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Cadillac_Jack's avatar
Cadillac_Jack
Explorer
Oct 16, 2014

Proper Wiring for two controllers to one battery bank

Ok guys here is what I have, and what I want to do. I have two 120 watt panels running through a 10 year old PWM charge controller to a set of two group 27 deep cycle 12 volt Trojans. I also h...
MEXICOWANDERER's avatar
MEXICOWANDERER
Explorer
Oct 18, 2014
I like the idea of placing fuses not breakers between the controller and the battery bank. A controller that somehow finds itself in Armageddon Mode will source battery potential and that can pose a genuine fire hazard.

The controller with the best range of tweaking should play the part of the Alpha of the pair. I would imagine that to be the MPPT controller. The PWM can be the Beta, and be set .2 volt lower for absorbsion limit.

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