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Cordless Tool Batteries Buying Guide

Cordless drill batteries have varying run times and capacities, but how do amp hour (AH) ratings factor into choosing the best battery? This guide will provide you with the information you need to purchase cordless batteries based on need for power and run time.

Power and Run Times

Volts and amp hours are both numbers to be aware of when deciding on a cordless drill battery for Ryobi P108, but the two terms describe very different measures.

• Volts is the best measurement of tool power. It describes the amount of power a battery can deliver at a given time. The higher the voltage, the more powerful your tool.
• Amp hours measures the run time of the battery. The amp hour rating can best be described as the 'fuel tank' of the battery. The higher the value, the larger the 'fuel tank'. It means you can run your cordless power tool longer on a single charge.
• Several components of the power tool affect how efficiently it can transfer the power from the attached battery and how long it will run on a single charge. Consider your project needs when selecting the correct battery for the task at hand.

Battery Types

The two main battery types are nickel-cadmium and lithium-ion. Each has its own advantages depending on the type of project you are going to complete.

• NiCd batteries are the oldest rechargeable Dewalt DCB184 battery design and have a long history of being tough, inexpensive and performing well under extreme weather conditions.
• Lithium-ion batteries are the newest technology in rechargeable batteries and are generally considered the best choice in battery types, outperforming in all areas. Lighter and smaller than a NiCd battery of the same voltage, lithium-ion can also hold a charge for several months between uses.

Knowing your power and run time needs as they apply to the project at hand is imperative to choosing an appropriate battery platform.

Understanding Battery Charge

Dyson V8 Animal battery capacity is an important part of choosing the right tool for your project. There is nothing more frustrating than trying to complete a job with a battery that runs out on when you need it most.

• 2.9 AH or less: Quick tasks
• 3.0 - 6.0 AH: DIY projects
• 9.0 AH or greater: Remodels and builds