This is crucial to know before you find out too late. I'm no electrician but I know a thing or two here and there. So let's keep it short and simple. This is USA power based only.

Your power outlet in your wall can manage up to 15 Amps (Amperage) at once. Of course, your residents can handle a lot more but that's the limit. If you go over it you will blow a fuse.

This is how Christmas trees could burn down in old movies like The Christmas Story. However, we have house breakers to stop the power from doing this these days.

How to Manage Power Tools

If you have a nice system with a bunch of items you leave plugged in often, they do not use Amperage when they are off. It only matters when they are running. This, of course, has nothing at all to do with battery-powered tools!

If you take a Miter saw it generally runs at 6 Amps. While that spinning it will take up 1/3 of a socket's amperage. This means if you have an outlet spreader like ones used for a computer then you will be imposed on the 15 Amp limit. Otherwise, you can use a different socket!

Your corded power tools will say the Amps on them, on a label somewhere. The easiest thing to do is unplug what you aren't using not only for this reason but a better reason is for safety.

Breaker Case

If you are using a Shop-Vac at 5 Amps while you run your Miter Saw at 6 Amps you are just fine. Yet, if you have a buddy overusing a sander from the same outlet that uses 5 Amps you are now using 16 Amps on a 15 Amp outlet.

What will happen? They will shut off. How do you fix it? There are two things to check. Let's see shall we?

Check the Outlet First

  • First, turn off the tools (So when power returns they don't run).
  • Second, on your wall outlet, you may or may not have a "Reset" button. If you do push it well and wait about 15 seconds.
  • Last, test the Second step and plug in a power tool again to see if the electricity is back.

Check the House Breaker

  • Otherwise, head over to your house breaker. This is a gray box likely in your garage with a bunch of switches. Don't get weird, this is normal. If you do not see a switch that is halfway (between on/off), or off, it's fine to locate the room that had the issue and flip it on and off.
  • First, look at any switch that is in the middle position. That means the fuse was hit with too much power. Just turn it off a moment, and then back on. Wait about 30 seconds to one minute.
  • Last, attempt to start a power tool. If it still doesn't work, try resetting the outlet after having done the above, and test a tool again.

Still, Failing?

  • It's time to give up. Just kidding.
  • You likely have an additional outlet in the same room (your garage) with a reset button on the outlet that you may not even be using. Go ahead and reset it with the button that needs to be pressed. That will fix it but rarely needs to happen.

It's 100% Fine to Spread Power

Remember, power is limited per outlet. Most outlets have two inputs, which means a complete outlet could use 30 Amps. You will most likely spread your power out with some type of power cord with several inputs, it's perfectly fine.

Knowing these simple facts helps if you are aware of them. This way you don't think you destroyed your man cave.

I'll end by saying you can add more amperage to outlets but this requires rewiring to reduce the Ohm resistance. I wouldn't bother!