PWM or MPPT.

[bazzaboy]

Depends how your controller is hooked up to your panels, but if space allows, IMO include a rated isolating switch between solar array and controller (single pole ok here). Handy for for safe PV isolation and testing panel out open circuit.

Thanks Bidja, that's exactly what I will do, permanently mount a rated water proof switch and the controller to the rear of a panel. Saves another removable connection, allows me to isolate the panels, and to connect the controller to the battery first via the Anderson connector.