CMU School of Drama


Tuesday, January 05, 2016

Voltage vs Amp Hours: What's the Relationship?

Pro Tool Reviews: Maybe you just want to know more or see if your notions about voltage vs. amp hours are right. Maybe you’re brand new to cordless tools and don’t know where to start. Glad you could make it to the party!

Voltage vs. amp hours is one of the most basic questions asked of cordless tools. It can be confusing. With corded tools, we often describe the amount of power based on the number of amps that it draws. This is great when there’s a virtually infinite power supply. Most people boil cordless tool numbers down to the idea that voltage is equivalent to power and amp hours are equivalent to run time.

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