked into which is better. If they last then the cost would be worth it.