r/science • u/mvea Professor | Medicine • Jan 03 '20

Chemistry Scientists developed a new lithium-sulphur battery with a capacity five times higher than that of lithium-ion batteries, which maintains an efficiency of 99% for more than 200 cycles, and may keep a smartphone charged for five days. It could lead to cheaper electric cars and grid energy storage.

https://www.newscientist.com/article/2228681-a-new-battery-could-keep-your-phone-charged-for-five-days/
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u/HenkPoley Jan 04 '20

Nah, just the activity of charging above 80% wears more than the charging the lower full 80% 'cycle'.

Storage is even another thing.

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u/[deleted] Jan 04 '20

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u/peteroh9 Jan 04 '20

But who should I believe? Someone with no sources or someone whose source is basically "I heard that...?"

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u/HenkPoley Jan 04 '20

AccuBattery for Android cites some sources.

https://accubattery.zendesk.com/hc/en-us/articles/210224725-Charging-research-and-methodology

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u/peteroh9 Jan 04 '20

So does that mean it's best for batteries to have the lowest possible charge?

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u/HenkPoley Jan 04 '20

Apparently satellite batteries are kept between 40% and 60%. So I'd say halfway charged is best.