Laptop batteries can be a bit of a mystery. You’ve been told when you bought your laptop that its battery can last a certain length of time, but can it really last that long? You don’t have to sit on ...

When Apple Inc. introduced its new MacBooks recently, it touted a doubled battery life — but noted that the laptops’ batteries were sealed into the case, not user-swappable as is the norm with laptops ...

From smartphones to laptops to even styluses like the Apple Pencil, many devices rely on lithium-ion batteries. These batteries have become increasingly popular in recent years due to their slim ...