Solar Panels to charge trolling batteries - Manitoba Fishing Forum - The Premier Fishing Forum Of Manitoba
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Old 04-13-2016, 09:50 PM   #1 (permalink)
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Default Solar Panels to charge trolling batteries

Looking for opinions and experiences on using solar panels to charge trolling motor batteries. I have a 24 volt setup with two batteries in series. What do I need to make this work?


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Old 04-14-2016, 06:01 PM   #2 (permalink)
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Check the link below, it's a good start to see what is needed for 12 volt charging. I own three of these kits and got them on sale just to play with them. The inverter is not needed for battery charging, but you may wish to add a battery monitor as well since the solar would continuously charge the batteries without caring if they are being overcharged.

http://www.princessauto.com/en/detai...er/A-p8512451e

Contents Solar panel, 7 amp charge controller, 200 watt modified sine wave inverter, wiring accessories, green LED test light

Moving up to 24 volt though, this kit seems appropriate for your use.

https://www.solarwholesaler.ca/produ...ppt-solar-kit/

This kit is $1300, and has everything you need except for the monitor.

Check out Youtube to learn about solar and see if it's for you. Then shop around for prices as they can range from reasonable to ridiculous.
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Old 04-26-2017, 11:34 PM   #3 (permalink)
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Bumping this up as the Princess Auto link is dead and the other kit is crazy priced.

Is anyone doing this with panels on their boat? My Merc 25 doesn't have an alternator and thought I could do this with solar panels on boat. Amazon has 40 watt panels for $70 and a controller for $25. Anyone know if this will work?

Trolling motor and stereo will do in my 12 volt deep cycle in a full day on water. Was hoping a panel could keep it going and get it ready for next day or while sitting in the driveway.
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Old 04-27-2017, 12:09 AM   #4 (permalink)
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I personally question the feasibility of doing this for most boaters. Depending on your needs, you may want to switch to bluetooth speakers as they usually last pretty long and will save you having to drain your batter. Second option would be to upgrade to a bigger size battery. If space is a problem then you may want to consider AGM batteries, but they're a little expensive.

If you do go down the solar panel route, I like the idea of the flexible ones as the can mold to the surface they're being attached to. Not sure how feasible that is, but if you have a hard top cabin then maybe there.

http://www.canadiantire.ca/en/pdp/no...2032p.html#srp

Good luck in your search.

Last edited by abousetta; 04-27-2017 at 12:19 AM.
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Old 04-27-2017, 01:02 AM   #5 (permalink)
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I don't think solar charging trolling batteries is very feasible. A 50 W panel is going to put out around 2.5 Amps max with the solar panel angled perfectly. Realistically, you might get 12 Amp Hours a day so if you run down your battery 48 Amp Hours, it will take you 4 days to recover. You can put several 100 W panels together but the total cost will likely be over $1000. Even then, if it is cloudy out, it will be almost useless.
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Old 04-27-2017, 04:35 PM   #6 (permalink)
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Quote:
Originally Posted by lirwin4 View Post
I don't think solar charging trolling batteries is very feasible. A 50 W panel is going to put out around 2.5 Amps max with the solar panel angled perfectly. Realistically, you might get 12 Amp Hours a day so if you run down your battery 48 Amp Hours, it will take you 4 days to recover. You can put several 100 W panels together but the total cost will likely be over $1000. Even then, if it is cloudy out, it will be almost useless.
That was the simplest explanation "in all of the internet". Thank you

After lots of reading, that sums it up and aligns with what I read.

I'm not pursuing this any farther.
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Old 07-25-2017, 12:47 AM   #7 (permalink)
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excellent Inforamtion Thanks a lot for sharing information on Solar Panels to charge trolling batteries
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