Powerchecker™ delivers a reliable way to test the state of charge or power for over 40 battery types. Designed for commercial and home use, this microprocessor-controlled device uses a patented pulse load test to accurately assess both primary (non-rechargeable) and rechargeable batteries. Results are displayed on an intuitive LED bar graph, with battery types clearly labeled for easy selection. The negative test lead conveniently stores in a side seam, making it ready to use at any time.