Universal Battery Checker / Tester — AA, AAA, C, D, 9V & 1.5V button cells Why you need this Quickly identifies remaining battery power so you replace only weak cells, avoid unexpected device failures, and save money by not discarding still-usable batteries. Color-coded meter provides an immediate visual indication of charge level, making it easy to decide whether a battery is good, low, or needs replacement. Simple to use — no setup or technical skill required. Good for home, workshop, office, and travel. Key features and functions Colour-coded meter: clear, easy-to-read visual indicator that shows the battery’s power level at a glance. Tests 1.5V miniature cells and checks all common household batteries: AA, AAA, C, D (1.5V) and 9V. Also suitable for testing button cells and other 1.5V miniature batteries listed above. Universal compatibility: one tester covers the most common battery sizes you use every day. How it solves common problems Prevents unexpected device downtime by confirming battery condition before use (remotes, toys, wireless devices). Saves money and reduces waste by identifying batteries that still have usable life. Makes maintenance simple — quickly verify batteries in emergency devices (flashlights, smoke alarms) and replace only when necessary. Practical use scenarios Home: Check AA/AAA batteries in remotes, wireless keyboards, toys, and TV/game controllers before guests arrive or long trips. Safety devices: Verify 9V batteries in smoke alarms and carbon monoxide detectors to ensure reliable operation. Travel and gear prep: Test flashlights, radios, and camera batteries before a trip or outdoor activity to avoid failures when you need them. What it does (clear, reliable performance) Provides a direct indication of battery power using a color-coded meter. Compatible with all standard 1.5V cells and 9V batteries, including button cells noted as 1.5V miniature cells. Designed for easy, fast checks so you can quickly confirm battery condition and act accordingly. Contents and compatibility note Tester supports AA, AAA, C, D (all 1.5V cells), 9V batteries, and 1.5V miniature/button cells as described. Use as a diagnostic tool to check remaining charge level only. Simple, practical, and dependable — an essential tool for keeping household and portable devices powered and ready.