Schumacher SEC-100 Battery Analyzer Utilizes state-of-the-art electronic battery test technology to quickly, accurately and safely evaluate the condition of lead-acid starting batteries An easy-to-read digital display and user prompts ensure simple and accurate operation Field proven, high-quality design for long life Research based diagnostic algorithm provides accurate assessment of the battery and recommended action to the user CCA Range 200-1200/operating Voltage range 8 to 16 Volts