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Old 05-21-2019, 11:04 PM   #5
Graphite Dave
Dave Orton
 
Join Date: Dec 2007
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Default Re: Solar panel choice, considering these

Quote:
Originally Posted by Napabavarian View Post
I may go that way, and a single panel.

I was looking at this charge controller

https://www.amazon.com/Victron-Smart...02194930&psc=1
10 amp controller is not enough for 300 watt panel if 10 amps is the output from the MPPT. You need minimum of 15 amps.
9.0 amps x 32.9 volts = 21 amps x 14 volts (approx. charging voltage). The MPPT takes low amperage/high voltage panel output and converts it to high amperage/low voltage. Actual panel max. output probably about 75% of panel rating due to heat and flat install.
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Last edited by Graphite Dave; 05-21-2019 at 11:18 PM.
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