For maintaining voltage continuity to engine computer, clock, and radio memory when vehicle battery is disconnected. Retains radio presets, ECM codes, and learned procedures up to four hours. Plugs into vehicle's cigarette lighter outlet. Uses 9 volt battery (not included).
For maintaining voltage continuity to engine computer, clock, and radio memory when vehicle battery is disconnected. Retains radio presets, ECM codes, and learned procedures up to four hours. Plugs into vehicle's cigarette lighter outlet. Uses 9 volt battery (not included).
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