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Magic fix for smart devices Rule (media.kbin.social)

submitted 7 months ago by static@kbin.social to c/196@lemmy.blahaj.zone

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[-] misophist@lemmy.world 6 points 7 months ago

I know keeping a battery at 100% is worse than 80% for li-ion batteries. That is not the discussion. OP specifically suggested a constant full charge/discharge cycle as an improvement over leaving the device plugged in, and I can't imagine that being better for the battery.

[-] princessnorah@lemmy.blahaj.zone 2 points 7 months ago

I guess what I was trying to say is that yeah, it probably would be better than keeping it fully charged. I wouldn’t let it dip below 20% though.

[-] Eheran@lemmy.world 1 points 7 months ago

Lower is no problem. The damage is done by the high voltages and also temperature. Don't go below something like 2 V and you will be just fine.

[-] princessnorah@lemmy.blahaj.zone 1 points 7 months ago

Whilst going below 20% is definitely a lot less bad than going over 80%, it will have the longest life if you stick between those two.

[-] Eheran@lemmy.world 1 points 7 months ago

No. Going as low as possible and staying as low as possible is the best for any lithium battery. Here a good source: Accubattery. Note how "battery University" is not a credible source, despite their name. Maybe they made people believe this in the first place.

And here a primary source for the most fragile LiPo cells. Look at figure 7. Even down to 1.2 V and the cells still reached 50 cycles until they were at 80 % remaining capacity. Not going below 2 V and it will be just fine.