Welcome EN Thank you for purchasing the TOPDON BT MOBILE lite wireless battery tester. Please read and understand this manual carefully before using this product. If any issues arise from the operation of this product, welcome to contact VXSSRUW#WRSGRQFRPIRURIͤFLDOWHFKQLFDOVXSSRUW English About BT MOBILE lite is a 12V wireless battery and system tester, adopting the most advanced conductance detection technology and reverse polarity protection technology to provide key information about battery health for technicians, professionals, so as to identify battery and charging problems quickly, easily and accurately. Package List 1.BT MOBILE lite Wireless Battery Tester 2.User Manual 3