On Thu December 10 2009, Klistvud wrote: > > to unplug your battery.. this keeps it from being constantly in the > > CHARGE > > mode, and maybe helps it last longer.. just a thought.... > > I thought this should be taken care of by the charging circuit in the > laptop: if I'm not mistaken, the charging circuit should put the > battery offline when it's fully charged? http://mobileoffice.about.com/od/usingyourlaptop/f/laptopbattery1.htm
Question: If I remove the battery & run from a power source will it lengthen battery life? Answer: Laptop batteries have finite life spans. Whether you use the power cord and remove the battery it will lengthen the life of the battery. Li-Ion laptop battery lifespan is approximately 1000 charge cycles, or 2-4 years under normal operating conditions. Keeping the battery in a cool place can prolong its life but not in a period of extended storage. The Li-ion battery should be stored at 40 percent rather than full-charge state. The battery ages even if not used. For best results, keep the battery cool. In addition, store the battery at a 40 percent charge level. Never fully charge or discharge the battery before storage. The 40 percent charge assures a stable condition even if self-discharge robs some of the battery's energy. Most battery manufacturers store Li-ion batteries at 15°C (59°F) and at 40 percent charge. Keeping a laptop battery on constant charge is and never using it is not good for the laptop battery. Run the battery down and recharging it at least once every month. > > > I have a > > 4-year old > > Dell XPS laptop that never lasts more than 2 hours on battery, but I > > don't > > use it much anymore, since I stopped travelling :) > > My sister has an even older Dell (it must be at least 5 or 6 years) > which still lasts just under an hour on the *original* battery. In the > meantime, I've had at least 3 or 4 batteries in two different Compaqs > die on me. She never unplugged the battery in all these years; she > couldn't care less, really ... sounds like my wife.. she never turns lights off either.. -- Paul Cartwright Registered Linux user # 367800 Registered Ubuntu User #12459 -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org