ESC modification

Discussion in 'Electrical & Radio' started by Boatmeister, Oct 16, 2021.

  1. Boatmeister

    Boatmeister Active Member

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    I was wondering, since lipo's go past 3 cells, what modifications need to be made to handle 4 or more cells? If that's not possible without causing a thermo nuclear meltdown, is there an ESC on the market that can handle the additional cells and have the same forward/brake/reverse we need? Thanks!
     
  2. darkapollo

    darkapollo Well-Known Member

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    you mean the 4/5/6s battery packs? You would need an ESC rated for 4/5/6s.
     
  3. Boatmeister

    Boatmeister Active Member

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    A few years ago there was an article on modifying the ESC to handle 22 volts. I believe the article has since been removed by the author. There are ESC's out there but they're for planes and are mono-directional. I know they exist but just looking for the way to modify what is out there. I could just stay with 3 cell and call it a day. Just looking for options
     
  4. darkapollo

    darkapollo Well-Known Member

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    Ahhh Ok now I’m picking up what you’re looking for.
    There is a 6s for Traxxas 1/10 RC but they are brushless and $260ish bucks.
     
  5. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

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    What application are we looking at? Brushed? Pump? Drive?
     
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  6. Kotori87

    Kotori87 Well-Known Member

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    Look for robot supplier websites. Combat robots were using very high voltages long before most other hobby applications, so I would not be surprised if they have reversible ESCs that can handle 6s LiPo or more.
     
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  7. Boatmeister

    Boatmeister Active Member

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    Brushed. Years ago I picked up a large stash of motors at a swap meet. The guy came over and said "10 dollars buys my table." Obviously I took it!!! I'm just looking for options as some of them are high voltage motors
     
  8. Boatmeister

    Boatmeister Active Member

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    Thanks! Didn't think of that
     
  9. Kevin P.

    Kevin P. Well-Known Member

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    I followed the modification instructions that were posted a few years ago (basically removing one of the chips and the positive wire), but all it got me was a dead ESC - it's possible I made a mistake but I would recommend just finding an ESC that is rated for the desired voltage.

    A few of us have used this ESC, which allows up to 24V. When using it along with a brushed pump, we've seen interference issues ranging from occasional glitches all the way to the ESC not functioning with the pump running, and standard interference reduction techniques were ineffective. They work great otherwise (for convoy or using brushless pump)
    https://www.revrobotics.com/rev-11-1200/

    The hobbywing 880 can handle up to 4S LiPo
    https://www.hobbywing.com/goods.php?id=650&filter_attr=5426.5599.0.0.0.0.0.0.0.0
     
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  10. BigGunJeff

    BigGunJeff Well-Known Member

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