Universal Battery Checker Tester for AA, AAA, C, D, 9V, and Button Cells Checks power level of all 1.5V and 9V batteries Easy-to-read, color-coded meter indicates battery power level Tests 1.5V miniature cells (AA, AAA, C, D) and 9V batteries Three clear results: red = replace, yellow = low power, green = good No external power supply required Quickly determines battery charge status Compact and portable design Measures 1.5V AA, AAA, C, D batteries and 9V square batteries Analog pointer directly displays measurement results Color-coded indicator: Red (REPLACE): Battery is depleted and should be replaced or recharged Yellow (LOW): Battery has low remaining capacity; may still power some devices Green (GOOD): Battery has sufficient charge Color: Black Material: Plastic How to Use: 1. For 9V batteries: Connect directly to the two test terminals on the side, observing correct polarity 2. For 1.5V batteries (AA, AAA, C, D): Open the test arm at the top, insert the battery with correct polarity Package Includes: 1 × Battery Tester (batteries not included) Note: Slight variations in appearance or printed text may occur between batches — does not affect functionality Note: Color representation may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3mm.