Why do battery operated things usually “slow down” before the battery fully runs out?

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What is it about electricity which causes this? Why can’t a device draw full power until the battery is dead?

In: Physics

5 Answers

Anonymous 0 Comments

I can not answer your question, but I can say that this can be built around so that they do not slow down. I worked in construction most of my life, and we started using cordless drills and cordless screw guns at some point. For these commercial grade tools, you will get full power until they just completely stop. You may get like a 10-second slow-down feeling, but that is it. It doesn’t apply to all the brands, but most of the good brands I would get full power until shutdown. I am guessing that they have some kind of circuit that simply shuts them down at any noticeable change in charge.

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