Bought speed stirrer, it doesn’t even turn on


Well-known member
Jun 4, 2016
Portland OR metro
I bought a speed stirrer in March when I bought my test kit, but never used it because I never had a need to.

Now I am SLAMing for the first time, and tried to use my speed stirrer. Nothing happens. No lights, no power, no nothing. I tried changing the batteries, nothing.

Am I doing something wrong? Or is it defective?


Gold Supporter
Jul 24, 2020
Middletown, Pennsylvania
I had some issues with my speed stir when I first got one. It did not work when I installed the batteries, so I changed the batteries, still didn't work. I took a small piece of scotchbright and cleaned the terminals and then it worked. They must get a little corrosion on the battery terminals during storage and shipping.

I would try cleaning the battery terminals with something lightly abrasive.

BTW, once you use the speed stir, you will not want to do a test without one.