MASTFUYI FY8912A Car Battery System Tester 12V 24V Car Motorcycle Truck System Analyzer 50-2000CCA Charging Cranking Test Tool Item Description Model Number:FY8912A Type:Vehicle Battery Tester DIY Supplies:ELECTRICAL Brand Name:Mastfuyi Origin:Mainland China Certification:CE,FCC Function: It can detect various battery data, including internal resistance, voltage, discharge current, battery power, battery lifesapn, versatile and practical to use. Model specifications and parameters: Battery Specifications:12V/24V(lead-acid storage batteries,not to be used for lithium battery testing). Voltage range:8V-36V. Scope of application:All kinds of car, motorcycle, electric car,forklift and other vehicle batteries. Testing process: Step 1:After powering on and the display is on, first enter P1 state,use up and down keys to select the battery type,there are four categories to choose from:normal/AGM/GEL/EFB,after selecting, press the confirmation key(OK) to enter the next state. Step 2:enter P2 state,use the up and down keys to select the test standard, there are six categories to choose from:CCA(Cold start current)/DIN(German standard)/EN(European Standard)/SAE(American standard)/IEC(International electrotechnical code)/AH(Starting current),after selecting,press the confirmation key(OK) to enter the next state. step 3:enter the P3 state with up and down keys to adjust the maximum discharge current of the battery under test(long press can continuously adjust the size of the set value up and down),after setting,press OK to enter the P4 measurement state. Step 4:enter the P4 measurement state, about 2-3 seconds into the display of the measurement results state, use the up and down keys to select the results of the data to be observed,respectively,internal resistance/voltage/discharge,and there will be a corresponding battery life and power data is displayed. The tester will give judgment according to the measurement results: excellent/good/poor/replacement/charging and retesting to determine the state of the battery. Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.