The ZTS Multi-Battery Tester is a great way of testing your batteries and can test over 30 types! This microprocessor-controlled instrument is designed to test both non-rechargeable and rechargeable batteries using its patented high accuracy pulse load test. After a fully automatic cycle, the remaining battery life is shown on an LED display. Battery types are clearly labeled next to the appropriate contacts, test results are easy to understand, and there are no extra switches or settings that you have to fumble with, making this tester a great asset.