Battery Tester for AA AAA C D 9V & Household Batteries Battery Checker

Essential Battery Testing Tool - This reliable battery tester helps eliminate guesswork by providing precise voltage readings and power level indicators. The clear LCD display shows exact battery health status, letting you quickly identify which batteries need replacement.
Versatile Multi-Battery Design - Expertly tests virtually all common battery types with dedicated testing slots. Compatible with AA, AAA, AAAA, C, D, N, 9V, and various button cell batteries including CR1616, CR1632, CR2016, CR2025, CR2032, CR2450, CR3032, LR44, LR43LR41. and CR2CR123A. Uniquely tests 1.2V rechargeable AA, AAA, and AAAA batteries. The smart detection system prevents incorrect testing.
This battery tester features real-load testing:
AA/AAA/AAAA/C/D: Discharge resistor 2075// 1.2V rechargeable batteries: Discharge
resistor 3040//CR2/CR123A: Discharge
resistor 30100//LR44 button cells: Discharge
resistor 1K 1.5 //CR2032: Discharge resistor 1K3//9V batteries: Discharge resistor 1K9
Clear Power Level Display - Features an easy-to-read LCD screen showing exact voltage plus a colored power indicator bar displaying Good, Weak, or Poor status. No more uncertainty about remaining battery life - get instant, accurate results every time.
Portable Convenience - The thoughtfully designed compact size ( 4.7 x 2.8 inches) fits easily in drawers, tool boxes, or bags. Requires one AAA battery for operation (not included) with low power warning indicator to ensure reliable operation when you need it.
Durable Construction - Built with high-quality materials and precise engineering for long-lasting performance. The sturdy test slots and spring-loaded contacts provide consistent readings while protecting batteries during testing. Patent pending1-year warranty
Automatic power-on triggered when the battery voltage exceeds 0.7V 3-second auto-shutoff (non-operational)Please note that a battery storage case is not providedAccuracy: ±(1% of reading + 0.02V )Standby time: approximately 1 year (powered by AAA batteries). The screen is not backlitNo special maintenance required. Lithium battery testing is not supportedOperating temperature range: -10°C to 45°CUltra-Fast
Reading: 0.1 second. Test result