
Testing a 9V rectangular with the MAJOR TECH MT235 Battery Tester is straightforward. First, identify the battery's polarity; the positive terminal is usually marked with a plus sign (+), and the negative with a minus sign (-). Next, ensure the battery selector on the MT235 is set to the 9V position. Then, align the battery terminals with the corresponding contacts on the tester, the positive (+) and negative (-) terminals of the 9V battery should connect with the positive and negative contact points on the tester. Finally, observe the LCD display for the voltage reading, which indicates the battery's condition. Consult the MT235's manual for voltage ranges to determine if your 9V battery is in good condition.


