Auxillary Battery Replacement Cost Estimate
Worried you might overpay for your Auxillary Battery replacement? Use My Mechanic to get a fair cost estimate for your battery replacement.
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How much does it cost to replace an auxiliary battery?
An auxiliary battery replacement typically incurs a total cost that can vary depending on your vehicle. This cost covers both parts and mechanic labor. A certified mechanic typically takes around 30 minutes to complete the replacement, including an inspection to determine if a replacement is required. If deemed necessary, they will proceed with the full replacement process.
How did we estimate these prices?
My Mechanic experts researched and collected data from 2500+ real repair shops in all states in Malaysia, including everything from the total cost of repair services to the hourly labor cost for mechanic labor in each shop. We combined that data with our expert database of hundreds of real repair jobs, thousands of real cars, millions of real car part prices in order to best estimate the cost of each repair service. Our labor cost estimate is calculated by taking the average hourly labor rate for a certified MyMechanic in Malaysia, times the number of hours it takes on average to complete a repair.
What parts do I need for my auxiliary battery replacement?
Unlike other components of your vehicle, the auxiliary battery consists of a single part. When it malfunctions, it's the only component that requires replacement.
Many vehicles do not feature an auxiliary battery. However, if yours does, it's crucial to ensure it remains in good working condition to prevent any disruptions to your car's electrical systems.
On average, an auxiliary battery incurs a cost that varies depending on your vehicle's make and model. It's advisable to research recommended brands suitable for your specific vehicle, considering factors like year, make, and model. These batteries are typically available at various retail locations and online retailers.
When considering the replacement of your auxiliary battery, OEM (Original Equipment Manufacturer) parts are generally more reliable. These parts are manufactured similarly to genuine parts, ensuring greater reliability and a longer lifespan compared to aftermarket batteries. Additionally, OEM parts typically come with a warranty, offering protection against defects or malfunction. However, some aftermarket batteries from reputable brands may also be viable options.
You can acquire battery through MyMechanic, a trusted source for automotive parts. Ensure to refer to your vehicle’s owner's manual for the specifications of your auxiliary battery .
Where can I get my auxiliary battery replaced
Finding a mechanic to replace your auxiliary battery can be challenging, especially if you don't have a trusted garage. However, you can get your auxiliary battery replaced at MyMechanic in Malaysia. Additionally, consider using a service to compare prices from a wide range of reputable auto repair shops. This service assesses fair price estimates from each auto shop, taking into account their hourly labor rate. It also helps you determine if diagnostic fees are included in the service cost and provides honest reviews to aid in your decision-making process.
How did we vet these shops?
My Mechanic experts researched 2500+ real repair shops across the Malaysia. We talked to real shop customers, and analyzed both real shop pricing data and thousands of real customer reviews from each shop to verify them individually.
How will a mechanic replace my auxiliary battery?
If your car has a bad auxiliary battery, your mechanic will replace it by following these steps:
- Confirm that the auxiliary battery is faulty
- Locate the auxiliary battery—In diesel trucks, the secondary battery is usually located under the hood. In luxury vehicles, EVs, and hybrids, the auxiliary battery may be found under the hood, inside the car under a seat, or in the trunk.
- Disconnect the negative and positive battery cables before removing any tie-downs securing the battery in place.
- Remove the old auxiliary battery
- Install the new auxiliary battery by connecting the positive and negative cables and reattaching the tie-downs.
What happens if I don’t replace my auxiliary battery?
If you observe any signs of a defective auxiliary battery, it's important not to delay having it inspected. A faulty auxiliary battery can result in issues with your car's electrical components and safety features, or they may cease functioning altogether. Common symptoms to watch out for include:
- Entertainment system
- GPS
- Audio system
- PDC sensors
- Blind Spot Assist
- Lane Keeping Assist
In the worst-case scenario, your car could fail to start or stop. If your car is showing signs of an issue with the auxiliary battery, take it to the mechanic immediately.
What is an auxiliary battery?
An auxiliary battery serves as a secondary or backup power source present in certain vehicles. Typically, luxury brands such as Mercedes-Benz, Audi, and BMW incorporate auxiliary batteries into their models.
The primary function of an auxiliary battery is to support the main battery. It supplies power to components of the vehicle that operate while the engine is not running, such as the security system. Additionally, auxiliary batteries may assist the engine start/stop system, alleviating strain on the main battery and alternator.
While primarily found in cars with diesel engines due to their higher amp requirements during cranking, auxiliary batteries are also featured in hybrids, electric vehicles (EVs), and select luxury vehicles.
How do I know if my auxiliary battery is faulty?
If your auxiliary battery is malfunctioning, you might notice some of these common symptoms:
- You have trouble starting your car: The auxiliary battery acts as a backup power source for the car’s electrical system. If your primary battery fails to supply adequate power and your auxiliary battery is faulty, the stop/start function in your car won’t work.
- You notice leaks around the battery: The fluid in your battery is crucial for preventing battery cells from burning out. If you observe fluid leaking around your battery, prompt replacement is necessary. Leaking fluid can cause damage to other engine parts due to corrosion.
- The battery light appears on your dash: A fully charged battery enables every vehicle component to function properly. When the battery isn’t fully charged, these functions may malfunction or fail. The battery light typically illuminates when there’s an issue with the charging system.
The auxiliary battery lifespan for most cars ranges between five and eight years. If your vehicle falls within this age range and has never had the auxiliary battery replaced, it's advisable to have it inspected.
Remember: While you can still operate your vehicle with a failing auxiliary battery, doing so can strain your primary battery, leading to a reduced lifespan and requiring premature replacement.
How often should an auxiliary battery be replaced?
Auxiliary batteries degrade over time, with the rate of deterioration influenced by factors such as your vehicle's make and model and adherence to a regular car maintenance schedule. While most auxiliary batteries typically last between 5 to 8 years, actual lifespan can vary.
As the battery deteriorates, it can strain other components of the car, potentially causing certain functions to fail. If you suspect your auxiliary battery needs replacement, it's crucial to visit a mechanic promptly. Neglecting to replace a dead auxiliary battery can result in significant vehicle damage.
Can I replace my auxiliary battery myself?
If you're confident in your auto repair skills, you may consider DIYing an auxiliary battery replacement. However, not all vehicles are equipped with auxiliary batteries. For those that do, the replacement process is akin to replacing an engine battery. If you're uncertain or uncomfortable with the procedure, it's best to entrust the auxiliary battery replacement to a professional.
FAQs
A faulty or failing auxiliary battery won't necessarily hinder your ability to drive, but it can result in complications with certain systems in your car, such as non-functional accessory functions.
A faulty auxiliary battery can impact your vehicle's performance, leading to errors in the electrical systems. Neglecting to replace a faulty auxiliary battery can disrupt the proper functioning of your car's electrical components and safety features.
In vehicles equipped with a dual battery system, one battery, known as the starter or primary battery, is responsible for starting the car. The second battery, referred to as the house or auxiliary battery, provides power to all accessory features when the engine is off, including the audio system and start/stop function.
