cancel
Showing results forย 
Search instead forย 
Did you mean:ย 

Battery & cut off switch

Whiskey_River
Explorer
Explorer
My battery goes dead after about 7-10 days being not plugged in.
Its a 5th wheel & I turn the cut off switch to off but it still goes dead.
What all is still active or still powered to the battery with the switch in the off position. Lights don't work, awning does not extend etc. But something is still being powered or there is a short in a line somewhere. For now I just disconnect the negative terminal of the battery..
18 REPLIES 18

mr_andyj
Explorer
Explorer
SO, disconnecting the neg cable does the trick?
If not then maybe the battery is so near the end of its life that a week is all it takes for its last remaining amount of power to naturally drain out.
Batts lose power always when sitting. A god battery will not matter if it loses a little, but a near-dead one will.

If it is still draining this fast and is not an old battery then there is more than a CO monitor pulling down power. A short might do it. It could be anything, even a solar panel that lacks a proper diode.

Is there a fantastic fan that comes on when it gets hot that you are not aware of, or something like this that might be off when you are in it closing up, but then comes on when you are away?

pianotuna
Nomad III
Nomad III
Ad a modest solar charging system.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

CA_Traveler
Explorer III
Explorer III
My switch.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob

BarneyS
Explorer III
Explorer III
Probably the propane/CO detector. Generally, they are wired in so the battery disconnect does not affect them. Also, the radio most likely always has a slight battery discharge going to it.

Most rigs will last a bit over a week without some type of battery charge. Best to do as you did - disconnect one of the wires from the battery or put a switch between the wire and the battery.
Barney
2004 Sunnybrook Titan 30FKS TT
Hensley "Arrow" 1400# hitch (Sold)
Not towing now.
Former tow vehicles were 2016 Ram 2500 CTD, 2002 Ford F250, 7.3 PSD, 1997 Ram 2500 5.9 gas engine