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Subject Topic: Solar Panels Post Reply Post New Topic
21/5/2016 at 2:11pm
 Location: None Entered
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Hi

Not strictly for caravan use, but I was wondering if anyone here could help?

I was wondering which solar panel I would need to fully recharge a 60a/h leisure battery within 24 hours?

Thanks


21/5/2016 at 3:32pm
 Location: Derbyshire
 Outfit: Elddis accordo Motorhome
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You'd need 4 amps for 15hours if it's totally flat (hope it's not lead acid). 4 amps at 12v=48w

The panels are rated at 20v though so you actually get less current at 13v. Also the sun doesn't shine all the time, also the winter days are shorter.
I'd go for at least 80 to 100w panel.


21/5/2016 at 8:49pm
 Location: West country
 Outfit: Mondeo
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The panels may be rated at 100 watts but will give a lower output for most of the year. June/July being the best months. Cloudy days will also not be so good etc.

Ours has a 100 watt panel which I am hoping ill be sufficient.

Also consider you may be using power during the day.


22/5/2016 at 1:17am
 Location: Midlands
 Outfit: Mondeo Avondale Gram
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15 hours of full sun? which day of the year will that be on?

Will you be killing the battery daily so that it needs a full charge?

If its a good week then 8 hours of full sun would put my guess at double that of fleck2. Weather less than ideal then a larger panel(s).

But the battery wont like being run down and recharged fully every day.



22/5/2016 at 11:04am
 Location: Australia
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We keep a 100 amp hour battery charged for weeks on end,using 120 amp folding solar panels. Mainly used to power an 80 litre fridge freezer and led lighting.

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If there's no camping in heaven. I'm not going!



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