AGM Batteries - Bow Thruster (or not)

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osubux1

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Freedom 307
I need to replace my main batteries (4), and my AGM are due too (plus they are swelling up). My local service shop referenced the AGMs and said "as the AGMs power your bow thruster...". Now, I know they didn't go in and trace the wiring. I assume they are just guessing that is the case. When I look at the wiring diagrams in my 307 Freedom manual, it looks like the thruster is tied to the standard batteries. My Freedom does have AC (which we never use) in the head/storage area and those are tied to the AGMs. Regardless, because they are swelling I want to replace them. Just trying to piece the wiring together. (The boat is in FL and I am not, otherwise I could check)
Has anyone else had experience in this kind of setup?
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SkunkBoat said:
Are you saying you have AGM batteries that are not the main batteries pictured?
Click to expand...
Correct. In the stern, I have a row of 4 "regular" batteries (DEKA). Sitting in front of those are 2 AGM batteries. The manual shows the AC inverter layout tied to the AGM's.
 
You said AC, I thought Air Conditioning...not AC and a power inverter.
I don't have that and I don't have your manual but...

I assume you have shore power and AC panel? and an inverter to run (some) AC power from 2 AGM batteries when underway.
That is good that they are separate from DC side. You should not use an inverter on the "House" batteries when you have a shore power connection. You should have separate AC and Inverter AC circuits)(google that...)

You run what on the AC when not connected to shore power? Do you even need it?
 
SkunkBoat said:
You said AC, I thought Air Conditioning...not AC and a power inverter.
I don't have that and I don't have your manual but...

I assume you have shore power and AC panel? and an inverter to run (some) AC power from 2 AGM batteries when underway.
That is good that they are separate from DC side. You should not use an inverter on the "House" batteries when you have a shore power connection. You should have separate AC and Inverter AC circuits)(google that...)

You run what on the AC when not connected to shore power? Do you even need it?
Click to expand...
To be honest, I am not 100% sure of the setup. I assumed (possibly incorrectly) that "AC" referred to Air Conditioner because the pages are next to each other in the manual. And on the Air Conditioner page, it refers to many things as "AC".
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