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Re:Ask HN: Should I unplug my laptop charger at 100%? by zobzu on Monday May 04, 2015 @03:45PM (#9488579)
A lot of laptops allow for various trickle charging modes. Generally they stay charged between 90 and 100% (charges to 100 then wait until 90), some allow for charging to 80.

In my experience there can be memory effects when fully capping at 80% over the years, though.

Re:Ask HN: Should I unplug my laptop charger at 100%? by bkanber on Monday May 04, 2015 @03:57PM (#9488686)
Li-ion batteries do not have a memory effect. LiFePO4 do, however.