Corroding battery cables

Discussion in 'Mechanic and Repair' started by General Grounds, Nov 13, 2001.

  1. General Grounds

    General Grounds LawnSite Senior Member
    Posts: 902

    :confused: no matter what i do on 2 of my machines the cables keep corroding at the terminal. I tried white grease, that did'nt work, also tried that terminal protector from the can, that did'nt work. Am i missing something?????Tony
     
  2. Richard Martin

    Richard Martin LawnSite Fanatic
    Posts: 14,700

    Tony wrote:
    .......................
    Am i missing something?????
    .......................

    Perhaps!

    You didn't say how often you are doing the cleaning. Even a supposedly "maintenance-free" battery needs maintenance from time to time.

    If you are doing it more often then once or twice a year then I would check 2 things. First check the electrolite level in the battery. It could be getting low. Second check and see if the charging coil is putting out too much.

    I have several factory service manuals here and if you tell me which engine you have I can see if I have the specs for your engine.
     
  3. stslawncare

    stslawncare LawnSite Bronze Member
    from DE
    Posts: 1,484

    doesnt baking soda and water work good?
     
  4. LeoS818

    LeoS818 LawnSite Member
    Posts: 122

    A batter that is not sealed and leaking around the post will corrode the cables fast.
     
  5. XOFMOT

    XOFMOT LawnSite Member
    Posts: 161

    A few years back I worked for a major golf car company as a service tech. and let me tell you, you have never seen corroded cables as much as I have! We tried everything in the world to stop it.... then we discovered roofing tar! yes the stuff you can buy in the gallon container to go up and re-seal around your chimney. We would remove the cables, clean the terminals (wire brush), put new cables on, hose the batteries down with a strong stream of water, let dry, then "PAINT" on the roofing tar sealing the post to the battery case. This stops the oxidation from starting with the batery acid that is emited from the battery caps during charge times. If you battery is a "MAINTENANCE" type (has removable caps), take a look at the caps themself. there should be a rubber seal for each cell that the cap covers and the caps also have vent holes in them to vent the battery during charging.....see where the vents are, they may be venting right onto a terminal, if so just rotate cap or swap caps around until they are positioned away from the terminals (posts).
     
  6. General Grounds

    General Grounds LawnSite Senior Member
    Posts: 902

    :blob3: thanks for the input guys, it was very helpful.T
     
  7. stslawncare

    stslawncare LawnSite Bronze Member
    from DE
    Posts: 1,484

    did any of them work?
     
  8. General Grounds

    General Grounds LawnSite Senior Member
    Posts: 902

    :blob3: have'nt tried yet but will let you know.T
     
  9. Wangel

    Wangel LawnSite Member
    from Kansas
    Posts: 54

    Glue a penny to the top of a battery. The penny will attract the corrosion instead of the battery terminals. Use a drop of silicone sealer for glue. Some shops do this routinely for all battery sales. Change the penny after a few years of when it has corroded fully.
     
  10. BRL

    BRL LawnSite Bronze Member
    Posts: 1,211

    They also sell Corrosion Prevention sprays & a paintable corrosion preventer like the described roof tar specifically for electrical connections. Look for it in an electrical supply place or Home Cheapo type stores in the electrical aisles. Works great & we use it on all of the plow connections too with great success.
     

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