LCD Digital Battery Tester, Portable Capacity Detector Check AA AAA 9V & 1.5V Button Cell Capacitance Diagnostic Tool

This universal digital battery tester with HD LCD display delivers precise real-time voltage and capacity diagnosis for most household batteries, compatible with AA, AAA, 9V block and 1.5V button cells like CR2032, LR44. No extra built-in battery is needed; it draws power directly from the tested cell, ready for instant detection anytime. The large clear LCD screen eliminates blurry analog scales, showing accurate capacitance data to judge battery health: fully charged, low power or exhausted, helping you sort usable batteries and cut waste. Made of sturdy insulating ABS plastic, the compact lightweight body fits drawers, tool bags and carry-on kits for home, office, electronics repair and DIY hobby use. Multi-position elastic metal contacts firmly hold different battery sizes without loose contact. Simply place the battery into the matching slot to get instant readings within one second, ideal for remote controls, clocks, toys, cameras and medical devices relying on small batteries. Simple operation without complex settings, a practical essential tool for daily battery management and quick power inspection.