I was thinking about buying a wurkkos fc11 as my first flashlight but it said they recommend untwisting it in a review to avoid making a connection so it doesn’t discharge while not in use. Do I need to worry about that with all flashlights? I was planning on keeping it in my backpack so I have it whenever.

  • Adair21@lemmy.worldM
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    1 year ago

    To add to this, if you are going to store your Li-ion batteries for any period of time then you should charge them to 3.7v instead of a full charge. This will extend the life of the battery

    • dmenezes@lemmy.world
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      1 year ago

      Good tip, but the OP should be aware that when at 3.7V they have only ~50% charge in them, so remember to also pack a spare or two (at the same voltage) to have the same total runtime.

      • parrot-party@kbin.social
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        1 year ago

        Should be closer to 60% but still, it’s not in a long term ready state. Long stored batteries should be recharged before use.

      • SiteRelEnby
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        1 year ago

        In general, recharging them before use is better - if you’re preserving battery life as much as possible the ideal profile is to charge them to ~4.1V, use until ~3.5, then store at 3.6-3.7 until charged for next use, ideally minimising time sitting at full. Going below 3.4ish takes progressively more out of the battery life.

    • friftar@feddit.de
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      1 year ago

      Worth mentioning that some chargers offer a storage option, charging to exactly 3.7V.

      On a charger that doesnt have this, it can be difficult to monitor it closely enough to get that exact voltage.