USB/9V Powered OBD Connector Memory Saver for Vehicle Battery Replacement/Disconnect Short/Long Term Memory Storage
- Much more reliable than with similar 12v Cigarette outlet models.
- Retains radio presets, Diagnostic codes and ECU learned procedures.
- Safe voltage blocking diode installed for safe USB adapter or 9V battery use.
- For maintaining voltage continuity to engine computer, clock and radio memory when vehicle battery is disconnected.
- Instructions are included for perfect results ------- Uses USB power source or 9V battery(Not included).