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I have bought a BlueSolar PWM Duo-LCD-USB charge controller to charge my 220ah leisure battery bank and also the vehicle battery on my motorhome. Could anyone tell me if these solar panels are suitable for my system please? I would be looking at buying 2 of them. The manual for the charge controller says to use 36 cell panels but these are 54 cell.
No. The maximum solar voltage for this charger is 28V (12V) or 55V (24V).
The panel you linked to has a Voc (voltage open circuit) of 33.5V. Twice that is 67V which would exceed the 55V from the BlueSolar specifications.
A PWM solar charger is cheap, but not ideal. An MPPT charger is always the better solution, but is more expensive. A MPPT charger will allow a broader choice of panels.
