BAPCo Technical Paper: Battery Degradation in Notebook Computers
Today, BAPCo is publishing a technical paper to help customers gain a better understanding of how and why battery life decreases in notebook computers.
Lithium ion batteries have lower weight and higher energy compared to other battery chemistries, making them a good choice for powering devices ranging from electric vehicles to mobile phones and notebook computers. However, like all batteries Li-ion batteries suffer degradation in performance and the ability to maintain charge capacity over time due to major factors such as temperature, state of charge, and C-rate. In fact, according to some research, notebook computers can suffer up to a 50% degradation in usable battery capacity in the first year given certain usage patterns. This paper will examine major factors responsible for battery degradation and provide a simple to understand formula which the consumer can use to determine the level of battery degradation in a device such as a notebook computer.