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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)
2 Hours 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
2 Hours 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?
2 Hours Ago 06:55 PM
smackdaddy
Re: 1989 Hunter 40 - A million questions.

Okay - cool. Thanks.
3 Hours Ago 06:51 PM
RTB
Re: 1989 Hunter 40 - A million questions.

We have the same panels, but I have the Blue Sky controller. I don't have a way to turn off the controller, but plays fine even if the AC charger is running. The Blue Sky jumps to Acceptance charge (14.4 volts) for two hours after Bulk charge, then goes to float automatically (13.2 v).

Once you get the Link up and running, you can monitor how things work. When I started posting this, I was down .3 Amps, and the solar was putting in 1.1 Amps. I turned on the AC charger, and it jumped up to around 4 Amps coming in for a moment, then started dropping. Right now, I'm sitting at 14.2 V, charged 100%, and putting in 1.1 amps, with solar and the AC charger running. You'll just need to play with that charge controller, and see what it does with the charger running. I don't know.

Ralph
3 Hours Ago 06:26 PM
smackdaddy
Re: 1989 Hunter 40 - A million questions.

Cool. Thanks guys.

Ralph, since we both have the same system - do you just turn off the solar power at the controller when not in use - and/or when using shorepower? I'm just a little nervous about having solar and AC-charge running at the same time - because I don't know how all these work together.
3 Hours Ago 06:20 PM
Faster
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by smackdaddy View Post
For those of you who have solar...when you are at the slip do you just leave your AC battery charger (ours is a Xantrex) off and rely only on the solar to keep the bank topped off? Or vice versa?

I've never used solar on a boat before so I'm just trying to get some tips.

Thanks!
We have no DC loads when in our slip (we don't leave the fridge running, for example, so the only load is the occasional bilge pump run when raining (mast water)

Under those conditions we do not leave any charger in play.

If we leave the fridge on for any reason and we're 'plugged in' I'd likely leave the shore charger on, as our solar is limited and can't keep up 24/7.

btw - watch these new stereos with 'memory power'.. they can chew up close to an amp/hr on their own - and that is 24/7.
3 Hours Ago 06:20 PM
RTB
Re: 1989 Hunter 40 - A million questions.

It depends....

If you are on the boat running the fridge and lights, and other electronics, let the solar do it's work during daytime. Maybe top off with the AC charger before you sack out. Next day, see how much you are down and how much you are putting in. Is it sunny, or cloudy and raining? Bump up the batts if you can't catch up with solar.

If I'm away, and the fridge isn't on, forget the AC. The solar will keep you topped off, since there isn't any draw anyway. We do occasionally leave for a week, and need to leave the fridge running (because my wife didn't plan ahead). I leave the AC charger on in that case, not knowing if there will be enough sun to keep up.

I hope this helps.

Ralph
5 Hours Ago 04:48 PM
smackdaddy
Re: 1989 Hunter 40 - A million questions.

Okay - we've been doing TONS of work on Dawn Treader. A lot of it has been electrical...adding solar, a Xantrex LinkPro battery monitor, additional batteries to the house bank, fixing the radar, cleaning up wiring, etc. I'll do a full write up on all that soon.



But here is a question...

For those of you who have solar...when you are at the slip do you just leave your AC battery charger (ours is a Xantrex) off and rely only on the solar to keep the bank topped off? Or vice versa?

I've never used solar on a boat before so I'm just trying to get some tips.

Thanks!
10-27-2014 11:41 AM
smackdaddy
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by MedSailor View Post
Why would you need to ADD stiffness to the Bimini after adding tge solar panels? Seems like their inbuilt box frames would add lateral and longitudinal strength to your Bimini.
They add a lot of torsional stiffness, but lateral and longitudinal needs some further support. In other words, it moves side to side too much. And, though the bimini fabric might fix it, I think I might run a diagonal down from the existing diagonal to that horizontal tube.
10-27-2014 12:44 AM
MedSailor
Re: 1989 Hunter 40 - A million questions.

Why would you need to ADD stiffness to the Bimini after adding tge solar panels? Seems like their inbuilt box frames would add lateral and longitudinal strength to your Bimini.
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