OTC 3177A Professional Memory Saver is 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.
The Memory Saver comes with two vehicle cables: a cable with two cigarette lighter plugs (cigarette lighter cable) and a cable with a cigarette lighter plug on one end and an OBDII plug on the other end (OBDII cable). Both cables supply power from the Memory Saver internal battery to the vehicle, one through the vehicle cigarette lighter receptacle, the other through the vehicle OBDII connector. The cigarette lighter cable has identical plugs and can be plugged either way.