TOPDON BT300P 12V 24V Car Heavy Duty Truck Digital Battery Tester with Printer Car Battery Tester 12V 24V 100-2000CCA Lead-Acid Battery, TOPDON BT300P Alternator Tester, Load Tester, with Built-in Printer, Spark Free Metal Clamps, Automatic Reverse Polarity Protection 12V ...TOPDON BT300P 12V 24V Car Heavy Duty Truck Digital Battery Tester with Printer Car Battery Tester 12V 24V 100-2000CCA Lead-Acid Battery, TOPDON BT300P Alternator Tester, Load Tester, with Built-in Printer, Spark Free Metal Clamps, Automatic Reverse Polarity Protection 12V&24VBattery Tester The BT300P is a quick and accurate battery tester that offers printed diagnostic receipts. Know everything about the health of 12V batteries, the 12V & 24V starter motor’s cranking status, and 12V & 24V vehicle electronic system’s charging condition. This is TOPDON’s newly develope