Ryobi's 18V system uses interchangeable lithium batteries that can power tools both small and large. Here's six devices worth ...

A manufacturing defect in the vehicles' 12-volt batteries can cause them to stall at low speeds, or not restart after ...

However, most of us can't stay tethered to a wall outlet. Thankfully, you don't have to. The battery market is packed with options that can boost your phone's battery life no matter where you are.