What Does A Battery Saver Relay Do?

When your phone or computer is running low on battery, you will get a message like “Power saving mode is on”. It means your phone or computer is automatically turning on battery-saving mode. Therefore, electronic devices will save energy to keep operating for as long as possible. Battery saver mode will help you get the most out of your battery life.

Likewise, the battery saver relay is an electronic device that extends the life of a car battery. Does it work like a phone or computer’s battery-saver mode? What does a battery saver relay do? To answer these questions, let’s find more detailed information here.

What Does A Battery Saver Relay Do?

As you know, the battery saver relay is an electronic device that helps prolong the life of a car battery. Its job is to prevent the battery from being overcharged or draining too quickly. Battery saver relay works by disconnecting the battery from the electrical system when you are not using it and then reconnecting it when needed.

From there, it will help you save electricity due to the habit of not turning off the lights before getting off the car. The battery in the car will be protected to prevent overuse or charging for too long. From there, the health of the battery will be maintained more stable and durable.

Currently, new car manufacturers also have this function and integrated it into their computer systems. In addition, you can also install this device in your car to save energy and preserve battery life.

what does a battery saver relay do

Power saving mode means that the power will be significantly reduced. Only the necessary functions will be maintained at an average level. From there, your car is still guaranteed to have basic functions and use the power source in the most efficient way.

Some of the basic changes when you use battery saving mode such as the screen will be dimmer and can turn off earlier to save power when you are not using it. In addition, you can only use certain basic or certain features to keep the vehicle moving. Some entertainment functions such as games, listening to music, or unnecessary lighting devices will be darkened to reduce the power to maintain the main functions.

For example, you will not be able to use applications that consume a lot of power such as online games, online music, or entertainment and lighting support software. Your device will then automatically turn off battery-saver mode when plugged in and restore full car features. This process will happen automatically, so you don’t need to do any turning off or on in the car.

How To Test The Battery Saver Relay?

If your car has a battery saver relay, you should regularly check it to make sure it’s working. Periodic inspection is the best way to detect abnormalities early, correct them in time, and prolong the life of the battery saver relay.

You can check the operation of the battery saver relay in the following way:

  • Step 1: Start the engine and let it run for a few minutes.
  • Step 2. Turn off all lights and accessories in the car.
  • Step 3. Open the hood and locate the battery saver relay. Its location is usually near the battery or fuse box.
  • Step 4. You use a voltmeter, to check the continuity between the two terminals on the relay. The purpose of this action is to check for continuity when the engine is running and for discontinuity when the engine is off.

If there is any intermittent interruption while the engine is running or the operation when the engine is off, you need to check this device carefully.

How Does Battery Saver Relay Work On Cars?

Battery saver relay is a device that helps extend the life of car batteries. Its working principle is to provide a constant voltage to the battery. From there, your car battery will not be overcharged or discharged to affect the battery’s durability.

When you connect the battery saver relay to your car’s electrical system, it automatically monitors the voltage and current going to the battery. If the battery saver relay detects that the voltage is too high or too low, it will automatically adjust accordingly. So your car battery will always remain at a stable level and within the safe range specified by the manufacturer. Battery life will also be maintained and improved significantly.

Summary

The battery is the part that provides the energy to start the engine of a car. A battery saver relay is a device that helps keep your battery from draining when the car is not in use.

In addition, this device will automatically enter a battery saver mode to maintain travel activities and automatically turn off when it is charged to the mains. Therefore, the car battery will avoid the phenomenon of overcharging or over-discharging. From there, it can help extend the life of the battery. So, you will limit the need to change the battery often.

Some car manufacturers now have a built-in battery saver relay in the battery system. If your car does not have this device, you can learn and install it in your car to preserve the life of the battery.

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