On Fri, Jul 30, 2010 at 5:08 PM, Christian Jaeger <chr...@gmail.com> wrote:
> 2010/7/30 Mark <mamar...@gmail.com>: > > Or do you shutdown when the battery > > reaches, say, 5%? > > > > I just ordered a few laptop battery replacements > > I guess you're talking about Lithium ion or Lithium polymer batteries > (as all modern devices are using either of those)? Then you do rather > *not* want to deep discharge them often, or at least not leave them in > this state for a long time. They are said to live longest when about > half full. Unlike NiCd batteries they exhibit no memory effect, so > there is no use for deep discharge except occasionally to let the > electronic fuel gauge recalibrate itself so that the displayed charge > percentage is correct. Aside keeping them half full and keeping them > at cool temperatures, you can do nothing to prevent those batteries > from loosing capacity over time, they age whatever you do. > Thank you Christian. Correct, Li-ion is the discussion here. So is there a way to keep the battery in the laptop, without it charging to 100%? Both machines in this case are Dell's, one Inspiron and one XPS, both 5+ years old.