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Thread: High Amp Lipo Battery Load Tester

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    Supporting Member jjr2001's Avatar
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    jjr2001's Tools

    High Amp Lipo Battery Load Tester

    I actually had the carbon piles in this one glowing the other night in the shop.
    It is a conversion of a Chicago Electric (HF) automotive battery load tester..

    Mods include a range doubler for the volt meter so now it is 12v/32v. Amp meter at 500 amps was fine as was the shunt.
    Added two parallel resistive loads for smaller batteries for lower current use and a toggle switch for them.
    Added two fans for cooling. The old battery cables and clamps were removed for a setup that was better suited to model airplane use. After using it for a while I felt I needed some more resistance in the carbon pile so I bought a second one, took 3 or 4 discs from its carbon pile and added them to this one. Not necessary but it makes it easier to keep the pile pulling around 50 amps continuous. (Continuous for about 5 minutes). She does get hot!

    Cheers, JR
    Attached Thumbnails Attached Thumbnails High Amp Lipo Battery Load Tester-dscf0004.jpg  

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  2. The Following User Says Thank You to jjr2001 For This Useful Post:

    PJs (Nov 23, 2016)

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    Aug 2013
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    Thanks jjr2001! We've added your Battery Load Tester to our Model Making category,
    as well as to your builder page: jjr2001's Homemade Tools. Your receipt:

  4. The Following User Says Thank You to DIYer For This Useful Post:

    jjr2001 (Nov 24, 2016)

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