As Westend said, it depends on the set-point for the alarm.
And different manufactures use different set-points.
If the wires to the inverter (input) are too small, there will be a voltage drop. Usually this is more of an issue with larger inverters that need hose size wires, but it still might be something worth looking at...especially if you are connected to the trailer wiring rather than using a dedicated wire to the battery.
When batteries get older (and colder), they have less capacity. Maybe it's time to replace your battery.
Winter camping takes lots of battery power. Any chance you can add a second battery?
I know we have discussed it before, but a heater that doesn't use a battery sucking fan makes a huge difference.
Are you still planning on going to the Canyons later on this month?
