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Old 24-02-2018, 21:21   #1
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Starting out with Solar

I just registered because while looking for information online I kept finding myself here. I'm hoping someone can help me or at least direct me where to find the info I need.
I have a Torqeedo Cruise 2.0 with the Torqeedo 24 v battery. My boat is a 16 ft pontoon. I love the motor and don't really care about speed, and I really can't with this boat and motor but just take it easy and relax. We mainly just fish and sightsee. What I want is to add solar to augment the battery and help with the range anxiety which I have but not too bad. Besides, having an electric motor I think screams solar. I'll say again that I'm not trying to fully charge the battery with solar, I just want to slow down the draw. Many times we just drift fish and I think we could be charging the battery while not running the motor and being stationary.
I was looking at panels and found some interesting ones on ebay, made in America and in my price range too. I see in other places that folks have said good things about the company. I'm not exactly sure what panels I need but these are two 12 v 200+ watt and not too big so I want to mount them on the bimini. I have basic electrical knowledge and can do basic wiring etc. Is this possible or is it something that is not even worth it? I just keep thinking electric motor needs some solar! Please let me know what you think and I would appreciate any info on solar resources that would help. Thanks so much Frank
Here is the link to the ebay site and the panels.
https://www.ebay.com/itm/273052967465
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Old 26-02-2018, 01:22   #2
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Re: Starting out with Solar

Those panels are expensive unless you need the “free” shipping. If you are located where you can pick them up you should be able to find panels <75 cents a watt.
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Old 26-02-2018, 08:59   #3
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Re: Starting out with Solar

Thanks, do think a solar company that does primarily home installations would sell me panels? We do not have a solar store that I know of where you can just go and pick up panels, just the ones who do home set ups. I don't know if I even could trust any of them around here to not fleece me or try to sell me something I do not need. I also think I would need the smaller panels rather than residential ones.
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Old 01-03-2018, 21:34   #4
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Re: Starting out with Solar

you'll also need a 24v solar controller.

you'll probably have the wire the panels in series to get the voltage high enough.
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Old 01-03-2018, 22:03   #5
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Re: Starting out with Solar

You might want to do some calculations to figure out exactly what you're going to get out of them with respect to power for the motor. I don't know how much it draws but it should be easy to figure out based on range/run time given your current amp hour capacity. You could then figure out how much average run time you'll add with your solar install.

If you plug your boat in at the dock and never go out overnight or on longer trips, the most economical and beneficial change might be to simply add another battery or two to your bank.
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Old 01-03-2018, 22:50   #6
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Re: Starting out with Solar

This is the Torqeedo 24 volt and it's pretty spendy so another is probably out. I do wish I knew how much it would add just to have additional charging while out. It just seems logical to have solar and not to worry so much about range. I know I can slow down just a bit and get far more distance but I still have range anxiety. I'm wondering if a MPTT charge controller would be worth it or just a PWM. It would need to handle a lithium battery too.
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