Posts Tagged battery cells
Laptop batteries are generally Lithium-ion batteries, they work buy moving Lithium Ions from the negative electrode to the positive when being used and the opposite when they are charging. They are often used for laptops as they have the best energy-to-weight ratio of all the battery types and only slightly loose change when not in use (about 5-10% per month).
They do, as many of you will know, have several disadvantages, the most prominent being their shelf life. When you charge a Lithium-Ion battery it causes deposits in the electrolyte (much like limescale in your kettle). These deposits reduce the total charge of the battery as well as increasing internal resistance. This is why your laptop batteries eventually die and why laptop manufactures do no cover batteries under warranty, classing them as consumables. Read the rest of this entry »