Universal Battery Checker Tester for AA, AAA, C, D, 9V, and Button Cell Batteries Tests power level of all 1.5V and 9V batteries Easy-to-read, color-coded meter indicates battery status: red = replace, yellow = low power, green = good No external power supply required – quickly determines battery charge level Compact and portable design Tests 1.5V miniature cells and 9V square batteries Pointer display shows results directly Color indicators: - Red (REPLACE): Battery is depleted and needs replacement or recharge - Yellow (LOW): Battery has low power but may still operate some devices - Green (GOOD): Battery has sufficient power Color: Black Material: Plastic Usage instructions: 1. For 9V batteries: Connect directly to the two test holes on the side, observing correct polarity 2. For 1.5V and AAA batteries: Open the test arm at the top, insert the battery with correct polarity Standard configuration: Tester only (no battery required) Note: Product appearance and printed text may vary slightly between batches, but this does not affect functionality Package Contents: 1 x Battery Tester Lighting and monitor differences may cause slight color variations between the image and the actual item Measurement error allowance: +/- 1-3 cm