Forum Discussion
CA_Traveler
Mar 31, 2014Explorer III
The MS MPPT60 will handle 3 of the 270W panels. MS has a calculator and you can check the 290W panels. You'll rarely get over 800W and the controller will derate to 60A if needed, but look at the watts. If you're charging 14.4*60=864W and once past bulk the battery voltage and amps will drop. Something to consider
The biggest concern would be the 44.5 VOC on Big Bertha. You want to make sure you don't exceed 150V with any temperature and the specs are for 44C. The calculator will help.
The biggest concern would be the 44.5 VOC on Big Bertha. You want to make sure you don't exceed 150V with any temperature and the specs are for 44C. The calculator will help.
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