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gutowscr471's avatar
gutowscr471
Explorer
Jul 08, 2017

Power Draw on Salem Hemisphere

Doing some searching on here for power draw and looking for some validation. When all shore power is disconnected with inverter turned OFF, still pulling just over .8-1.1A from battery (single). Everything is turned off. Power seems to still go to CO2, TV and built in radio system even with inverter off. Could these devices draw that much power or do I have another issue i need to look at?

6 Replies

  • When my TT is disconnected from shore power, my current draw is .4 to .6 amps.

    The culprits in my TT are the LP detector, the antenna pre amp, the radio/DVD player. Also the frig when it is set to gas, the furnace when it is on and waiting for the thermostat signal.

    Phantom loads are the price you pay for instant-on and safety features. When I want to stop battery drain, I disconnect the negative lead to the battery.
  • That's way too much for a radio memory and/or a detector.
    The fridge condensation heater is a good bet. They draw about 1A continuously.
  • Your refrigerator also draws power. The control board draws a small amount. There's nothing you can do about that if you want to use the refrigerator. A bigger problem with the refrigerator is a heater in the door that is supposed to prevent condensation in humid weather. This heater in some refrigerator model cannot be turned off, and it draws a lot of power.if you can turn it off do so. If not you can modify your refrigerator so that you can turn it off. Several posts on this forum can tell you how to do it.
  • Yes, those items can draw that amount. You could double check by pulling associated fuses to them. Also, that could show if there are other culprits!

    On my trailer, I have installed switches to kill them when not being used. Also if you have a battery isolator switch that would kill all draws. If you don't, that could be a quick and easier method than chasing circuits and adding cut-off switches.
  • gutowscr471 wrote:
    Power seems to still go to CO2, TV and built in radio system even with inverter off. Could these devices draw that much power or do I have another issue i need to look at?


    Smoke detector, propane leak detector, gas solenoid on refrig...and anything else that runs on 12 V or propane....including those things that you listed if they are 12 V models.