High voltage in a power tool translates to higher torque. Torquemakes it easier for you to use greater force without putting as much strain on the battery. When you're using shears or any other power tool that needs plenty of torque, you'll need a higher voltage to get the job done. Contrary to popular belief, bigger doesn't always mean better. There's no need to spend more money and charge a battery more often if you don't need to. Without further ado, here are the pros and cons of both choices: If you don't know all of the terms used with electricity and power tools, then it's time to learn the basics. Battery-powered toolsused to not be nearly as powerful and reliable as they are these days. Fortunately, many advancements have made them equally as useful as their corded counterparts. The only tether of a cordless tool is the battery. Follow these three.