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Lego parts with battery allowed?

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  • Lego parts with battery allowed?

    Can we use a LEGO battery box with non-LEGO batteries inside? I know the EV3 can use non-LEGO AA batteries. The reason for this is for weight as all Lego parts are light.

  • #2
    I think R05 would forbid additional batteries that are not powering the brick. However, not all LEGO parts are light-weight, in fact there are some LEGO parts designed specifically to be heavy. The team I'm coaching has some heavy bricks - not sure what set they were originally part of. They were counter-weights on the robot last season but are being put to good use this season.

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    • #3
      Thanks for the explanation. We couldn't find anything that is really heavy. Maybe multiple steel balls? Do you have any suggestions for heavy weight parts?

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      • #4
        Google "LEGO weight brick".

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        • #5
          There is a Lego boat ballast brick. We are using two this year.

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          • #6
            Tires are heavy. Many teams use tires for ballast or counterweights.

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            • #7
              Steel caster balls make good ballast. https://education.lego.com/en-us/pro...pack-3/2000702

              Even better is LEGO #73090 Train & Boat Weight / Ballast 2x6x2 but you'll have to buy them used. I found 4 on eBay for $23.

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