What is a memory saver and why would I need one?

A memory saver is a device that provides temporary power to a vehicle's electronic control units (ECUs) when the main battery is disconnected. This prevents the loss of important data like radio presets, seat positions, alarm settings, and diagnostic trouble codes. For modern vehicles with complex electronic systems, using a memory saver is crucial during battery replacement or other electrical work to avoid the inconvenience and potential costs associated with resetting these systems.

What are the different types of memory savers available?

Memory savers come in several forms. Some plug into the vehicle's OBD II port, while others use the cigarette lighter (CLA) socket. Some, like the EZ Red Automotive Memory Saver, utilize the CLA socket. Others, such as the Lang Computer Memory Saver, use a 9V battery. The best choice depends on your vehicle's compatibility and personal preference. Ensure the chosen method can supply continuous power without damaging the vehicle's electrical system.

How do I choose the right memory saver for my vehicle?

Consider your vehicle's age and the type of ports available. OBD II connections are common on newer vehicles, while older models may require a cigarette lighter adapter. Also, check the voltage and amperage requirements of your vehicle's electronic systems to ensure the memory saver can provide sufficient power. Some memory savers, like certain EZ Red models, may require an additional adapter for CLA connection on older vehicles.

Can I use a memory saver on any vehicle, including imports?

Yes, memory savers are generally compatible with both domestic and import vehicles. However, it's essential to verify the voltage and connector type before use. Most memory savers are designed to work with standard 12V systems, but some vehicles may have different requirements. Always consult your vehicle's service manual for specific instructions and compatibility information. Using the wrong voltage could damage the vehicle's electronics.

How do I connect a memory saver to my vehicle?

The connection method depends on the type of memory saver. For OBD II models, simply plug the device into the OBD II port, typically located under the dashboard. For cigarette lighter (CLA) models, plug it into the CLA socket. Ensure the connection is secure and that the memory saver is receiving power, often indicated by an LED light. Refer to the memory saver's instructions for specific steps and safety precautions.

Is it safe to leave a memory saver connected while I'm working on my car?

While memory savers are designed to be safe, it's crucial to follow the manufacturer's instructions and take precautions. Ensure the memory saver is properly connected and that the voltage is correct for your vehicle. Avoid disconnecting the memory saver while the main battery is disconnected, as this will result in memory loss. Periodically check the connection and the memory saver's power source to ensure it's functioning correctly.

What kind of power source do memory savers use?

Memory savers typically use a 9V battery, an external 12V battery, or an AC power source through a wall adapter. The power source depends on the design of the memory saver. For example, the Lang Computer Memory Saver utilizes a 9V battery. Models like the EZ Red Memory Saver use the vehicle's cigarette lighter (CLA) socket and thus rely on an external 12V source. Choose a memory saver with a power source that is readily available and convenient for your needs.

What should I do if my vehicle loses its memory even with a memory saver connected?

First, verify that the memory saver was properly connected and receiving power throughout the battery disconnection process. Check the memory saver's power source (battery or external connection) to ensure it wasn't interrupted. Also, some vehicles may have multiple ECUs with separate memory systems, and a single memory saver might not cover all of them. In rare cases, a faulty ECU could also be the cause. Consult your vehicle's service manual for troubleshooting steps.