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Post by Plamen on May 9, 2015 10:48:44 GMT -8
Hi, I would like to build a solar system in my Sprinter van and I prefer to use less panels possible. I am wondering which one is better for charging 12V power bank - 3 panels 100W/12V or one panel 300W/24V. Which one will give me more power or it will be equal? Thank you. |
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Post by Admin on May 9, 2015 11:37:39 GMT -8
Hello Plamen,
If you want to use the 300W (24V) panel to charge a 12V battery, you must use the MPPT charge controller.
Using one 300W panel or 3 100W panels on a MPPT charge controller will produce exactly the same amount of energy.
If you are set on using a PWM controller, then your only option is 3 100W panels wired in parallel to keep the voltage at 12V nominal.
Renogy Tech Support
SR
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Post by Plamen on May 9, 2015 14:45:40 GMT -8
Thank you for the fast response. I intend to use a MPPT controller and AGM deep charge batteries. The only thing I didn't decide yet, is mono or poly crystal panel to use. Due to the flat roof installation (not tilt) which type would you recommend?
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Post by Plamen on May 9, 2015 14:52:48 GMT -8
Probably I will use it often in shaded places during the summer hot days, but the rest of the year I will try get maximum sunlight.
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