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I'm trying to test some 18v batteries. Need to know which holes to put leads into and where to set the knob.

Don't tell me to GTS. I'd rather get human advice.

I'm trying to test some 18v batteries. Need to know which holes to put leads into and where to set the knob. Don't tell me to GTS. I'd rather get human advice. [Link Title](https://pic8.co/sh/HK6sUW.jpg)

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You could move the dial to V and then test against a AA battery. It should read around 1.4V. Put the red + wire on the battery positive terminal and the black COM wire on the negative terminal. Once you get it working with a AA battery, move on to the 18V. Fully charged should read like 20V. Good luck, we're all rooting for you!