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Old 02-15-2018, 02:07 PM   #1
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Join Date: Mar 2012
Posts: 132
Solar panel Amp rating vs Charge Controller Amp rating

Hi All,
I'm in the process of swapping out an old single solar panel on my roof with two bigger panels: 140W rated at 8amps.

The van currently has an older SCI PWM Charge Controller rated at 15Amps.

Will I need to get a new charge controller to? or is this close enough that I can get by without having to replace the controller?

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Old 03-09-2018, 09:45 PM   #2
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Join Date: Jan 2012
Location: Western North Carolina
Posts: 1,258
I'd switch just to get the extra power from a mppt. I actually did that two years ago. But I'd up the unit to safely handle the power difference.
2001 E350 PSD w/ a bunch of stuff.
And had three other E350s...
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