Lithium-ion batteries’ ability to deliver a lot of power from a small package have made them the go-to for makers and ...

Apple's battery guide describes lithium-ion batteries as "consumable components" that naturally lose capacity over time. To slow that decline, iPhones use Optimized Battery Charging, which learns your ...

My computer’s clock resets every time I turn it on. A: Your computer hasn't run out of time, but a small backup battery on its motherboard has run out of a charge. That battery — often called the ...