IIRC, when the battery is charged the charging stops (this stops the battery from exploding!). When charging is turned off, the laptop will run on battery power for a short while and once the battery is not 100% full (as you say ~95%) the charger re-engages.
I see this when I charge my mobile phone, it will charge... the charger will then indicate that the phone battery is fully charged and change state. A few hours later, it will then re-engage to charge the phone. I'll have to take a check of actual charge on my laptop battery, but I know that after ~3 years Ni-MH battery packs are approaching the end of their life. For more technical details of how charging Ni-MH batteries takes place, I suggest having a read of http://en.wikipedia.org/wiki/Nickel%E2%80%93metal_hydride_battery#Charging As I understand it, laptops and mobile phones use the 'fast charge' method, which requires some 'intelligence' on the side of the charging system. Regards, Phillw On 6 December 2013 15:15, Lars Noodén <lars.noo...@gmail.com> wrote: > > On 11/18/2013 11:07 PM, Phill Whiteside wrote: Hi Lars, > > > > mine doesn't spend too long unplugged from the power. But when I do > > run it on battery it behaves as expected. I do have a nearly new > > battery in piglet, as the other couldn't hold a charge (it was a > > mis-used windows machine in its previous life). I've certainly no > > problems getting an hour out of running at full power (no dim screen > > etc). > > > > Regards, > > > > Phill. > > On several occasions I've been able to leave it plugged in over night > and continue to use it while plugged in. Even then the > xfce4-power-manager periodically comes up with a notification that the > battery is charging. That usually lasts for a few seconds, during which > it shows that batter at 0% or 95%. After that pause it then goes back > to a notification saying fully charged, and a check shows 99%. > > ACPI shows some fluctuation with design capacity and last full capacity > over time. > > Regards, > /Lars > > > > > -- > Mailing list: https://launchpad.net/~lubuntu-qa > Post to : lubuntu-qa@lists.launchpad.net > Unsubscribe : https://launchpad.net/~lubuntu-qa > More help : https://help.launchpad.net/ListHelp > -- https://wiki.ubuntu.com/phillw
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