Forum Discussion

limbery's avatar
limbery
Explorer
May 01, 2013

New TT battery box full of water

Opened up my plastic battery box on my 2 month old TT, and found it was full of water...there are a couple of ventilation slots on the tp so I guess it got in there.... I was worried something could short out or something? I drilled a half doz. holes in the bottom of the box so water will drain out.... Is this unusual? Why wouldn't the box have some sort of drainage? It sits right behind my propane tanks.
  • At one time there were two kinds of battery boxes, one for marine use and one for all other. The RV dealers almost always chose the marine boxes instead of the correct one, so the correct one is no longer made. The closed bottom box kept bilge water away from the battery and vented thru the top, just the opposite of what we need.

    Just drill the box bottom at places away from the frame, and seal the vent holes with silicone.
  • Most vehicles do not have sealed battery boxes. I see them mostly for cosmetic reasons, as well as securing/covering cable connections. While acid dripping on steel is corrosive, any that contacts the earth is easily neutralized.
  • Well. It's apparant, that since it didn't burn your hands, It wasn't battery acid. I too driled holes in mine.
  • In an effort to reduce cost and save space, I'm thinking the trailer manufacturer used the battery box to store fresh water and the battery all in one neat little space savings package !!!!

    Not to worry, we all have drilled small holes in the box to drain water......
  • Most travel trailer come with a box that is vented on top. Yours is typical. Mine was the same way. I put one small hole in the bottom to let rain water drain out and have never had a problem after that. I agree with NanciL you did the right thing IMO
  • I drilled a couple of holes in mine a long time ago just for that very same reason.
    I disconnect mine between trips, and take the box and battery into my house between trips, so I am not concerned with a leaking battery.

    As far as I am concerned, you did the right thing

    JackL
  • The battery box is designed to keep any leaking acids within the battery box.

    You should have asked before drilling the holes. Now a acid leak can leak onto the trailer frame, ground, or anything around it.

    I was going to suggest that you check the battery box water by adding a tablespoon of baking soda to the battery box, and if it is acid that leaked from the battery, it would foam up, and help neturalize the water, so it will not eat the pavement, or disolve any paint the battery acid gets onto. If the water was only rain water, the baking soda will not damage anything, and can be drained onto the ground.

    My battery box bottom is water tight, and I like it that way! I don't know why you don't have a leak resistant cover, the tie down straps usually go below the top of the lid, and not have open sections to allow in water.

    Fred.