ill.behavior
New Member
*This may have been answered somewhere else, so feel free to link another applicable thread*
My 2009 fifth wheel came wired as such:
PD 9180ALV 80A lead acid converter/charger with dual positive and negative terminals on the bottom. Positive #1 goes to fused DC load center, positive #2 goes to battery box. Negative #1 routes to battery, negative #2 is unused. It has three 30A fuses next to the terminals. Chassis ground wire connects to GND terminal at top of unit. AC power plugs into outlet to the right of the unit.
In the battery box, there is a two-terminal positive bus bar. This connects to converter/charger, battery, and a couple of other unidentified wires. One of these wires had an inline 30A fuse, which was blown when I inspected it upon losing power to my landing gear so I assume that it goes to the jacks. No other negative connection in battery box besides battery<->converter.
The battery is about shot, and the converter/charger died the other day. I was fine with that, because I’m switching ti lithium, anyway. I have a 100Ah LiFePO4 battery on the way, and my plan was to buy an inexpensive 20-40A LiFePO4 AC/DC charger to replace the the converter/charger. My thought was to plug the charger into the AC outlet, run the positive and negative leads to the battery terminals, connect the positive terminal of the battery to the positive bud bar in the battery box, and crimp together the ends of the positive cables that currently attach to the converter/charger. That way charging power gets to the battery, and and the battery will directly power the DC load center.
The math works out, but I realize I have not factored in the now unused GND connection that went to the top of the converter/charger. Do I need to route that to the battery? Or is the grounded AC connection on the new charger sufficient? And do I need to worry about additional fusing?
I hope that made sense!
My 2009 fifth wheel came wired as such:
PD 9180ALV 80A lead acid converter/charger with dual positive and negative terminals on the bottom. Positive #1 goes to fused DC load center, positive #2 goes to battery box. Negative #1 routes to battery, negative #2 is unused. It has three 30A fuses next to the terminals. Chassis ground wire connects to GND terminal at top of unit. AC power plugs into outlet to the right of the unit.
In the battery box, there is a two-terminal positive bus bar. This connects to converter/charger, battery, and a couple of other unidentified wires. One of these wires had an inline 30A fuse, which was blown when I inspected it upon losing power to my landing gear so I assume that it goes to the jacks. No other negative connection in battery box besides battery<->converter.
The battery is about shot, and the converter/charger died the other day. I was fine with that, because I’m switching ti lithium, anyway. I have a 100Ah LiFePO4 battery on the way, and my plan was to buy an inexpensive 20-40A LiFePO4 AC/DC charger to replace the the converter/charger. My thought was to plug the charger into the AC outlet, run the positive and negative leads to the battery terminals, connect the positive terminal of the battery to the positive bud bar in the battery box, and crimp together the ends of the positive cables that currently attach to the converter/charger. That way charging power gets to the battery, and and the battery will directly power the DC load center.
The math works out, but I realize I have not factored in the now unused GND connection that went to the top of the converter/charger. Do I need to route that to the battery? Or is the grounded AC connection on the new charger sufficient? And do I need to worry about additional fusing?
I hope that made sense!
