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  1. #1
    Bigger is better!
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    Protection circuit in MS batterypack?

    Does anyone know if the MS batterypack has built-in protection for over-discharge?

    They sell the packs separately on DX (sku 32756), and I'm thinking about using them with a DIY light, possibly without protection in the driver..

  2. #2
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    Several of the posts here

    http://www.dealextreme.com/forums/forums.dx/forum.32756

    say that the pack has a protection PCB for the whole pack. Can someone give a 100% confirmation of this?


    Thanks

  3. #3
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    Quote Originally Posted by langen
    say that the pack has a protection PCB for the whole pack. Can someone give a 100% confirmation of this?
    Battery has protection, yes.

  4. #4
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    Four unprotected 18650 cells in 2 parallel 2 series (2P2S) configuration with a separate protection PCB.

    The PCB has three inputs (Battery +ve, Battery -ve & the mid point) and has two outputs (+ve and -ve to the light head).

    Provides under-voltage and over-current potection (possibly temperature protection also).

    The battery packs usually need sealing (dip or cling wrap) if used in the wet. Water is usually what kills the packs outright.

    HTH.

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