Universal Battery Power Detector

Key Features: • Accurate digital voltage measurement for multiple battery types • LCD display with color-coded bar graph for quick diagnostics • Supports AA, AAA, C, D, N, 9V, 1.5V button cells, and more • No power needed—operates directly from the battery being tested • Lightweight and portable (only 50g, fits in your pocket) • Durable ABS plastic and stainless steel construction • Ideal for professionals, DIYers, and households