Car Battery Tester 6V 12V 24V Battery Voltage Tester, BR550 100-2000 CCA 2Ah-220Ah Internal Resistance Tester Automotive Alternator Digital Battery Analyzer for Car Truck Marine Motorcycle SUV Boat

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• Question : What types of batteries can be tested with BR550?
  Answer : BR550 can test all 6V/12V/24V 100-2000CCA batteries including regular flooded, AGM flat plate, AGM spiral, or gel batteries.
• Question : What kind of data does the tester display?
  Answer : The tester displays internal resistance, voltage, status of charge (SOC), status of healthy (SOH), and CCA value test results.
• Question : Is it safe to use BR550 if the positive and negative poles are reversed?
  Answer : Yes, BR550 is designed with polarity reverse connection protection which prevents harm to the device, car or battery.
• Question : If I have a deep cycle marine battery without a CCA value, can I test it using this device?
  Answer : No, you cannot. This device requires a CCA value to test a battery. After testing four deep cycle marine batteries, the values returned did not match the readings from the battery converter or charger. Therefore, it is not recommended to use this device for batteries without a CCA value.
• Question : Have you tested a deep cycle marine battery without a CCA value using this device?
  Answer : Yes, and the values returned did not match the readings from the battery converter or charger. Therefore, it is not recommended to use this device for batteries without a CCA value.
• Question : Is this device a waste of money?
  Answer : In the case of testing batteries without a CCA value, it may be considered a waste of money as it cannot provide accurate readings. However, it can still be useful for testing batteries with a CCA value.