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Amazon: JDiag BT-200 Car Load Battery Tester 12V 100-2000 CCA 220AH Digital Battery Analyzer

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One thought on “Amazon: JDiag BT-200 Car Load Battery Tester 12V 100-2000 CCA 220AH Digital Battery Analyzer

  1. Mike Rains

    Bought this. It worked twice and then went completely dead (no display). Like other digital battery analyzers it uses a four wire bridge circuit to measure battery internal resistance. It was a real bargain at $22.79 but it did not survive long. I returned it for a refund. Maybe I just got the one in a hundred that fail prematurely but I will not try again. Also, the instructions are next to useless and are in very poor English. If you are not familiar with this type of instrument you can find more information about this battery testing methodology and proper measurement techniques on YouTube.