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  1. #1

    Post

    I was visiting a pollination jobsite when a bear crossed the road. So I looked at the recent article on fencing out bears and bought a 12V battery fencer. The first battery was bought new. Anyone know much about these things to explain why the Amp rating is important? Also, can I just get used batteries from junkyards, charge them up and put them to use?

    Anyone have any experience with using them for fencing out bears?

    Gracias

  2. #2
    Join Date
    Jan 2005
    Location
    North Georgia mountains
    Posts
    923

    Post

    There is a reason they are called JUNK yards...

    BubbaBob

  3. #3
    Join Date
    Sep 2004
    Location
    Devils Lake, North Dakota
    Posts
    9,123

    Post

    How are you charging your battery?

    A deep cycle battery would be the best option. Amp hours is the figure that will give you an idea of run time based on amperage use of the fencer.

    Junk yard batteries are 2 thumbs down in my opinion. Too much of a crap shoot.

    Solar powered fencers are quite nice.

  4. #4
    Join Date
    Apr 2002
    Location
    Round Top, New York - Northern Catskill Mtns.
    Posts
    1,895

    Post

    A deep cycle marine battery is the only way to go.
    Without the battery working and strong, the fence is useless.
    As far as amp rating, you can run a fence on a 6 volt lantern battery, but it will not run long.
    Typically the higher the amp rating, the larger the battery with more stored energy. This will allow for long use between charging.

  5. #5
    Join Date
    Oct 2003
    Location
    Wallaceton, Pa. U.S.A.
    Posts
    20

    Post

    batteries are made for different uses some have high cranking amps for high load useage. If you use these on a fence charger they will not last long. Deep cycle batteries are made for light loads over a long period of time. Buy a 2amp charger for the deep cycle and use a car battery on the fence while you charge your deep cycle.
    rick

  6. #6
    Join Date
    Jan 2005
    Location
    North Georgia mountains
    Posts
    923

    Post

    or use a deep cycle on the fence and keep it charged with a SEPARATE solar panel. The solar combos are either way overpriced, junk, or both.

    BubbaBob

  7. #7
    Join Date
    Jan 2005
    Location
    North Georgia mountains
    Posts
    923

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    or use a deep cycle on the fence and keep it charged with a SEPARATE solar panel. The solar combos are either way overpriced, junk, or both.

    BubbaBob

  8. #8
    Join Date
    Apr 2002
    Location
    Round Top, New York - Northern Catskill Mtns.
    Posts
    1,895

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    Deep Cycle batteries are designed to be used at what ever the load or amp draw and be drawn down to a lower reserve energy level. They are then re-charged. Deep cycle batteries will survive this type of service.
    Standard batteries are designed to be used and recharged continually, low draw down. They do not last long when they are drawn down to low reserve energy levels and re-charged again and again. The battery fails to hold or take a charge when operated to low draw down levels.
    As far as AMP ratings go, whether you want to look at AMP HOURS or Cranking AMPS, the higher the number / rating the more stored energy and the longer the battery will charge the system.

  9. #9
    Join Date
    Mar 2005
    Location
    Erin, NY /Florence SC
    Posts
    3,361

    Post

    We've switched to solar fencers, they cost the same as a fencer and a battery and do just as well without toting batteries and plugging in chargers all the time. The real secret to a bear fence is not that it has to be like fort knox but to hang bacon on it and get the bears' nose or tongue on it. If you have a home yard you'll know the the 1st time they hit it! Then they are educated about beeyards. We use 2 wires, 1 8/9 inches off the ground and a second 18 inches, with fiberglass poles. If you're a cheapskate like the rest of us you can cut muslin into strips and dip it in that can of bacon grease you've had in the frig for years and didn't really know why.

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