Extensive Battery Compatibility: Supports 9V, N, D, C, AA, AAA, and button cell batteries for versatile household use. LCD Display: Clear digital screen shows accurate battery power levels for easy reading. Compact & Portable: Lightweight and easy to carry, making it perfect for home and travel use. No External Power Needed: Operates without batteries—simply insert the battery to test its charge. Durable & Reliable: Made with high-quality materials for long-lasting performance. Essential Household Tool: Helps determine battery life, reducing waste and ensuring you always have working batteries. Important:Remove the battery if not in use for an extended period. Dispose of it properly according to local regulations for hazardous materials. Notice： Inspect the battery surface for damage or foreign objects before testing, and ensure the contact points are clean to maintain testing accuracy. Check battery polarity: When connecting the battery, ensure correct polarity alignment. Most batteries have clear positive and negative markings—match them accordingly with the tester’s terminals. Package Includes: 1 * Universal Battery tester1* packing box
