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Battery charging by solar options?

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Battery charging by solar options?

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Old 06-06-2019, 06:26 AM
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Default Battery charging by solar options?

Hello, I plan on doing some camping trips and don't want to be packing a generator so I am wondering if there is a way I can use maybe a combination of a big 12V marine battery and a solar panel? We get a lot of sun so I would think it would work but I dont know how I shpuld approach this.
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Old 06-06-2019, 08:54 AM
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Yes, you can use the solar panel to charge the marine battery from a solar panel. Just also get a charge controller to keep the battery from over charging, then use the marine battery to power your charger..
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Old 06-06-2019, 09:52 AM
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Do not know how much current you want to charge bur a good 12v 5A panel is big.

If you want it portable there are nice suit cases:
https://bestportablesolargenerators....-for-caravans/
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Old 06-06-2019, 10:21 AM
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Thatnks guys, what if I just took a fully charged marine battery with me. How many 2S lipo charges could I get off of that? Maybe I dont need the solar because I could recharge the big battery after the weekend if it would do like 5 or 6 charges I would be happy.
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Old 06-06-2019, 10:38 AM
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I would expect you to easily get 5 or 6 charges from a full charged marine battery, but it depends on the capacity (in Amp hours) of the marine battery and the lipos that you will be charging. I'd suggest testing this before your trip, and recharging your marine battery before you go. Many RC chargers will have a default capacity or time limit that will stop charging before the marine battery is fully charged. You may need to carefully adjust these settings to ensure that you get good amounts of charge time, but keep a close eye on it and only charge it while you're close by.
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Old 06-06-2019, 10:46 AM
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You can calculate in watthour

the whathour of your marine battery is the capacity x voltage

The charging needs capacity LiPo battery x voltage lipo battery.

Devide the watthour numbers and you will have a theoretical number of charges. Probably you need to take 1 or 2 less.
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