OTC Tools & Equipment Professional Memory Saver - part #: OTC-3177A

An effective solution for saving vehicle data
Saves the vehicle's on-board diagnostic memory and other on-board memory components such as anti-theft radios, digital clocks, radio presets, seats, mirrors, comfort settings, etc. when the vehicle's battery is removed or disconnected.
Professional Memory Saver Benefits and Features:
OBD II cable for fast connection to the vehicle
Cigarette lighter adapter for use with vehicles that do not have an OBD II connector
LED lights confirm circuit between the cigarette lighter/power outlet and the vehicle's battery with the ignition on or off
State of charge indicator identifies when the memory saver needs to be plugged in for recharge
Resettable fuse protects against excessive current draw through either the OBD II connector or the vehicle's cigarette lighter
High capacity, rechargeable sealed lead acid battery for extended service between charges
Power on/off switch
One complete, durable compact unit