just a quick question if anyone knows how to solve. Have 22' camper trailer when not connected to truck without using any power battey dies within 48hrs. How do i test for a draw or what could be draining battery

 

take the negative battery cable off and put a test light in between the neg battery cable and the neg battery lug...if the test light lights up you have a draw......to find the draw start pulling fuses till the test light goes out...when it does, that is the part that is causing the draw


clear as mud???

 

I use a battery shut off quick-disconnect on all my vehilces/RV's that I don't operate on a daily basis.

 

Good advice on the previous posts. However, all RV's will give a slow drain. Gas detectors, tv's, monitors all pull a small amount of power. I would be interested to see how long a charge lasts in your battery when it is disconnected. You may be looking for a drain when the battery is really shot.

Absolutely get a battery disconnect.

Bob

 

Did you open the battery caps and see if it was full of water. If the lead plates are exposed your battery will not hold a charge. Fill battery with distilled water if needed and see how long you can hold charge.

 

One of two things: Either something is drawing from the trailer, or an internal fault in the battery is causing it to self-discharge.

You could pull the fuses for the LP detector and carbon monoxide detector, and take an ohm meter reading from the trailer's battery cables (with the battery unhooked). You could also jump in an amp meter when everything is shut off. If it's something in the trailer killing fully charged batteries that quickly, the draw would be pretty significant.

Alternately, you could remove the battery and bring it up to full charge with a stand alone charger, unhook it and see where it's at in a few days.

 

thanks, will test for draw with the test light between neg and battery post will pull co2 detecor out as not to give false reading. Battery is new and holds up fine for over 2 weeks when not connected at least thats the longest i had left it and it still had a full charge

 

Blue top Optima's are sweet for trailers..they are made to sit in storage for 6 months at a time

 

One of the most overlooked draws on trailer batterys is the heat strip built into the door seals on a dometic fridge. There is a switch some where near the freezer door to turn it off. It is used to remove the moisture build up during humid weather. They will take out a weak battery in no time at all. On my rv there is a 1/2 amp load with everything turned off. It is all the monitoring systems that is on all the appliances. Only way to stop it is a Battery Disconnect switch.

Bob H

 

i had problems with dead battery after a weekend trip. first trip out with the new trailer. i found out it only had a group24 automotive battery. went to the local battery shop and the guy rec. 2 6v golf cart batteries wired to make 12v. installed batteries.....no problem even after 1 week of dry camping...

 

thanks used test light on battery then pulled fuses one by one seems the furnace/fridge light fuse once taken out turned off light now just have to trace back the wires from there and hopefully find something obvious have heard that 2 6v batteries works great but just bought new battery

 

trx: What kind of a trailer and what year do you have?