MRCARTOOL 12V OBD2 Memory Saver, Dual Voltage Current Display Cable

MRCARTOOL 12V OBD2 Memory Saver, Dual Voltage Current Display Cable Description

MRCARTOOL 12V OBD2 Memory Saver, Dual Voltage Current Display Cable [Upgraded OBDII Memory Saver Cable] MRCARTOOL Car Memory Saver is specifically designed for automotive battery replacement.When replacing the vehicle battery, connect a spare battery and the vehicle's OBD2 interface to the B80 emergency power cable to prevent loss of vehicle operating data. [Voltage and Current Display]Automotive Memory Saver with Real-Time Voltage and Current Display.Voltage Display: Shows battery voltage during replacement (prevents using depleted batteries; ensures uninterrupted power).Current Display: Detects circuit leaks or measures vehicle quiescent current in ignition-off state. [Auto Leakage Detection] The OBD memory saver can also be used for preliminary detection of electrical leakage in vehicles. Connect it to a charged spare battery and the OBD port to monitor current/voltage. Sequentially pull fuses while watching current. A sudden drop indicates potential drain in that circuit. Cross-reference the wiring diagram to pinpoint affected components. [Protection Function] During battery replacement, disable door light triggers, ensure full vehicle power shutdown, and deactivate all electrical appliances to prevent current surges. This OBD2 memory saver operates at 10-14V (triggering audible alarms at 10V or 14V), featuring triple electrical protection (over-current/over-voltage/reverse-polarity) with a reinforced 3A fast-blow fuse. Automatic power-off activates when voltage exceeds 16V.