The Triplett Chek-A-Cell is a reliable multi-battery tester with a large, bright LED display. It can load test a variety of batteries from Li-Ion, NiMH, NiCad, and Sealed Lead Acid. This high resolution tester can display differences in voltage from 0.01 volts and provides high accuracy of /- 0.03. The Chek-A-Cell is well suited for a variety of industrial and residential applications such as security, electrical, HVAC installations and more!