Just bought this device and was planning to use with 4 100w solar panels.
I wanted to know if I will be able to connect the panels series?
Depends on how cold it gets.
4 * 22V = 88V
(100-88V) / 88V = 13.6%
Your panel should have a Voc temp coefficient. Divide 13.6% by that value, e.g., -0.4%/°C
13.6% / -0.4%/°C = -34°C
Add -34°C to 25°C: 25 - 34 = -9°C
Your 4S array should remain under 100V until you reach -9°C.
If it's rarely/never that cold, or your panel temp coefficient is a smaller magnitude, 4S should be fine.
Thank you for the response, appreciated!
