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Is it better to let lithium batteries stay plugged in or constant 80/20 cycle (lemmy.world)

submitted 11 months ago by Smokeydope@lemmy.world to c/asklemmy@lemmy.ml

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I am doing research on best practices for my lithium batteries and lifepo4 powerstation. There's some conflicting opinions and variation for cycle numbers.

Will leaving my things plugged in at 100% hurt it more than constantly unplugging at 80% and replugging at 20%?

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[–] lemann@lemmy.one 1 points 11 months ago

Lithium chargers completely stop charging when the battery is full. Even if the charger remains plugged in, the battery will not be receiving power

That said, letting a lithium battery sit at 100% indefinitely is not good for it. If you can, reprogram the charger to fill the lithium to 80% instead, otherwise just let the battery sit at 100% as usual and just replace it after a few years when the runtime no longer is long enough for your application

I believe things are different for Lifepo4 which IIRC is more accepting of a float charge when full, although not ideal.