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The hydraulic pump is in very close proximity to the battery. Open air chassis wiring. I realize power transmission and bundled wire changes the current capacity. Ambient temperature also affects current capacity. I have never checked, but I would suspect the pump actually draws more current in the winter months, due to fluid viscosity in cooler weather.
Flow from the converter on my unit as I understand it is maximum 45 amps. Lippert says they will void the warranty on units damaged by operating strictly on the converter. There are a lot of other things on my unit that concern me more than the hydraulic system. As I stated earlier, I have 80 amps protection on the system, and have had no breaker trips since installing it. I would agree though, overall engineering on these fifth wheels leaves something to be desired.
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