Features:  *1. Test batteries to IN/OUT of the vehicle accurate results in milliseconds, analysis result with Good or Replace. Applicable to all automotive crank lead-acid batteries, including ordinary lead-acid batteries, AGM flat batteries, AGM spiral batteries, EFB and gel batteries, etc. based on CA, CCA, BCI, MCA, JIS, SAE, EN, DIN and IECS Standards.   *2. Vehicle cranking system test, cranking time, voltage and status; Vehicle charging system test load voltage, unloaded voltage, ripple status and charging system status.  *3. Battery Recharge: One 12V 4Ah-100Ah car battery can be charged full power within 12 hours.  *4. Battery Repair: Restore the capacity of the battery by repairing the car battery, extend the service life of the battery, and improve the performance of the battery.  *5. 8 languages are supported, English, German, French, Dutch, Russian, Spanish, Italian, and Portuguese; Free system upgrade and printing.    KONNWEI KW510 battery tester & charger & repair is the newest battery tester upgraded from the black white screen tester, in order to check battery health faster and more accurate, including check the alternator working status. Not only support Battery Health Test, but also Battery Cranking Test, Battery Charging Test.    It's a professional automotive diagnostic tools for your battery issues by the graphing voltage monitoring tool,   with its 2.4 inch color screen and unique pattern design, the KONNWEI KW510 is a perfect battery testing tool   for you.    KW510 can support Car Battery Tester + Charger + Repair 3in1 function.    KW510 Car Battery Charger Advantages:    Work for 12V lead acid batteries.  Imported STM32103VCT6 Chip.  Graphical battery test results.  Test results storage and review.  Support 8 Languages: English, French, German, Dutch, Spanish, Portuguese, Russian and Italian   KW510 Car Battery Tester Application:  All 12V lead-acid battery of gasoline, diesel, hybrid electric cars and emergency batteries.    Car Battery Standard:  CCA:100-2000  BCI:100-2000    CA:100-2000  MCA:100-2000  JIS:26A17-245H52  DIN:100-1400  IEC:100-1400    EN:100-2000  SAE:100-2000    KW510 Battery Charger Car Package List:  1 x KW510 Battery Charger;  1 x Charging Cable;   1 x Color Box;   1 x User Manual