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Go Back   SailNet Community > On Board > Gear & Maintenance > 1989 Hunter 40 - A million questions.
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Thread: 1989 Hunter 40 - A million questions. Reply to Thread
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Topic Review (Newest First)
17 Hours Ago 12:55 PM
Jaramaz
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by smackdaddy View Post
Ah yes, sunny Sweden!

I'm going to try to go Full-Solar for a couple of months. I'll see what happens. We have a lot of sun here in Texas. If nothing else it will show me how the panels keep the bank up. I'll only have the fridge and bilge pump on full time.
Hmpf! Sunny Sweden - you are welcome to visit

But if this reasoning didn't work, letī's look on a budget:
Income: if you have 50 W solar panels (which is about a minimum for a 40 ft) then that would give .. mmm... 3 A during 12 hours - in average, if everything is good (I do not get this, but then I am living in chilly Sweden ), summing up to 36 Ah.

Consumption: OK, that is mainly the fridge, and that would be ? A good fridge would average on 1 A on a 24 h duty cycle. => 24 Ah

Then, the other consumeras are the radio, the bilge and some general current leaks. They sum up max 0.1 A on average. => 2-3 Ah.

Thus, you are good!
+36 Ah / 24 hour
-30 Ah / 24 hour

OK, I do not know fridge consumption in your area. It is a question of balance - but it should not consume more than indicated (we can have a separate discussion on that, you bring the beers, I'll have the arguments).


Did I say you need to have at least 300 Ah in total? 400 Ah is better. I known you have been whining about no space for batteries - but this is a question of a) having cold beer and b) being creative. I know you hjave considerable interests in both.

Do you want to hear all the arguments why you should not be connected to AC for a long periods, as in weeks? (Guess some here do not want to hear that, as they are charging 24/7). Separate thread, that too? OK, you start it if you want

Sunny Sweden ...

/J
23 Hours Ago 06:58 AM
chall03
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by Faster View Post
I know but I couldn't resist! It is a Hunter, after all...... (ducking)
Damn it you beat me too the Hunter reference....

Smack, I echo everyone else. In the slip,with the fridge off (and with us away from the boat) we leave solar on and shore power off. If the fridge is on then shore power goes on.

I do also have a simple switch in circuit to engage/disengage solar power.

I actually have a lot of switches on a a variety of stuff which I find is handy for diagnosing/fault finding at the least. (When freaky stuff is going on, it is handy to add and remove components one by one).

We have 200w of Solar with a 4 stage PWM charge controller.
1 Day Ago 01:56 AM
Faster
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by overbored View Post
I think he means turned on but not running unless it needs to on the float switch
I know but I couldn't resist! It is a Hunter, after all...... (ducking)
1 Day Ago 01:46 AM
overbored
Re: 1989 Hunter 40 - A million questions.

I think he means turned on but not running unless it needs to on the float switch
1 Day Ago 01:18 AM
Faster
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by smackdaddy View Post
......I'll only have the fridge and bilge pump on full time.
Your bilge pump is on full time?????
1 Day Ago 11:24 PM
smackdaddy
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by Jaramaz View Post
During sailing season, ie May -- Sept I leave the fridge on. Only power source is the solar panels, which are marked as total 50 W. ( note where I am sailing. ....)

Not good for a number of reasons to have the AC plugged in all the time. Would avoid this!

/J
Ah yes, sunny Sweden!

I'm going to try to go Full-Solar for a couple of months. I'll see what happens. We have a lot of sun here in Texas. If nothing else it will show me how the panels keep the bank up. I'll only have the fridge and bilge pump on full time.
1 Day Ago 10:13 PM
Jaramaz
Re: 1989 Hunter 40 - A million questions.

During sailing season, ie May -- Sept I leave the fridge on. Only power source is the solar panels, which are marked as total 50 W. ( note where I am sailing. ....)

Not good for a number of reasons to have the AC plugged in all the time. Would avoid this!

/J
1 Day Ago 07:44 PM
RTB
Re: 1989 Hunter 40 - A million questions.

For flooded lead acid, the Blue Sky bumps up to 15.2 V for equalizing. Don't try that with gels.

Ralph
1 Day Ago 07:41 PM
Faster
Re: 1989 Hunter 40 - A million questions.

Seems to me that if any solar controller 'sees' 14+ volts from whatever source (fully charged battery or other charger) it should cut itself back?
1 Day Ago 06:55 PM
smackdaddy
Re: 1989 Hunter 40 - A million questions.

Okay - cool. Thanks.
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