Ben Posted February 23, 2021 Share Posted February 23, 2021 I recently found out could end up with a over voltage situation with my make Sky Blue charge controllers (ty sid) Even though 3 series connected panels don't go over the maximum 150 volts Solar panels and sometimes do over the maximum voltage It would be nice to have Sean Buckner to put a list of his recommendations on here input volts amps output volts amps It would also be nice to know if there was any hacks i could do to raise the input voltage If the caps was the only problem those are easy enough to up grade Even the mosfet wouldn't be to hard Has anyone tinkered with these charge controllers?? Quote Link to comment Share on other sites More sharing options...
Waterman Posted February 27, 2021 Share Posted February 27, 2021 Rated Output The maximum PV input power. The total power rating of PVs can’t be over this Wattage. Voc from PV Voc is 1.5 or 2 times the battery Voltage for it’s best efficiency. ) 30A 12V system (400W) 24V system (720W) 36V system (1000W) 48V system (1200W) 12V system (DC20V~DC80V) 40A 12V system (480W) 24V system (960W) 36V system (1400W) 48V system (1700W) 24V system (DC37V~DC105V) 50A 12V system (600W) 24V system (1200W) 36V system (1800W) 48V system (2200W) 36V system (DC50V~DC160V) 60A 12V system (720W) 24V system (1440W) 36V system (2100W) 48V system (2800W) 48V system (DC72V~DC160V) Quote Link to comment Share on other sites More sharing options...
Ben Posted March 3, 2021 Author Share Posted March 3, 2021 On 2/26/2021 at 10:04 PM, Waterman said: Rated Output The maximum PV input power. The total power rating of PVs can’t be over this Wattage. Voc from PV Voc is 1.5 or 2 times the battery Voltage for it’s best efficiency. ) 30A 12V system (400W) 24V system (720W) 36V system (1000W) 48V system (1200W) 12V system (DC20V~DC80V) 40A 12V system (480W) 24V system (960W) 36V system (1400W) 48V system (1700W) 24V system (DC37V~DC105V) 50A 12V system (600W) 24V system (1200W) 36V system (1800W) 48V system (2200W) 36V system (DC50V~DC160V) 60A 12V system (720W) 24V system (1440W) 36V system (2100W) 48V system (2800W) 48V system (DC72V~DC160V) Thanks water man I was thinking the caps inside and top voltage of msb is 150 volts I will have to open one up and check components again Quote Link to comment Share on other sites More sharing options...
Waterman Posted March 4, 2021 Share Posted March 4, 2021 4 hours ago, Ben said: Thanks water man I was thinking the caps inside and top voltage of msb is 150 volts I will have to open one up and check components again The two at the output on mine are 100V. The rest are rated 160V. So when they say 150 Volts, better stay at that or lower. Quote Link to comment Share on other sites More sharing options...
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