How do I extend the long-term life of my new laptop battery?
October 27, 2005 1:00 PM Subscribe
How do I extend the life of my new laptop battery? I'm not talking about per-charge capacity, but long-term reusability - maximizing the amount of time before this battery becomes a useless brick like the last one.
posted by Caviar to technology (18 answers total) 5 users marked this as a favorite
This is in particular reference to li-ion and li-po batteries.
Various bits of possibly conflicting information I've collected:
a) You're not supposed to store batteries empty. Batteries left out of the machine will lose charge over time. Batteries left in the machine will lose charge over time.
b) You're not supposed to leave the battery in the machine and run on AC all the time. Doing so will kill the life expectancy.
c) You're not supposed to charge cycle the battery frequently, as the long-term life expectancy is measured in charge cycles.
d) You're not supposed to deep discharge the battery (not sure what this means in terms of reported battery capacity).
e) You're not supposed to use the battery before it has finished charging, once you start charging, but it needn't be fully discharged before charging (unless you want to blow a cycle without fully using it).
So, my question is two-fold:
1) Which of these are true?
2) What's the best strategy for maximizing the long-term life of a laptop battery, assuming you have access to AC power on a regular basis if you need it?