home made battery dischager lamps how to wire in series please?

Discussion in 'Electric Bicycles' started by footpump, Mar 8, 2018.

  1. footpump

    footpump Pedelecer

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    hello all
    I recently changed a bottle battery for a dolphin on my ebike,
    they have different connecters .
    I realised that my bottle battery was fully charged, but had no easy means of discharging it a little

    so I have seen reference to discharging battery by connecting bulbs in series.

    and have purchased 3 mr60 12v 50watt bulbs and holders but have hit a snag

    cannot seem to find idiots guide to wiring up in series, only normal light bulbs

    I do not know which is pos neg on the mr60 nothing on lamps or holder to indicate.


    so info on how to wire these up please DSCF0465.JPG
     
  2. danielrlee

    danielrlee Pedelecer

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    Are they LED, or incandescent MR16s?

    Incandescent bulbs don't have a polarity. LEDs do, but since they are diodes, they simply won't work if the polarity is incorrect.
     
  3. Woosh

    Woosh Trade Member

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    you should use 3 x 12V bulbs wired in series for 36V battery.
     
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  4. footpump

    footpump Pedelecer

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    they are described as halogen, so do these have + or _
     
  5. Woosh

    Woosh Trade Member

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    does not matter. Will work as long as they are linked in series.
     
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  6. footpump

    footpump Pedelecer

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    woosh bulbs are 12v 50w I have 3 making 36v 150w its how to wire in series that I do not know how to do
    thank you
     
  7. danielrlee

    danielrlee Pedelecer

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  8. footpump

    footpump Pedelecer

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    thanks all ill get soldering
     
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