Product Overview: Ensure your batteries are in top condition with the Universal Battery Voltage Tester. This handy tool features a digital display for quick and accurate readings, allowing you to test a wide range of battery types, including AA, AAA, C, D, 9V, and 1.5V button cells. Its portable design and easy-to-read color-coded scale make it an essential gadget for every household. Key Features: Quick Battery Testing: Test the condition of your batteries in seconds, helping you decide which ones to keep and which to discard. Digital Display: Clear and easy-to-read digital display shows the battery voltage and power level. Versatile Testing: Designed to test various battery sizes with one unit, including 9V batteries, 1.5V button batteries, and 1.5V ordinary or rechargeable batteries (AA, AAA, C, D). Portable and Lightweight: Compact handheld design makes it easy to carry and store. Movable Arm: Features a movable arm to securely hold batteries of different sizes during testing. Easy-to-Read Scale: Color-coded scale provides a visual indication of the battery's power level for quick reference. Specifications: Color: Black Battery Types Tested: AA, AAA, C, D, 9V, 1.5V button batteries Display: Digital Dimensions: Small and portable for handheld use Package Includes: 1 x Battery Tester Ideal For: Home Use: Perfect for quickly checking the condition of household batteries. Professional Use: Suitable for technicians and engineers needing a reliable battery tester. On-the-Go: Compact design makes it easy to bring along when traveling or working in the field. Friendly Tips: Manual Measurement: Please allow a 1-3cm deviation due to manual measurement. Color Variation: There may be slight differences in color between the picture and the actual item due to lighting conditions. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.