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Oops, yes you are quite correct. My typing fingers are working faster than brain today
80W divide by 17.5V = max current of 4.57 amps each panel.
So for 2X 80W a 10A controller will still be just OK. Remember max or 4.57 Amps is only achieved under full sun at midday in the tropics so usually less in the UK.
Trevor
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Oops, yes you are quite correct. My typing fingers are working faster than brain today
80W divide by 17.5V = max current of 4.57 amps each panel.
So for 2X 80W a 10A controller will still be just OK. Remember max or 4.57 Amps is only achieved under full sun at midday in the tropics so usually less in the UK.
Trevor
Seems in the right ball park Trevor,the highest output I have seen on the Steca regulator(2 x 80watt solar panels) has been 9.2 A on a sunny day in July.
______________________________________________________________ cheers Steve
Oops, yes you are quite correct. My typing fingers are working faster than brain today
80W divide by 17.5V = max current of 4.57 amps each panel.
So for 2X 80W a 10A controller will still be just OK. Remember max or 4.57 Amps is only achieved under full sun at midday in the tropics so usually less in the UK.
Trevor
My 7.5 amp controller is rated suitable for 180 watts, according to its literature.
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Norway
