mm wrote:
I've read a lot here about replacing the batteries in rechargeable
battery packs, but always about portable power tools.

Is it also possible to do this with battery packs for laptop
computers?


A friend was given a beautiful, used laptop, but doesn't have enough
money to buy a brand new battery. Can individual cells be replaced at
lower cost?

E-bay it and you will find some pretty decent prices from power
sellers. They aren't OEM but they will get you down the road a ways.
You won't be able to buy the batteries for the price of a new laptop
battery . Upgrade the bios in the computer as those have a lot to do
with the charging system for the laptop batteries.