Would this work?????????

[chris0061]

I have a Sea Ray 245. I have two batteries in the engine compartment. One has most of the accessories hooked to it and the number two is just for starting. My converter is in the cabin and of course I have shore power, 30 amp and then a pig tail for a regular elec cord. My converter has hook ups for 4 batteries so I have two slots open. What I'm thinking of doing is placing a battery in the cabin with a inverter. I'd hook the battery up to the converter so it would charge with the other two. My question is could I hook up the pigtail with the extension cord plug it into my inverter which would power up the outlets and the converter and be able to use the outlets and the converter keep the battery charged? Or would this just be a stupid idea and a possible disaster???????? Look forward to your responses.

 

[NYBo]

Re: Would this work?????????

Read this thread.

 

[chris0061]

Re: Would this work?????????

yeah thats a little different senerio than mine. My two batteries in the engine compartment will not have anything to do with the inverter battery. The inverter battery will be isolated except hooked up to the converter for charging off shore power and in this case the shore power would be plugged in to the inverter when out on the water.

 

[NYBo]

Re: Would this work?????????

Sorry, I got confused with all the converters and inverters flying around.:redface:

I take it the "converter" is a 4-bank charger. The comments in the other thread about the inefficiency of converting 12 VDC to 120 VAC to run a charger that converts it back to 12 VDC pertain to your proposal. You lose significant energy at each step. It would be far more efficient to use switches to divert battery power where you need it.

A larger house bank (e.g two 6V golf cart batteries in series or two such sets then hooked up in parallel) to run your inverter while underway would help.

 

[NYBo]

Re: Would this work?????????

My question is could I hook up the pigtail with the extension cord plug it into my inverter which would power up the outlets and the converter and be able to use the outlets and the converter keep the battery charged?

The bolded part is what continues to confuse me. Are you talking about using the charger only when on shore power (which is the only scenario that will work)?

 

[chris0061]

Re: Would this work?????????

Well kind of. My thoughts are since my one isolated battery is running the inverter and that battery is also hooked up to one bank on the charger. So I plug my boat shore power into the inverter . The shore power runs the converter and the outlets, refrigerator, and stove. Of course I wouldn't run all that off the inverter but I'm thinking i could run a couple fans and tv. So by the shore power being plugged into the inverter the converter would be running there for charging the battery that the inverter is hooked to. The converter is a 15 amp converter so I may be way out of line on this scenario.

 

[NYBo]

Re: Would this work?????????

So you ARE looking for a perpetual motion machine! You can't charge a battery with a charger that the same battery is powering.

 

[chris0061]

Re: Would this work?????????

I think out of the box sometimes.