Our main problem with laptop batteries is when people run their laptops only from mains power. For some reason the batteries are often useless after 12 to 18 months. These people would be better discharging battery to 40% and then storing it till needed. My own notebook gets fully discharged maybe every two or three weeks, runs quarter the time on battery, three quarters on mains - this battery is currently still showing good life (over a year old now) although I haven't checked to see if it's duration is 20% down, it may well be (use to give 4 1/4 hours, I think I still get around 4 hours).
I guess my point is that how you use your battery has a big influence on it's lifespan. Regards, Bryce Stenberg > -----Original Message----- > From: Douglas Royds [mailto:[EMAIL PROTECTED] > Sent: Thursday, 1 September 2005 9:17 a.m. > To: [email protected] > Subject: Re: ot: lappie batteries. > > Lithium-Ion batteries simply have a short life. The common > rule of thumb is 20% loss of capacity per year - whether it's > used or not - and another 20% per 100 deep cycles. These > figures get a lot worse with increasing temperature.
