What Does a Car Memory Saver Do?

by Phil Borges // in Car

You may be wondering what does a car memory saver do? Read on to find out how this device works. We will go through the different types of car memory savers available and explain when they are needed most.

What does a car memory saver do?

A car memory saver, also known as a battery connector, is a small battery-powered cable with the perfect amount of voltage and current to keep all of your automobile’s computer memory alive while you replace the main battery.

When you change your automobile’s battery, using a vehicle memory saver can help you save time and money. And it will keep and maintain all of the cars’ computers running with data needed, so the systems work properly. Vehicle memory savers are an essential tool for any car owner. Not only do they help you keep the stored settings in your engine control computer, but also with other important components like anti-theft systems on radios and seat adjustments. Without a memory saver, you might lose the data in your car’s memory and have to go through a process called “re-learning” when the battery is replaced.

How do you use the car memory saver?

Follow the instructions below on how to use the memory saver without losing any settings or the radio presets, etc., while replacing the battery.

Step 1: Make sure to switch off the ignition before disconnecting the battery.

Step 2: Find the OBD2 connector underneath the driver’s side of the dashboard and then connect the car memory saver into it.

Step 3: Disconnect the battery following the instructions on the manual of your car. Replace the new battery and ensure that all cables are in place securely.

Step 4: Once the new battery is set, disconnect the memory saver from the OBD2 port.

And there you have it. Now your computer memory will be safely stored and stay alive.

Do you need a memory saver when changing car battery?

A memory saver for cars will save the settings of the car’s electronic devices so that they don’t have to be reset when you disconnect and reconnect the battery. However, if your car is newer, it may not have this feature and you may not need a memory saver.

What are the memory saver options available in the market?

There are various types of best car memory saver available in the market. These are available in different shapes and sizes. You can find these products in your nearest car accessory store or online like Amazon, which offers a wide range of car memory saver brands. Some of these brands are listed below:

EZRED MS4000 Automotive Memory Saver: this device may be a bit costly but is high quality, a must-have for any car enthusiast. It can save all of your drive-ability codes and settings when disconnecting or changing the battery, as well as protect anti-theft radio/clock settings, so you’re not left unprotected.

Schumacher Memory Saver Detector: The Schumacher memory saver detector is a simple gadget that identifies vehicle compatibility and prevents data loss when your battery fails. It is fuse protected to ensure a reliable connection.

OBD ll Connector Vehicle Memory Saver: With the OBD ll connector vehicle memory saver, you can store your car presets, Bluetooth devices, and diagnostic codes for up to two hours. The device also features a 9V battery protection circuit that’ll make sure all of these important bits of the information stay safe when disconnected from their power source.

Schumacher Memory Saver Adapter Cable: This lightweight and easily transportable device come with a 3-feet long cable and is the best way to preserve stored fault codes and programmed electronic settings such as clocks, seat positions, or alarms while disconnecting the battery.

VSTM OBDII Memory Saver: A simple device that can help you avoid losing the saved data when replacing your car battery. This product works with any 12V DC power source.


A memory saver can be a massive help if you want to keep your car’s computer memory alive while you change the battery. This handy tool should be included in your toolbox so that it’s easy to access whenever you need it.

If you don’t own one yet and you are planning to make a purchase, I suggest that you invest a little more in a good quality car memory saver. The cheaper ones tend to fail when you need them most, and they don’t last very long either, which can be frustrating since you end up spending the same amount of money as if you had bought a better product right from the start (and without having to make repeated purchases). You could also try purchasing a memory saver from Amazon as they offer a wide range of products. They provide very detailed information about each product with customer reviews and ratings to help you make a more informed choice.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.