OBD2 Memory Saver Cable 3 m: 12V Source to OBD II Port

The memory saver cable is the battery-change insurance policy: one end takes power from any 12V DC source with a cigarette lighter socket — a jump starter, a donor car, a bench supply — and the other end inserts into the vehicle’s OBD II 16-pin port. While the battery is disconnected and swapped, the vehicle electronics stay fed, preserving codes, electronic presets and settings that a cold loss would wipe.

The 3-metre run is the working length: the donor source sits outside the engine bay without stretching. Operation is two plugs — lighter plug into the donor, 16-pin plug into the OBD port of the car getting the battery changed — then swap the battery.

Key features

• Powered by any 12V DC source with lighter outlet
• Interface between 12V source and vehicle OBD II port
• Preserves vehicle codes and electronic presets
• Works with jump starters and DC 12V supplies
• 3 m lead for reach outside the engine bay

Specifications

Warnings carried from the specification — read before use: review the battery and vehicle manufacturer’s safety instructions before working on the battery. The vehicle electrical system receives power through the OBD connection, so the disconnected battery connectors are electrically live and must be covered to prevent shorting. Do not use this as a permanent power feed.

Typical applications

• Battery replacement without ECU / radio / window reset
• Dealer and workshop battery service
• Mobile mechanics with a jump starter as donor

Custom and OEM options

Length and packing run per order; samples ship in 3–7 days.

FAQ

What can power it?
Any 12V DC source with a lighter socket — jump starter, second car, bench supply with a lighter adapter.

Why the live-terminal warning?
Memory saver power flows into the vehicle harness, so the disconnected battery cables are live — cover them to avoid a short.

Samples, packing options, payment terms and warranty conditions are set out in How to Order and Delivery Information.