BM550U BATTERY TESTER WITH PRINTER. BM550U wire is made of high-quality copper wire, which is tough and durable and has strong conductivity. 6V battery test result could not printed by built-in printer.
6V/12V/24V BM550U Battery Tester with Built-in Printer For Car/Truck/Motorcycle
Battery Tester with Printer 6V/12V/24V Internal Resistance CCA SOH/SOC BM550U
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