Cordless Power Tool Batteries: Widely used in drills, saws, and impact tools. 

The widespread adoption of cordless power tools has been made possible by significant advancements in battery technology. These batteries are the heart of the tool, providing the power and portability that sets them apart from their corded counterparts. They are designed to withstand the high-current demands of applications like drilling, cutting, and fastening. The market for these batteries is expanding rapidly, driven by the convenience they offer to both professionals and DIY enthusiasts. The transition from older battery chemistries like Nickel-Cadmium (NiCd) and Nickel-Metal Hydride (NiMH) to modern lithium-ion batteries has been a game-changer, improving tool performance and user experience.

The key considerations for cordless power tool batteries are their voltage, which determines the tool's power, and their amp-hour (Ah) rating, which determines how long the battery can run. Manufacturers are continuously innovating to increase both of these metrics, while also making the batteries lighter and more compact. The market is also seeing a rise in battery platforms, where a single battery can power a wide range of tools from the same brand, offering greater convenience and reducing cost for the end user.