Quote:
Originally Posted by Aheusel
I plan to get a 2000 watt Renogy that has the pass through and auto transfer. Just thought it would be cleaner to go to the box.
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Be aware that although Renogy does have an inverter with auto-transfer and passthrough, the design is such that the inverter must be on all the time in order for the passthrough function to work. In other words, if the inverter is off, the outlets fed from that inverter will be dead, even if you are on shore power. The primary design was engineered to act as a UPS (uninterruptable Power Supply), not as an occasional-use off-grid RV power inverter. Additionally, the Renogy has a very specific mounting orientation and limitations (for one, it cannot be mounted upside down on the ceiling of my compartment where the factory mounting plate is located). These things may or may not be an issue for you, but it was enough of one for me that I did not buy the Renogy 2,000w inverter.
As for cable size, you need to consider the total length of each of the positive and negative cables from the battery posts, to the battery box lid, from the battery box lid to the Giggy box, and from the Giggy box to the ground for negative and through the inverter disconnect and fuse/breaker, for the positive and then both positive and negative to the inverter. If the run of each leg is less than 3 feet in total wire length from the battery to the inverter, you can do it with 1/0 cable, but anything longer will require 2/0 cable. I think that if you look at the size of the wires and ring terminals you will be using, and compare them to the miniscule size of the mounting posts in the Giggy box, you will want to bypass the Giggy box altogether.
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