UniEnergy Technologies Battery » Tesla Model 3 12v Battery Replacement Cost (2023 Updated)

Tesla Model 3 12v Battery Replacement Cost (2023 Updated)

Now that the Tesla Model 3 has been released, many people are interested in what the battery replacement cost is. Not only is the Tesla Model 3 one of the most popular cars on sale today, but it is also a high-end electric car and this is one of its features that makes it so appealing to potential buyers.

The first thing to know about the battery replacement cost for the Tesla Model 3 12v is that it will be more expensive than other models because of its range and performance.

Nevertheless, this article will cover everything you need to know about replacing your Tesla Model 3 12V battery, and what all factors affect your battery replacement cost.

What Type of 12V Battery Does Tesla Use?

The Tesla Model 3 uses a high-tech 12V battery that provides plenty of power and lasts a long time. This type of battery is called a lithium battery, and it’s the same type of battery used in many laptops and smartphones.

Lithium-ion batteries are known for being lightweight and powerful as compared to the lead-acid battery types, so you can rest assured that your Tesla Model 3 will have no problem starting up in cold weather or powering all the features you need.

Another irresistible advantage is that these lithium-ion batteries have a higher energy density and are lighter than lead-acid types, so your truck will have a greater range as well.

What Type of 12V Battery Does Tesla Use?
Image Credit: shop.teslarati

In a Tesla Model 3, How long Does the 12V Battery Last?

The Tesla Model 3 is a workhorse of a car, and its 12V battery is no joke either.

If given proper care and maintenance, your Tesla Model 3 12V will give you up to 5 years of faithful service.

Even if you don’t drive your Model 3 every day, all you have to do is keep the 12V battery charged. You can do this by plugging it into a standard wall outlet overnight or using a portable charger.

However, it is important to note that the lifespan or degradation of your car battery also depends on other factors such as weather conditions, driving habits, and car models.

Why is My Model 3 Constantly Draining Its 12v Battery?

The 12v battery is used to power the accessories in your Tesla Model 3, this includes everything from headlights and taillights, to air conditioning and windows. If you leave your car running for a long time, your battery will drain faster than normal.

Also, if you park your Tesla Model 3 for too long without using it or letting it charge up (which we don’t recommend), that also puts extra stress on your battery health and can cause it to drain fast.

Why is My Model 3 Constantly Draining Its 12v Battery?
Image Credit: shop.teslarati

How Much Does It Cost to Replace The 12V Battery in A Tesla Model 3?

The cost of replacing the 12V battery in your Tesla Model 3 will vary based on the model and battery capacity. For example, the standard 90-kWh battery is sold for $8,000, while the 85-kWh version is priced at $7,500.

If you want an extra-large 100 kWh model that can hold up to 200 miles on a single charge, it’s going to be more expensive than these other options but not by much.

More so, the price varies widely between companies because they have different pricing models. Some companies offer discounts if you buy the main battery pack or multiple units at once. They also come with extended warranties, while others have set prices based on the size and age of their batteries.

Is The 12V Battery in a Tesla Covered by Warranty?

Yes! It is great to know that the 12V Battery in Tesla Model 3 is covered by warranty. Tesla is a company that invests in its customers by providing them with the best quality products and services, plus they also have excellent customer service, which most users can attest to. This Tesla service center has a battery replacement program in which you can get a new battery for free if your old one fails within 8 years or 100k miles.

In other words, this means that Tesla will cover all costs related to the replacement or repair of this part in your car.

Is The 12V Battery in a Tesla Covered by Warranty?
Image Credit: ohmmu

If I Can’t Get a Lithium-Ion Replacement Now, How Can I Reduce the Risk of Battery Failure?

Is there any way to reduce the risk of the 12v lead acid battery failing on my Tesla Model 3 other than replacing it with a lithium-ion replacement? Yes, and we’d explain how.

  1. The most obvious way to reduce the risk of your Tesla Model 3s 12V lead acid battery failing is to make sure it’s not left on when not in use. There’s no point leaving your car on when you have no need for it, and this is the easiest way to prevent it from getting damaged.
  2. You should also be aware that some cars have a habit of overcharging their batteries, so if you’re going to leave the car plugged in all the time, make sure that there are no devices nearby that could cause problems such as surge suppressors or UPSs (uninterruptible power supplies).
  3. Another way to prevent a battery failure is to put the EV battery into deep sleep if it is running low just as Tesla recommends.
  4. Lastly, while aftermarket cooling fans can help keep things cool by lowering temperatures inside the cabin; however, these aren’t necessary for most drivers and shouldn’t be used interchangeably with OEM parts when possible.


While the cost of a replacement battery may seem high, it’s important to remember that the Model 3 is a high-performance vehicle that requires a high-quality battery.

So, if you’re looking for the best possible performance from your Model 3, it’s worth investing in a Tesla-approved battery management system.

Remember, replacing your battery is an important investment that can prolong the life of your Tesla Model 3.

Leave a Comment