Lithium Ion Notebook Battery Cells - What's Inside Notebook
Batteries? Have you ever wondered what's inside notebook
batteries? Hopefully, you've resisted the temptation to crack
the notebook battery open, since that not only voids any
warranty you have, but can also be quite dangerous. Since our
trained technicians have opened several notebook batteries in
the safety of our lab, we thought we should share what we found.
From the outside, notebook batteries appear to be one solid
mass, but notebook batteries actually consist of three component
parts covered by a plastic shell or wrapper. The largest
"ingredient" by weight and volume are the energy cells that
generate power, but you'll also find a small printed circuit
board (PCB) that controls how the notebook battery cells are
recharged, as well as the connector that interfaces with your
notebook. Most new notebook batteries consist of 6, 9 or 12
lithium ion cells, carefully matched together because of their
identical impedance levels. (Impedance, which is m