How to dispose of lipos

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  • BHChieftain
    Fast Electric Addict
    • Nov 2009
    • 1969

    #1

    How to dispose of lipos

    I've seen references to putting them in a bucket of salt water. How much salt say in a gallon of water?

    Chief
  • Unsullied_Spy
    Member
    • Nov 2008
    • 91

    #2
    I'm not sure how much salt it takes, but if you slowly discharge them once they hit ~1v/cell the cell chemistry breaks down and becomes inert at which point you can toss it in the normal garbage...unless it's a Maxamps pack in which case you send them to me for disposal:






    Comment

    • m4a1usr
      Fast Electric Addict
      • Nov 2009
      • 2038

      #3
      ** DISPOSAL OF LIPO BATTERIES **
      Unlike NiCd batteries, lithium-polymer batteries are environmentally friendly.
      For safety reasons, it’s best that LiPo cells be fully discharged before disposal (however,
      if physically damaged it is NOT recommended to discharge LiPo cells before disposal -
      see below for details). The batteries must also be cool before proceeding with disposal
      instructions. To dispose of LiPo cells and packs:
      1. If any LiPo cell in the pack has been physically damaged, resulting
      in a swollen cell or a split or tear in a cell’s foil covering, do NOT discharge the battery.
      Jump to step 5.
      2. Place the LiPo battery in a fireproof container or bucket of sand.
      3. Connect the battery to a LiPo discharger. Set the discharge cutoff
      voltage to the
      lowest possible value. Set the discharge current to a C/10 value, with “C” being the
      capacity rating of the pack. For example, the “1C” rating for a 1200mAh battery is 1.2A,
      and that battery’s C/10 current value is (1.2A / 10) can be used,
      such as a power resistor or set of light bulbs as long as the discharge current doesn’t
      exceed the C/10 value and cause an overheating condition.
      For LiPo packs rated at 7.4V and 11.1V , connect a 150 ohm resistor with a power rating
      of 2 watts (commonly found at Radio Shack)to the pack’s positive and negative terminals
      to safely discharge connecting it to an ESC/ motor system and allowing the motor to run
      indefinitely until no power remains to further cause the system to function.
      4. Discharge the battery until its voltage reaches 1.0V per cell or
      lower. For resistive load type discharges, discharge the battery for up to 24 hours.
      5. Submerse the battery into bucket or tub of salt water. This container should have a lid,
      but it should not need to be air-tight. Prepare a plastic container (do not use metal) of cold
      water. And mix in 1/2 cup of salt per gallon of water. Drop the battery into the salt water.
      Allow the battery to remain in the tub of salt water for at least 2 weeks.
      6. Remove the LiPo battery from the salt water, wrap it in newspaper or paper towels and
      place it in the normal trash. They are landfill safe


      Or you could use the 223 method like above and be done with it!


      John
      Change is the one Constant

      Comment

      • H2OCamel
        FAST ELECTRIC EVERYTHING
        • Oct 2007
        • 484

        #4
        LOL I love it "spy"!!
        "Discussion is an exchange of knowledge; an argument, an exchange of ignorance." Robert Quillen

        Comment

        • BHChieftain
          Fast Electric Addict
          • Nov 2009
          • 1969

          #5
          Originally posted by m4a1usr
          ** DISPOSAL OF LIPO BATTERIES **
          Unlike NiCd batteries, lithium-polymer batteries are environmentally friendly.
          For safety reasons, it’s best that LiPo cells be fully discharged before disposal (however,
          if physically damaged it is NOT recommended to discharge LiPo cells before disposal -
          see below for details). The batteries must also be cool before proceeding with disposal
          instructions. To dispose of LiPo cells and packs:
          1. If any LiPo cell in the pack has been physically damaged, resulting
          in a swollen cell or a split or tear in a cell’s foil covering, do NOT discharge the battery.
          Jump to step 5.
          2. Place the LiPo battery in a fireproof container or bucket of sand.
          3. Connect the battery to a LiPo discharger. Set the discharge cutoff
          voltage to the
          lowest possible value. Set the discharge current to a C/10 value, with “C” being the
          capacity rating of the pack. For example, the “1C” rating for a 1200mAh battery is 1.2A,
          and that battery’s C/10 current value is (1.2A / 10) can be used,
          such as a power resistor or set of light bulbs as long as the discharge current doesn’t
          exceed the C/10 value and cause an overheating condition.
          For LiPo packs rated at 7.4V and 11.1V , connect a 150 ohm resistor with a power rating
          of 2 watts (commonly found at Radio Shack)to the pack’s positive and negative terminals
          to safely discharge connecting it to an ESC/ motor system and allowing the motor to run
          indefinitely until no power remains to further cause the system to function.
          4. Discharge the battery until its voltage reaches 1.0V per cell or
          lower. For resistive load type discharges, discharge the battery for up to 24 hours.
          5. Submerse the battery into bucket or tub of salt water. This container should have a lid,
          but it should not need to be air-tight. Prepare a plastic container (do not use metal) of cold
          water. And mix in 1/2 cup of salt per gallon of water. Drop the battery into the salt water.
          Allow the battery to remain in the tub of salt water for at least 2 weeks.
          6. Remove the LiPo battery from the salt water, wrap it in newspaper or paper towels and
          place it in the normal trash. They are landfill safe


          Or you could use the 223 method like above and be done with it!


          John

          Thanks John,
          Chief

          Comment

          • sailr
            Fast Electric Addict!
            • Nov 2007
            • 6927

            #6
            1/2 a cup is plenty.

            Originally posted by BHChieftain
            I've seen references to putting them in a bucket of salt water. How much salt say in a gallon of water?

            Chief
            Mini Cat Racing USA
            www.minicatracingusa.com

            Comment

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