Best Compact Cordless Tool Battery Packs of 2025

The DEWALT 20V MAX Battery, Compact 2.0Ah Double Pack provides up to 33% more capacity than standard 20V MAX* battery packs, with no memory and virtually no self-discharge, ensuring maximum productivity and less downtime. The 3-LED fuel gauge system allows users to have immediate feedback on the state of charge, while the lightweight design of the individual pack weights (1.0 lbs) offers maximum run-time with comfort.

The DEWALT 20V MAX Battery is a lithium-ion battery pack that provides extended run-time and battery life. With a quick 30-minute charge time, no memory, and virtually no self-discharge, it ensures maximum productivity and less downtime. Its lightweight design of only 0.77 pounds allows for prolonged use with less user fatigue. This battery pack is recommended for power tool use, and it comes with a 3-year limited warranty.

The Milwaukee M12 REDLITHIUM Battery provides fade-free power, extreme temperature performance, overload protection, M12 compatibility, and compact size. It can run as though it were fully charged even when the battery is at 2%. It can function below 0 Degrees Fahrenheit (-18 Degrees Celsius). It is compatible with the M12 line of 12V Milwaukee tools, powering sub-compact circular saws and 12V LED area lights. The battery has Redlink intelligence that prevents overheating and damage from overload. The compact size makes it 65% lighter and 50% smaller than compact NiCad batteries.

The DEWALT 20V MAX Battery Pack includes two XR and two compact batteries that are compatible with all DEWALT 20V MAX tools and chargers. The batteries feature fuel gauge LED charge indicators, allowing you to easily monitor the battery level. With a 3-Year Limited Warranty, this battery pack provides a full range of applications for your cordless tools.

The Milwaukee M18 18v REDLITHIUM 2.0 Compact Battery Pack features REDLINK Intelligence to provide optimized performance and overload protection. The fuel gauge onboard displays remaining runtime for less downtime on the job. It powers more than 40 Milwaukee M18 cordless power tools and offers long-lasting performance and durability with all-weather performance. It comes in easy-to-open bulk packaging to save money.

Upgrade your power tools with the 20V MAX* DEWALT® POWERSTACK™ Compact Battery 2-Pack. These batteries provide 50% more power in a 25% more compact design, and are designed to resist wear-and-tear with an impact-resistant, overmolded base. With twice the lifetime of standard cylindrical cells, these batteries also feature an LED fuel gauge to avoid unplanned work stoppages. Compatible with all DEWALT 20V MAX* tools and chargers, this lithium-ion solution is the perfect upgrade for any power tool user.

The DEWALT Compact Battery is a powerful and durable cordless tool battery pack that is designed to provide 50% more power in a 25% more compact size. Its overmolded base offers excellent impact resistance, making it resistant to wear-and-tear. With a battery life that is 2X longer than other batteries, this DEWALT battery ensures that you can work for extended periods without interruptions. The LED fuel gauge displays the state-of-charge, allowing you to avoid unplanned work stoppages. Compatible with all DEWALT 20V MAX* tools and chargers, this battery is a versatile and convenient option for any DIY enthusiast or professional.

The Milwaukee M18 Battery offers impressive performance with up to twice the runtime and recharges compared to standard lithium-ion batteries. This means you can work longer without interruptions, making it ideal for heavy-duty tasks. With 2.0 amp hours, it runs cooler and is designed to operate in extreme temperatures, ensuring reliability in any climate. Its compact and lightweight design allows you to maneuver in tight spaces easily, reducing fatigue during use. Additionally, the battery is equipped with advanced protection features to safeguard your tools from overload and cell damage, enhancing their longevity.

The Ryobi ONE+ 18V Lithium-ion 4Ah battery is designed to provide you with up to 3X more runtime compared to a standard 1.5Ah lithium-ion battery. With professional grade lithium-ion cells, it delivers fade-free, cord-like power and performs well in extreme weather conditions. The compact and lightweight design makes it easy to handle, and the integrated LED fuel gauge allows you to monitor the remaining runtime. It is compatible with over 225 18V ONE+ tools, making it a versatile addition to your collection.

The Milwaukee REDLITHIUM Battery is equipped with REDLINK Intelligence for optimized performance and overload protection. It offers the power of an XC battery in a compact size, making it convenient for various tasks. The best-in-class construction ensures increased protection against oils, greases, and solvents, enhancing durability. With total system communication between tool, battery, and charger, this battery pack delivers efficient power for cordless tools, providing users with reliable performance for their projects.