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Propper disposal of lipos?

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  • #31
    I have seen a chap cut an old lipo in half with a machete
    when I saw what he was about to do I legged it out of the way
    and nothing happened apart from the lipo being cut in two
    however I wouldn't recommend trying it for yourself due to safety reasons
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    • #32
      Originally posted by ChrisB View Post
      Me too.

      Humans love to contaminate their enviroment at every possible opportunity.
      Do you drive a car, or use electricity from the grid? Have you ever been in an aeroplane?
      Let he who is without sin, etc.

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      • #33
        I also dispose of all NiMH battery's in the correct way too...,.............by unwrapping them to use the inner strip to make Chrystal meth.
        Yes the big sigpic is coming back

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        • #34
          Originally posted by Grumpy View Post
          Li-Ion charge to 4.2V per cell just like LiPo. The main reason they are considered safer is that they are sealed in a metal case so more durable and cant swell or burst like a LiPo can. Mobile phones use LiPo (pouch type cells)
          Morning mate.

          Ah no mate they don't, Li-Ion only go to 3.7 I think off the top of my head, slightly lower voltage than LiPo.
          I know this as I used to use Fromeco Relions cells years ago, which were kinder to 4.8 volt only servos compared to the higher LiPo voltage. Also we have a different charging setting for Li-Ion over LiPo.

          Mobile phones use Li-Ion not polymer as it's considered a safer medium compared to the latter.

          I'll snap a photo of my Note 4's old battery I have sat in my office.

          Different chemistrys obviously effect the battery but traditionally Li-Ion terminate charge at a lower voltage.

          "The charging voltage of a 3.7V LiPo or LiIon is 4.2V, but for a*3.6V*one it is only 4.1V! You could easily damage a*3.6V*LiIon cell by charging it to*4.2V.*The nominal voltage of Li-ion cells is*3.6V-3.7V, depending on the manufacturing technique."

          Ian
          Last edited by coolice; 07-01-2018, 11:25 AM.
          Ian Contessa
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          • #35
            Ian,
            Nope, I'm absolutely 100% sure that standard Li-ion batteries charge up to 4.2V, exactly the same as a LiPo It was actually stated in the quote you attached to your post:
            The charging voltage of a 3.7V LiPo or LiIon is 4.2V
            There are lower voltage chemistry available,you are maybe thinking of LiFePO4 'Lithiium Iron Phosphate'. In the RC world these are often referred to as LiFe batteries and they are different from regular Li-ion batteries.

            I have lots of LiIon cells and charge them regularly. This is information that's widely available so it's really not up for debate. Here's an example of a typical '18650' Li-ion battery, note charge voltage stated: https://www.nextdaybatteries.com/pro...18650b-3400mah

            And the page from 'Battery University' on charging of Li-Ion batteries:Charging Lithium-Ion Batteries – Battery University
            Charging Cobalt-blended Li-ion

            Li-ion with the traditional cathode materials of cobalt, nickel, manganese and aluminum typically charge to 4.20V/cell.
            3.7V is the nominal running voltage for Li-Ion, which again is the same nominal running voltage as stated for LiPo batteries.
            Last edited by Grumpy; 07-01-2018, 12:20 PM.
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            • #36
              Originally posted by Grumpy View Post
              Ian,
              Nope, I'm absolutely 100% sure that standard Li-ion batteries charge up to 4.2V, exactly the same as a LiPo It was actually stated in the quote you attached to your post:


              There are lower voltage chemistry available,you are maybe thinking of LiFePO4 'Lithiium Iron Phosphate'. In the RC world these are often referred to as LiFe batteries and they are different from regular Li-ion batteries.

              I have lots of LiIon cells and charge them regularly. This is information that's widely available so it's really not up for debate. Here's an example of a typical '18650' Li-ion battery, note charge voltage stated: https://www.nextdaybatteries.com/pro...18650b-3400mah

              And the page from 'Battery University' on charging of Li-Ion batteries:Charging Lithium-Ion Batteries – Battery University


              3.7V is the nominal running voltage for Li-Ion, which again is the same nominal running voltage as stated for LiPo batteries.
              Hey buddy.

              This is where the different chemistrys come into play. But yes I am referring to LiFe packs with the lower nominal voltage, which are classed as Ion but of course not the newer 18650 cell type.

              This site has a great chart as well with the different cell make ups listed and the voltage differences.

              https://www.quora.com/What-is-the-di...ithium-polymer

              Hence where I've gone wrong as I'm still calling LiFe Li-ion when I shouldn't perhaps.

              Ian
              Last edited by coolice; 07-01-2018, 01:01 PM.
              Ian Contessa
              Robbe SchluterUK / Midland Helicopters / Align



              Coolice Power Supplies
              Coolice Custom Built Charge Case's

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              • #37
                Does anyone know how much of the battery gets recycled? That might make us more inclined to make the trip to the recycling centre.
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                • #38
                  Originally posted by JamieD View Post
                  Does anyone know how much of the battery gets recycled? That might make us more inclined to make the trip to the recycling centre.
                  When I took few lipo's to the local recycle centre back last year the only information I got to find out from a worker there was the percentage of lipo's recycled was minimal but he was aware every part of the lipo is recyclable except for the wire insulation and plugs, I've since recycled on another three visits and each time ive seen other lipo's in the bin so we are starting to recycle them.
                  Oh yeah and he did say best if you can discharge them but most batteries have a level of charge in them as do car batteries which are recycled in a different bin.
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                  • #39
                    My local council where quite happy to take them, I did discharge them fist and cut the ends off.

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                    • #40
                      Originally posted by russellw View Post
                      My local council where quite happy to take them, I did discharge them fist and cut the ends off.
                      Do they not recycle the plug conectors and wires as our recycle centre do or is this just an addeded safety that you cut the ends off.
                      Today's outlook is fine for flying.
                      • Spektrum DX18 gen2, Phoenix Sims, Align MR25XP.
                      • Blade Nano, mCP X, 130x, Blade 180, Mini T 450se
                      • Trex 250dfc Gpro, Trex 500EFL Gpro.
                      • Trex 600E Gpro DFC, Trex 600NSP now Gpro, DFC, Redline 56
                      • Flickr Through My Pictures.
                      • A helicopter is an aircraft that is lifted and propelled by one or more horizontal rotors because Wikipedia said so.

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                      • #41
                        Originally posted by tourerjim View Post
                        When I took few lipo's to the local recycle centre back last year the only information I got to find out from a worker there was the percentage of lipo's recycled was minimal but he was aware every part of the lipo is recyclable except for the wire insulation and plugs, I've since recycled on another three visits and each time ive seen other lipo's in the bin so we are starting to recycle them.
                        Oh yeah and he did say best if you can discharge them but most batteries have a level of charge in them as do car batteries which are recycled in a different bin.
                        I thought as much. A cardboard box - easy to recycle. But a battery with lots of elements packaged together with hazardous chemicals between, I'm sure most of it ends-up in landfill/incinerator anyway.
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                        • #42
                          Cutting of the wires is always handy for making adaptors.
                          Yes the big sigpic is coming back

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