Automobile Battery Tester Battery Capacity Tester Tester Battery Tester Features: Test and analyze battery load system, indicating battery condition include Battery Life Percentage, CCA , Battery Voltage,Battery Resistance in case of any unexpected shutdown. Continuous test with battery power, no damage to battery, and the reverse polarity and over voltage protection make it to be ultra safe. Complete wide CCA test range (100-1700), offer reliable and accurate operation for more sized batteries. Great Compatible with most 12 volt battery type(include Flood battery, AGM battery, Gel battery, Deep Cycle Battery), work fast and precisely. Come with large LED screen and heavy duty clamp, and beep remind function make it to be more durable and reliable. Specification: A300 Battery Tester Test Objecrt:12V Battery Input voltage: DC 12V Test Item: Voltage, resistance, CCA, battery condition. Wide Operating Range : CCA:100-1700 DIN:100-1000 IEC:100-1000 En:100-1700 Battery Life Percentage : 80% - 100% Good Condition 60% - 80% OK, Not Bad 40% - 60% Need Attention 0% - 40% Bad,Need To Exchange Requied Material: plastic Size: 12.5 x 6.5 x 3cm / 4.92 x 2.55 x 1.18inch Package Content: 1 X Battery Tester 1 x instruction