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  1. #1
    I Ride for Donuts
    Reputation: CommuterBoy's Avatar
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    Long term storage of Magicshine battery?

    I'm getting out of headlight season for my commute, and I got the 1000 Lumen Magicshine headlight in the middle of this winter. I've only had AA powered lights before this. I will use the headlight a couple times throughout the summer, but for the most part it will sit unused until October or November. Do I need to do anything special or just stick it in a drawer?

    Should I charge it fully before storing it? Drain it fully? Set it upside down? Pack it in ice? Wrap it in tinfoil? Put it in the fridge? Anything?
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  2. #2
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    Reputation: thickfog's Avatar
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    Don't drain or charge it fully. Half full to 3/4 full is what lipos like when in storage.
    They are like humans when we chill - don't like being too full or having an empty stomach.

    I don't think it wants to live in ice, the fridge or tinfoil.

    How would you like someone storing you upside down?

    Batteries have feelings too. Piss it off and it'll burn down your house.

  3. #3
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    Quote Originally Posted by CommuterBoy View Post
    Should I charge it fully before storing it? Drain it fully? Set it upside down? Pack it in ice? Wrap it in tinfoil? Put it in the fridge? Anything?
    I think the best is, to [dis]charge it to about 70% and put in the refrigerator. Protect from moisture, too.

    Also, periodical voltage check may be useful: the battery's protection circuit consumes small amount of current, so eventually recharge needed to compensate that.

  4. #4
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    I'd recommend just storing in the *fridge in a plastic container with about a 75-50% charge. ( * DO NOT PUT IN THE FREEZER ) Li-ion have a very low self-discharge so you should be good for at least a couple months. After a couple months I'd take it out ( let it warm up first ) and than test to make sure the charge isn't too low. If your lamp has a low-voltage warning it will let you know right away if the battery needs a bit more of a charge.

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