Seller notes

AUTOOL BT30 is a OBD emergency power cable with core processor.It can displays battery voltage (prevents the use of a depleted battery and avoids ECU power loss due to insufficient voltage during battery replacement) and display of current to detect circuit leakage and monitor vehicle current consumption when not in use.It also has reverse polarity protection,overcurrent protection with a built-in 3A fast-blow fuse,overvoltage protection activates power-off protection if the device voltage excee...

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