DIY Power Bank Converts Cordless Tool Batteries into Portable EV Charging for Emergencies
A new DIY guide outlines how to repurpose common cordless tool batteries into a portable power bank. This innovative solution offers a convenient way for EV owners to access emergency power, leveraging existing battery packs for charging electric bicycles, scooters, or even adding a small range boost to an electric car in a pinch.
September 24, 2026Popular Mechanics