You will find that the 12V 250A Winch Relay size keeps everything tidy around the battery.
HUAREW 80-AMP Battery Isolator and 12V Continuous Duty Solenoid Relay, High Curr
You will find that this power relay suits both small boxes and larger panels with ease.
The Songle brand gives me confidence, and the pins feel solid when you seat them in a breadboard.