Various power tool lithium batteries

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.

What are power tool batteries?

Power tool batteries have come a long way from bulky nickel-cadmium (NiCd) packs. Today, lithium-ion (Li-ion) technology dominates the market, offering greater power, longer runtimes, and lighter weights. This guide dives into the world of power tool batteries, exploring different chemistries, voltage platforms, amp-ho

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

Which chemistry is best for power tool batteries?

However, they had a higher self-discharge rate and were susceptible to damage from overcharging and overheating. Lithium-ion (Li-ion): Li-ion is the dominant chemistry for power tool batteries today. They offer the highest energy density, allowing for lighter and more powerful tools.