How many Amps Hours do you use a day?

[Stu Jackson]

Originally Posted by Mr B

I can sail now, 3000 Nmiles sort of helps, 50 years of previous motor boats also helps,
Like I said, Try and be helpfull, I only want to know about the electrics,

We ALL hear you.

How do I know this?

NONE OF US was born an electrician.

We all learned by reading, watching and doing.

Since you're on this forum, you will be exposed to some very helpful folks. You should also learn about useful electrical websites, like these:

Electrical Systems 101

and

Support MAINE SAIL

[briblack]

at anchor 160 to 250 AH per day, at 12 volts. we're a 46' sailboat, fridge and freezer, 12 volt watermaker, no AC. we're in Panama

[contrail]

Originally Posted by Mr B

I was on a swing mooring in a bay surrounded by other yachts on swing moorings and motor boats scorching past at all hours,
I kept my lights on, I want to be seen,

Just leave on a salon light and a cockpit light, along with your anchor light. Legal, not confusing and effective.

[LooseGoose]

get yourself one of these:

https://www.amazon.com/MICTUNING-6-5...70_&dpSrc=srch

we go trough 250 a day, fridge, bar fridge and 80L freezer.

[TrentePieds]

Quote:"Anyone gets into a mess because they thought you were underway, you might have liabilities. "

Exactly! ALWAYS be in compliance - THEN do whatever the given situation requires for you to stay safe.

TP

[john61ct]

Originally Posted by LooseGoose

get yourself one of these:

https://www.amazon.com/MICTUNING-6-5.../dp/B01JOUZELG

Why do you think that would be better than the 180A one in my post #4?

[sailorboy1]

Originally Posted by Ip485

So what do you reckon your daily use is;

1. At anchor
2. On a day night passage

In respect of 1, what equipment are you using and for what periods of time.

The same question for 2, and does this include use of an autohelm the whole time?

What part of the world are you basing your answer on?

.. .. and Amps used being total Amps used, excluding any replaced by any means.

1 - 150-175/ radio, frig, tv and computers for a few hours
2 - 180-200/24 hours and yes that includes the autopilot

[LoudMusic]

Originally Posted by john61ct

Why do you think that would be better than the 180A one in my post #4?

Where did he say he thought it was better than the one in your post? I doubt he even saw your post, nor will he return to see this one. Cruisers Forum, yay!

[SV Bacchus]

Family of 3 on a 42 foot cat, mostly LED lights including anchor light, fridge/freezer, 3 12V fans at night, usual assortment of laptops and phones PLUS an Xbox and TV for the 13 year old. Been on a mooring ball for a bit in sunny Marathon, FL. Upon waking the Blue Sky IPN Remote shows, on average, 83% & -160Amp Hrs from full and volts around 12.2V. I have minimal solar, which I need to address ($$$$), so I run the genset, NL 6kW, for an hour to 2 hours to get between 93% to 95% from full and I let the solar take over. It usually hits 100% and stays there for an hour or two, which I'm thinking and hoping is good. Then the whole process starts over.

I am shooting from the hip tho as this is a new to us boat and I've not the knowledge or ability at this point to determine true battery capacity of 4, two-year old 210 AGMs. I also don't know how accurate the Blue Sky is at this point.

I'm not kidding myself about battery capacity, I'm sure it is down some but not sure how much. I'm hoping everything is close and I am at least trying to treat the batteries good.

[KRMS]

Originally Posted by john61ct

That would have to be AH (amp hours) for a quantity of power used over time, or stored.

Amps are an instantaneous measure of flow rate.

Whoops you don’t mean Power you mean Energy! When ‘correcting’ another forum member, particularly when we all knew what he meant, it pays to be ‘correct’.

[waterman46]

Originally Posted by RobTryon

We use 125-150 ah per , we have a systems heavy boat that runs everything from fridge and freezer to auto and nav. We anchor several hundred days a year so very aware of what we are using.

Finally, an honest answer and I'm sure this is typical for being at anchor, using the equipment usually found on a 45ft cruising boat when you have a decent freezer and the weather and sea is moderately warm.

Over the last 20 years I've had the same setup in the boat, I guess countless days anchoring months at a time. We have A/H meter and I'm constantly monitoring it, and some days we can go without sun or gen/motor charging but if we do then we are down about 75A on each of two house batteries. Our water cooled freezer and reefer require 28A for about 4 hours per day, in coastal Mexico where the water is fairly cool. I keep the freezer cold plate between -15 and 0 deg F. Need to make ice cubes for my wife, who is a bit picky about her margaritas.

When we didn't run the freezer, we only used about 80AH per day.

At sea we are on autopilot full time, it draws 2A average. So that's another 24AH to add to the usage. But we would usually run the engine when the wind is light or on the nose, so not much problem there.

[Debgen]

We have a 600ah battery bank with 640 watts solar panel. At anchor we use avg of 90 ah per day with 5 cu ft. Refer and 45 Liter Engels used as freezer with hard ice cream as well as computers and general lighting. under sail we use avg of 130 ah a day only vhf auto pilot nav lights and instruments.

[john61ct]

Originally Posted by LoudMusic

Where did he say he thought it was better than the one in your post? I doubt he even saw your post, nor will he return to see this one. Cruisers Forum, yay!

I'm hoping he'd actually have had personal experience with either.

[john61ct]

Second thoughts about snark, all corrections are welcome!

Good explanation of power vs energy https://cleantechnica.com/2015/02/02...y-explanation/

[Typhoon]

45 foot Bristol.

We use around 50 to 60 amp hr a day on the hook with fridge and a separate deep freeze running, lights. electric heads , tv radio... ect.

During passages with the auto pilot on and full navigation systems ( AIS 4G radar 3 chart plotters) running we can get up to 180ah.

Regards John.