Mercedes Battery

How Do You Choose The Ideal Mercedes Battery For Your Car?

If your Mercedes battery is not working the way it should, and it is difficult to start your car each day, it’s time to consider buying a replacement.


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There are many factors to think about when deciding which battery is most suitable for your vehicle. One of the most important is the price. Many people search “how much is a Mercedes-Benz battery” to find out how much they should expect to spend. However, there are plenty of other details that you should look into first.

If you are having trouble deciding which product to buy, don’t worry! We at Orius Batteries are here to help. Here are some essential things to consider to get the ideal car battery for you:
● Group Size
Car batteries are sorted according to “group size”, which refers to the measurements of the battery case, and the positioning of the battery terminals. Thanks to this, you can easily know which battery will best fit the physical dimensions, terminal location, and type needed for your Mercedes-Benz vehicle.
The group size is based on your car’s make, model, and engine type. It is crucial to mount a battery with the terminals in the right location to ensure optimal efficiency.
When shopping, always remember that you should only get battery sizes that are approved for your vehicle. If you’re not sure which size is right, we at Orius can assist you! Our experienced staff can recommend the best battery group for your Mercedes-Benz car.
As a well-established supplier of vehicle battery products, you can rest assured that your new batteries will fit perfectly according to your Mercedes-Benz’s specifications.
● Absorbent Glass Mat (AGM) vs. Standard Battery
Determining the battery cell type for your Mercedes-Benz is essential. You can either go with an Absorbent Glass Mat (AGM) battery or a standard battery.
The typical batteries used for most cars are lead-acid batteries. Reliable and affordable, these battery cells can provide power for standard vehicle electrical accessory loads, allowing most cars to function without any problems.
On the other hand, Absorbent Glass Mat or AGM batteries are famous for being among the highest quality batteries on the market. AGM batteries provide superior power to support the higher electrical demands of vehicles.
These batteries can accommodate the high demands of electrical components, such as DVD players and custom audio systems. They are also highly resistant to vibration and can handle both on and off-road use, making them an attractive option for those who prefer heavy-duty products. Even in the event of severe battery discharge, AGMs can make a quick recovery.
Because of their high performance and astounding qualities, AGMs are one of the most expensive batteries out there and are usually used in luxury cars such as Mercedes-Benz. Even though AGM batteries are more costly than typical batteries, they are safer, last longer, and perform better.
● Cold Cranking Amps (CCA)
Engines have a harder time starting in freezing environments compared to hot ones. Because of this, battery manufacturers have designed products that have improved starting power in the cold. This ability to power the engine is rated in terms of CCA, or “Cold Cranking Amps”.
The rating is based on the number of amps a 12-volt battery can deliver at 0°F for 30 seconds while maintaining a voltage of at least 7.2 volts. The higher the CCA, the easier it will be for the battery to power the engine.
A battery’s starting power lessens over time, so a battery with higher starting power should perform well for a longer period. With this in mind, it’s best to choose a battery for a Mercedes-Benz with a high CCA rating.
● Manufacture Date
All car batteries have a designated shelf life. Make sure to check the manufacture date before having a new battery installed to ensure you’re getting a fresh one.

Replacing Your Battery

The longevity of your battery depends on how often you drive your vehicle and how you store it. On average, a battery in regular storage and driving conditions can last five to seven years.
Excessive heat and cold can damage a battery when exposed for a long time. Infrequent use of a car can also affect the condition of the batteries.
It is essential to take care of your car batteries so that they can last for a long time. However, wear and tear of car batteries are unavoidable; and your Mercedes-Benz can display signs that it is time for a replacement.
If you notice any of these things, it’s time to buy a new battery:
● A cracked battery case
● A frozen battery with visible bulging sides
● A battery that fails to charge
● Loose battery terminals
● Missing battery filler caps
When you encounter one or more of these problems, repairs might still be possible. However, we recommend buying a brand-new battery altogether, as it may be the quickest and most cost-effective option for you.

Battery Replacement

The process of replacing your battery is simple and can be done in less than half an hour. Compared to other vehicles with a more complicated battery replacement process, putting in new Mercedes batteries is much simpler.
You will not need special tools to change the battery in a Mercedes-Benz. All you need is to install the new battery after taking the old one out. After that, remember to calibrate the windows, sunroof, and steering wheel.

Where To Buy A Mercedes Battery

When it comes to car battery products, it is crucial to find a trusted seller with high-quality items, affordable prices, and efficient delivery services.
We at Orius are experts in choosing the right products for our clients; our team will help you pick the top car battery in terms of both performance and price! With our wide range of products, our online store is guaranteed to stock a car battery that is a perfect fit for your Mercedes-Benz.
If you have any questions regarding our products or services, you can reach us via our contact form at


Why do Mercedes have two batteries?

To accommodate high electrical demand, some Mercedes models have two batteries. These are the main starting battery, located in the trunk, and the auxiliary Mercedes car battery, which is smaller and located under the bonnet, near the windshield on the passenger side of the car.

How long should a Mercedes battery last?

The lifespan of a Mercedes-Benz battery greatly depends on several factors, including driving patterns and climate. Typically, you can expect it to last between six and eight years. The OEM battery, in particular, can last for over ten years, in some cases.

Are Mercedes Batteries AGM?

The best battery for Mercedes is usually the Absorbed Glass Mat (AGM). This type of battery offers a high accessory load for vehicles in this class.
The car battery needs to have the same cranking amp and reserve capacity as the old battery.

How often should you replace a Mercedes battery?

The quality of the battery goes a long way in determining how long it will last because batteries for vehicles are different from each other.
For a Mercedes-Benz vehicle, we recommend getting a new battery from a reliable seller of auto batteries every four years or so, as they will weaken significantly by then.

Where is the battery in a Mercedes?

Batteries are located in the trunk or engine bay typically. They may also be found under the front passenger seat or the rear passenger seat.
H4 - How do you start a Mercedes with a dead battery?
Here is what you should do when your Mercedes has a dead battery:
● Remove the metal key from your Mercedes key fob and enter your car.
● Insert your smart key into the ignition.
● Press the brake pedal and ensure that the transmission is in Park position.
● Save the Engine Start/Stop button so that you can reinsert it once you replace the battery in the Mercedes key fob.

How much is a battery for Mercedes?

The battery price will generally range from £225 to £320, though you can find some for less if there’s a vehicle battery sale.
If you want to save an extra £80 to £160, you can cut the cost of a new Mercedes battery price by doing the replacement work yourself.

Why does my Mercedes battery keep dying?

Typically, battery drains happen because the electronic equipment is always drawing current from the vehicle battery while the car is parked. Aside from that, a defective electrical system, Control Unit, or a faulty CAN-Bus (Controller Area Network) may cause your car battery to die.

How do you reset a Mercedes computer after replacing the battery?

To reset the ESP warning, follow these steps:
● Start your car.
● Turn the steering wheel all the way to the left and hold it there for two seconds.
● Turn the steering wheel all the way to the right and hold it there for two seconds.
● Repeat this process once more.
● Turn off the car, then restart it.

How do I know if my battery is AGM?

The AGM (Absorbed Glass Mat) uses a fine network of glass fibres instead of water or a gel, which creates a mesh inside the battery. Similar to the gel cell, shaking the battery will not lead to any extra movement. Unfortunately, the only way to identify an AGM battery is by checking the label or asking an expert.

How To Change Mercedes Key Battery

Chrome Key (Most Recent Model)
At the moment, there are two chrome keys in circulation. One comes with a triangle panic button while the other comes with a circular panic button.
Here is how you replace the batteries on these chrome keys:
● Triangle Panic Button
Check your fob and look at the bottom; there should be a black tab. When you pull on this, it will release the key from inside the fob.
You should also notice a gap in your fob, where one side is flat while the other side dips inward. Take the tip of the key and insert it into the flat side until you hear a pop.
The back of the case will pop open. Lift the back casing up and take out the small Mercedes key battery. Place your new battery in place, with the positive side facing you, and fit the back cover on. Slide the key back inside, and you’re good to go!
● Circle Panic Button
For the circle panic button, you should see a black tab at the bottom of your fob. Slide this black tab while pulling the key out at the same time.
The handle of the key should be inserted into the groove of the flat side of the fob, right by the edge. Pull it inwards and, at the same, pull the whole case backward.
You should now be able to slide out both batteries and replace them with fresh ones. Slide the case back on, and push the key back in.

How To Maintain Your Car While Unused For Long Periods

Cars can be left unused for a certain period depending on the condition of your battery. Most modern vehicles can last two weeks without needing to be turned on for recharging.

What should I do if I’m storing my car for three months?

Here’s what you should do when you store your car:
● Regularly clean and polish your vehicle.
● Make sure it’s completely dry if you plan to store it in a garage.
● Consider a refund on your car tax by making a Statutory Off Road Notification (SORN).
● Look into reducing your insurance cover to 'Fire and Theft' only (if you prefer).
● Make sure that the garage where your car is being stored is well ventilated.

What if I'm storing my vehicle for over three months?

● Check your oil level and change if needed.
● Arrange for an Oil and Filter service.
● Lubricate the locks thoroughly.

Dealing With A Flat Car Battery

If you get a flat Mercedes battery car, you have a few options to consider:
a. Remove the battery and charge it. This process will usually take around 24 hours. Be careful not to overcharge your battery when doing this.
b. Use a portable jump pack. The jump pack is a 12v car battery that you can connect to your car battery.
c. Using a set of jump leads, connect your battery to another vehicle, and use that car’s battery power to start yours.
Be careful when jump-starting, as a sudden spike in voltage can damage the car’s electrical components. The cost of replacing expensive components like the ECU is much higher than any Mercedes car battery price.
If none of these methods work, then it may be time to buy a new car battery. Check out our store now and get quality products for a low auto battery cost!