Rv Refrigerator Draining Battery

It s common for an rv to be draining anywhere from 0 25 1 0 amps hr when things are off. And remember as soon as the battery state of charge drops below 12 5 volts sulfation starts and if the battery stays in that condition for an extended period of time the battery will die. Your rv has two separate electrical systems.

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All the lamps fans water pump etc still operate on 12 volts dc just that the dc electricity is provided by the converter instead of the batteries while plugged in.

Rv refrigerator draining battery. Your fridge for example has the circuit board powered just waiting for you to press the on button. If the drain disappears when a particular fuse is removed the meter will indicate zero. A rv refrigerator or a residential refrigerator for rv consuming around 150 watts while it is running would be drawing around 12 amps hour from a single 12 v battery. Refrigerator circuit board may use power even if fridge is off automatic gas valves.

Over the past few years i ve come across dozens of rv s that have minor to extensive water damage under and around the refrigerator. When plugged into shore power at the campground presumably the ac to dc converter will charge the auxiliary battery bank. In your rv it s possible for these parasitic loads to drain the battery when you don t use or charge the battery for long periods of time. A residential style fridge works best with an upgraded battery bank and an ac dc compressor fridge can drain your stock battery bank when boondocking.

When that happens you ll know that fuse is protecting the circuit which contains the component draining the battery. A 12 volt dc electrical system and a 120 volt ac system. And under these conditions a rv refrigerator alone can run for around 4 5 hours using the 12 v battery supplying around 100 amp hours. If the rv you re considering an rv that doesn t have an easily accessible battery bank you might want to consider an absorption fridge.

And in this digital electronic age things that are off are often still drawing a small amount of power. The 12 volt system is powered by a battery or in some cases multiple batteries and it powers things such as the start up on your water heater furnace and refrigerator plus most of the lights in your rv s living space your water pump your carbon. One rv two electrical systems. Electric steps some have lights or are always monitoring the door to see if they need to be in or out also always double check any cabinets or closets where lights turn on automatically when you open them.

Most of what i see look. If the drain persists go to the dc fuse panel and remove each fuse one fuse at a time.