Which battery type has a limited life?

We rely on our laptops to provide us with mobile computing power, but there are operational differences between some of the most common battery technologies. Which battery type begins to degrade when they’re charged, making the charge capacity decrease as the battery is used, charged, and reused?

A) Nickel-Cadmium (NiCd)

B) Nickel Metal Hydride (NiMH)

C) Lithium Ion (Li-ion)

D) Alkaline

The answer: C) Lithium Ion (Li-ion)

Lithium batteries are very light, and they don’t have the nagging “memory” problem that many rechargeable battery technologies present. However, the lithium-ion batteries lose a bit of charge capacity each time they are recharged so they have a limited life and ultimately need to be replaced to run a laptop for longer time periods.

Want to know more? Watch “Laptop and Portable Technologies.”

Although laptop and portable devices often provide similar functionality to desktop PCs, there are some important differences to consider for the CompTIA A+ exam requirements. In this video we’ll discuss some of these differences such as form factors, expansion slots, input devices, and power.