Maximum capacity tool battery

What are the best power tool batteries in 2025?

I tested dozens of power tool batteries throughout 2025 and found eight brands that stand out in durability, efficiency, and overall lifespan. These companies have made their battery technology better to give you reliable power even in tough conditions. 1. DeWalt – Best for durability and jobsite use

How do you choose a good battery for a tool?

The right battery capacity matched to your tool matters—using smaller batteries (like 2.0Ah or 4.0Ah) for high-powered tools can shorten the battery’s life from too much strain. Voltage requirements play a key role too. The voltage sets your tool’s power level—higher voltage batteries give more power for tough jobs, though they weigh more.

How many Ah does a power tool battery have?

For many major power tool brands, there are normally several tiers of Ah rating for just a single battery type. For instance, Ryobi's 18V ONE+ battery comes in 1.5Ah, 2Ah, 4Ah, 6Ah, 8Ah, and 12Ah variants. Meanwhile, DeWalt's 20V MAX* XR POWERPACK includes a 4Ah and 8Ah model.

How do I choose the right battery capacity for my cordless tool?

To choose the right battery capacity for your cordless tool, consider the power and run time needed for your projects. Battery capacity is measured in amp-hours (Ah), and a higher capacity means longer run times. Consider your project’s size and intensity when selecting a battery with the appropriate capacity.