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Thread: Discharger or bank

  1. #1
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    Default Discharger or bank

    Looking for the best way to go about discharging without spending a crazy amount of $.

  2. #2
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    what voltage cells do you have? All different or mainly 4S??
    Nortavlag Bulc

  3. #3
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    All different. The isdt discharger crapped out on me.. looking for something better possibly even faster

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    Wondering if this is worth a shot https://www.progressiverc.com/skyrc-...-analyzer.html

  5. #5
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    Looks nice. I am trying to replicate the RL Power discharger or a version of it for 4S. All components were cheap from China but had to wait a month for them. Almost done building it, I need more Arctic silver epoxy.
    Nortavlag Bulc

  6. #6
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    There is a thread somewhere that someone used an old hair dryer converted and it works well!! It came from RC Groups I think?
    Nortavlag Bulc

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    http://www.hawk-creation.com/index.p...roduct_id=4769

    Something like this?

    I must arm a discharger yet. I improvise with lamps of cars type H7 or H1 or H4 that are of 12v 35w / 55w and I connect them in series to download a pack of 6s.
    Just be careful with the temperature of the incandescent bulbs.

  9. #9
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    That's what I'm making.

    If you wait you can buy the parts for roughly 1/2 the price or less.


    Quote Originally Posted by jim82 View Post
    Nortavlag Bulc

  10. #10
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    Quote Originally Posted by ray schrauwen View Post
    That's what I'm making.

    If you wait you can buy the parts for roughly 1/2 the price or less.
    Yea I was looking at parts last night. I may end up doing that make a few

  11. #11
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    Quote Originally Posted by jim82 View Post
    That unit is only for 1S and 2S packs, and is to be used with a iCharger 406/308/4010 unit.

    Larry
    Past NAMBA- P Mono -1 Mile Race Record holder
    Past NAMBA- P Sport -1 Mile Race Record holder
    Bump & Grind Racing Props -We Like Em Smooth & Wet

  12. #12
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    Yep 308 is what I need one for. I probably will end up trying to build a few. I watched a video of someone testing it with more than 2s also and it seemed fine

  13. #13
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    I am using two layers of 4 Resistors for a total of 8 and 6 fans. MOre like a big mac. Top and bottom 4 are in parallel and the two are then in series to get correct resistance I wanted.
    All 1ohm 100watt resistors. Total R is .5 ohms. Since I do 4S packs mainly, it will pull about 30'ish amps. I have a voltage monitor and will get a heavy contact manual switch for it.
    Nortavlag Bulc

  14. #14
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    I use small heater/demister units for cars & trucks. Cheap as chips.
    Here's a link with some info & numbers if you are interested.
    I started with a 24V unit for 6s packs, & then also bought a 12v unit for the 2s, 3s ,& 4s packs.

    https://forums.offshoreelectrics.com...ger-Experiment

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    30739765_1820322178269515_3116394352620863488_n.jpg

    The heaters seems an excellent idea. But it is not common to find them where I live. I use automotive halogen lamps.
    I got 24V 150W lamps to assemble a small battery discharger. Simple.

  16. #16
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    I did end up getting that one from eBay to try. It has 4 fans I hook them straight to the power supply. I've now cycled every battery I own with it at 20a and it works awesome. I also ordered parts from China to build a bigger unit but I'm sure it will take a month or so before they get here.

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  18. #18
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    I gave up lightbulbs when we transitioned from Nimh to lipo.
    Nortavlag Bulc

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