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Rob, Home Appliance Technician
Category: Appliance
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Experience:  20 yrs. experience with a major worldwide manufacturer.
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This question is about a Lunar Quasar 462 2010. When all the

Customer Question

This question is about a Lunar Quasar(###) ###-#### When all the electrics are switched off and no mains hookup on, the battery is dicharging a small current (120mA approx.)when the master electrics switch is on. When it is off, there is no current passing. What is using this power ? There is not an alarm fitted.
Mike A Chester
Submitted: 1 year ago.
Category: Appliance
Expert:  JamesI replied 1 year ago.

This is a rather small current, but clearly not good when leaving the van in storage for months on end.

As this is low current, its not the fridge, however there will be current powering the on board PCB which checks for inputs from sensors eg taps, toilet (if fitted with electronic flush), monitors the battery performance and charging circuit which will cycle the battery and decide when to charge it when towing and when to charge it from mains power (if hooked up). When the battery reaches around 25% the PCB should power off so not to fully deplete the battery.

In addition depending on what accessories are fitted it could also be powering the radio\clock as they are often wired on permanent live so not to lose memory \ time.