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Old 10-10-2017, 05:18 AM   #5
JRTJH
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Join Date: Mar 2011
Location: Gaylord
Posts: 26,846
Don't forget the amplifier/booster in the TV antenna. That little device uses as much as the CO detector and the LPG detector. Fortunately, the smoke detector is most likely not connected to the trailer battery (most CO detectors are) and it's a "stand alone" device.

Even if you drop Javi's 3 amp draw to 2 amps by turning off the antenna, with your battery bank, if it's fully charged when you park, they will only last 4.3 days. 210/2=105 105/24=4.3.

Now, something to think about: If your battery bank is being "completely discharged" to a charge level below what the refrigerator won't turn on, they are being discharged well below the 40% state. That will shorten their life expectancy by a significant amount. Most battery manufacturers recommend never discharging deep cycle batteries below about 60% before recharging (for maximum life). You might want to "solve your problem" by installing a battery cutoff switch that completely isolates the batteries from the trailer. The one that is OEM will not turn everything off, so it's essentially "of no use" when your trailer is in storage.
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