Introduction: This series storage battery testers are used for activated style leadacid storage battery. Precise circuit and strong digital processing unit make it complete collection of a series of complicated data and figure out every test data, which availably by 4-wire Kelvin test connection. Besides it strengthens input protection inside , in order to prevent such situations as polar reversal connection, over-high voltage input, poor contact of the test clamps and so on. That makes sure safer and more convenient when testing. This tester is the best tool for battery sales, vehicle repair and condition check of all kinds of lead-acid batteries that used in equipment system associated with lead-acid battery. Features: Conforms to CAT III 600V With large LCD display, easy to read the value Fully diagnose the battery status and car charging system Battery test: cold cranking amps, battery resistance, voltage, life analysis Engine system test: the change of battery system with the process of startup Charging system test: the charging system working state of the output Maximum load system test: the maximum load state of battery Rich Parameters measured and displayed for battery condition diagnose Overload protection and wrong connection protection keeps operator always safe Easily read out conclusion of battery condition good/OK/pay attention/replace Loose lead detection, unit conversion CCA/IEC/EN/DIN Specifications: DIY Supplies: Electrical Type: Vehicle Battery Tester Material Type: Metal and plastic Battery voltage: 12V Language optional: English Battery internal resistance: 0-99mΩ Battery range: 100-1700CCA Battery range1: 3AH~250AH Battery status of health: 0~100% Battery type: Lead-acid battery Test voltage: DC 9~18V Weight: 400g Dimensions(L*W*H): 18*9*5mm Maximum load test: on car Battery conclusion: Good/OK/Attentionn/Replace Ah input quick test: yes Battery ststus of health(SOH): yes Charging system test: yes Loose lead detection: yes Wrong connection protection: yes Overload detection: yes Star-up load test: yes The package: 1 x Car battery tester 1 x Pair test leads