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Thread: Old CR2, still safe?

  1. #1

    Default Old CR2, still safe?

    I have a RCR2 battery that's been sitting on a shelf for 10+ years

    It's AW brand

    It hasn't been charged in that time, can't remember if it was fully charged before being left there

    Is it safe to use and charge?

    If I leave it there for another few years, is there a danger it will degrade and explode?

  2. #2
    archimedes's Avatar
    Join Date
    Nov 2010
    CONUS, top left

    Default Re: Old CR2, still safe?

    What is the resting (open-circuit) voltage right now ... before charging / discharging and / or doing anything to it ?
    ... is the archimedes peak

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