Our 45, IMO, has an undersized house battery set up. We have 2 4d batteries- one seems to be for the engines and one for the house battery. We also have a group 24 that seems to be isolated from everything else. For that matter, both the generator and engine battery seem to be separated from the house battery. I have not chased down all the wiring to confirm it but based on voltage levels of everything that appears to be the case. After anchoring out for a few days, it seems our single 4d arrangement for the house battery is no where near adequate. All batteries are basically new- the two 4d's in February, the group 24 generator battery last week. While anchored out the 4d for the house does not seem to last long at all...a few hours at best with just normal usage of lights, head, water pump, etc.
I am curious how other 45 owners have modified their house battery arrangements and how said arrangements have worked out for you. Ideally, I want a battery bank that will allow me to anchor out for an entire day playing on the water, run the generator for 30 minutes or so while cooking dinner, use batteries all night for anchor light, fridge, etc. and run generator for 30 minutes while cooking breakfast and no more than that. I don't want to install a $2k inverter bank at this time as it is cheaper to run the generator for 30 minutes to an hour a day but want a battery set up that will let us anchor out for a few days at a time without constant power management.
In addition to being curious how others have their battery arrangement set up, I am also curious where you may physically be locating your battery bank(s) as there is not much real estate to be had in the engine room! Our 4d's are outboard of the starboard engine- a pain to get to them and all the weight can cause the boat to have a slight list since the 15hp outboard on the dinghy is on that side as well.
I am curious how other 45 owners have modified their house battery arrangements and how said arrangements have worked out for you. Ideally, I want a battery bank that will allow me to anchor out for an entire day playing on the water, run the generator for 30 minutes or so while cooking dinner, use batteries all night for anchor light, fridge, etc. and run generator for 30 minutes while cooking breakfast and no more than that. I don't want to install a $2k inverter bank at this time as it is cheaper to run the generator for 30 minutes to an hour a day but want a battery set up that will let us anchor out for a few days at a time without constant power management.
In addition to being curious how others have their battery arrangement set up, I am also curious where you may physically be locating your battery bank(s) as there is not much real estate to be had in the engine room! Our 4d's are outboard of the starboard engine- a pain to get to them and all the weight can cause the boat to have a slight list since the 15hp outboard on the dinghy is on that side as well.
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