- Universal Button Battery Tester Checker AA, AAA Cd 9V Do not for Guess which Maintenance Batteries and What to Throw, fold between two battery battery tester, and easy to read display will tell you immediately if you have dud,or if you can eke out another few minutes of battery life.
- Power level controls for all 1.5V and 9V batteries
- Easy to read, color coded meter indicates power leveltests 1.5V miniature cells
- Three result: red = replace, yellow = low power, green = goodIf no needle moves, check if the battery is touching both contact before assuming it is completely dead.
- Accuracy:1.5 V miniature cells
- Checks the power level:all 1.5 V & 9 V batteries
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