Kwan Lowe wrote: > On Wed, Aug 5, 2009 at 11:14 AM, Blake Hudson<blake at ispn.net> wrote: > >> How old is your laptop? This may be a case of expectations not meeting >> reality. As the Wiki article linked previously mentions, LiION batteries >> deteriorate over time and with use (as do all batteries). In my >> experience, a typical laptop battery (treated well) will last 2 years >> while maintaining the majority of its original capacity. After 5 years, >> the battery run time is often inadequate to meet the needs of the owner. >> When purchasing a laptop, I would have the expectation that the battery >> will need replaced every 2-3 years - if the laptop is used, assume that >> it needs a new battery. > > The laptop is about 18 months old, so the battery was nearing its end > but I'd hoped for at least another 6 months of useful time (more than > 10 minutes). The battery is in worse condition than three identical > batteries in the other 3 laptops purchased at the same time. The main > difference is that this laptop is plugged in continuously while the > others are mobile. That's usually a symptom of an individual cell that has failed. You could open up the batterypack and start replacing the individual cells, but I'd recommend just getting a new battery or even a new laptop... Glenn