Dewalt recently unveiled a comprehensive update to its 20V Max XR cordless tool system, including a new generation of batteries and a wider range of options.

This review focuses on three key models: the Compact PowerStack (5Ah), the PowerPack 8Ah, and the standard PowerPack (8Ah).

We’ll delve into their battery technology, charge capacity, and ideal applications, providing a clear comparison to help you select the right battery for your toolkit.

The Compact PowerStack, utilizing stacked pouch cells, prioritizes portability and is ideal for lighter-duty tools like ratchets and smaller drills.

It’s a great choice when size and weight are paramount.

The PowerPack 8Ah, featuring tabless 21700 cylindrical cells, delivers enhanced power and extended runtime, making it suitable for demanding tasks such as circular saws and longer grinding sessions.

This battery also boasts improved thermal management due to the tabless cell design.

Finally, the standard PowerPack 8Ah offers a balanced approach, providing solid performance across a range of tools.

Our testing revealed that the PowerPack 8Ah consistently outperformed the Compact PowerStack in sustained high-drain applications.

While the tabless technology of the PowerPack 8Ah comes with a higher price point, the benefits of increased power and longevity are significant.

Ultimately, the best Dewalt XR battery depends on your specific needs and priorities – whether it’s minimizing weight, maximizing runtime, or achieving a balanced combination of performance and ergonomics.

For those seeking the most cost-effective solution, Dewalt’s non-XR 20V Max batteries remain a viable alternative, although with some performance compromises compared to the XR line.