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Advice???
May 7, 2017 16:34:12 GMT
via mobile
Post by J on May 7, 2017 16:34:12 GMT
I ordered a Competition Solar 47701 Solar 20 Watt with Charge Controller to run a 6in 10 watt fan. Will a 12v 18ah deep cycle battery be sufficient? This is for camping!!!!
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Post by tytower on May 15, 2017 20:49:21 GMT
I'll see what others say but offhand a 20 watt panel when lit up will drive the fan flat out and charge the battery too. If the sun drops to half that then it should still run the fan but not charge the battery and if the sun goes out the battery should run the fan for (18 amps for an hour =say 1 amp for 18 hours ) 18 hours to dead flat.
So if run on the battery plan on probably 6 hours running while the battery is new and less as it dies .They all die in probably 3 years if regularly used and charged and a lot less if just spasmodic.
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