Car Battery Replacement
Car Battery Replacement
Car battery replacement at your home or business. From simple commuter vehicles to high-end supercars, one of our friendly team members will come to you and replace your car's battery.
Simple A to B Cars, to High-End Vehicles. We got you covered.
Whichever your car manufacturer is, we'll have a car battery ready for you. Our technicians are ready to assist you wherever you are.
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Acura Battery Replacement
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Audi Battery Replacement
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BMW Battery Replacement
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Chevrolet Battery Replacement
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Chrysler Battery Replacement
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Dodge Battery Replacement
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Fiat Battery Replacement
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Ford Battery Replacement
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GMC Battery Replacement
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Honda Battery Replacement
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Hyundai Battery Replacement
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Infiniti Battery Replacement
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Jaguar Battery Replacement
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Jeep Battery Replacement
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Kia Battery Replacement
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Lexus Battery Replacement
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Mazda Battery Replacement
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Mercedes-Benz Battery Replacement
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Mini Battery Replacement
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Mitsubishi Battery Replacement
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Nissan Battery Replacement
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Porsche Battery Replacement
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Ram Battery Replacement
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Smart Battery Replacement
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Subaru Battery Replacement
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Toyota Battery Replacement
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Volkswagen Battery Replacement
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Volvo Battery Replacement
Don't see your car's maker? Don't worry we work with all automotive brands. Contact us or email us at contact@mobilebattery.ca for any questions about your car's battery replacement.
When should I change my car battery?
A standard lead-acid battery typically lasts between 3 to 5 years, while an AGM (Absorbent Glass Mat) battery can last around 5 to 8 years. However, these lifespans can vary depending on your driving habits and how well you maintain your vehicle.
You’ll usually need to replace your car battery when the engine struggles to turn over due to insufficient power. This often indicates that the battery’s cold cranking amps (CCA) are no longer meeting the requirements needed to start your engine. For instance, your vehicle may take longer to start in winter than in summer. That’s because cold temperatures reduce a battery’s ability to produce electrical current. If the battery’s CCA falls below what your engine requires, you may need to jump-start the vehicle to get it running.
What type of battery should I use?
At MobileBattery, we always recommend using the manufacturer-specified battery for your vehicle. For most commuter cars like Honda or Toyota, a standard lead-acid battery is typically sufficient. However, modern German vehicles—such as BMW, Audi, or Mercedes-Benz—often require a larger, high-performance AGM battery that meets OEM specifications.
Many German cars use group H8 AGM batteries to ensure all advanced electronics and features operate reliably. That’s why we only install OEM-spec AGM batteries in most modern German vehicles—so your power-demanding luxury car always gets the performance and reliability it needs.
How to Replace A Car Battery Safely.
For most Japanese vehicles, replacing a car battery is straightforward and typically only requires a 10mm socket and a ratchet with an extension. In contrast, German vehicles—like BMWs—may require you to remove a seat and use a diagnostic tool to register the new battery with the car's system.
Step 1: Diagnose Before You Replace
Before replacing the battery, test it first. A no-start condition could also be caused by a faulty starter motor or a loose battery cable, not necessarily a dead battery.
Step 2: Wear Safety Gear
Always wear safety glasses and gloves when working on your vehicle’s battery.
Step 3: Locate the Battery
Depending on the vehicle, the battery could be located in the engine bay, trunk, or even under a seat. Check your owner's manual if you're unsure.
Step 4: Use a Backup Power Source (Optional)
To preserve your radio presets, sunroof calibration, and window settings, use a memory saver or secondary power source. If the battery is completely dead, this step may not be necessary.
Step 5: Disconnect and Remove the Battery
Always disconnect the negative terminal first, then the positive. Remove the battery hold-down bracket or tie-down strap, then carefully lift the old battery out.
Tip: Cover the terminals of the new battery with caps during installation to avoid accidental contact.
Step 6: Install the New Battery
Place the new battery in position. Clean the terminal clamps with a wire brush and apply a corrosion inhibitor spray to the posts. Then reconnect the positive terminal first, followed by the negative, and secure the hold-down bracket.
Step 7: Register the Battery (for Some German Cars)
Vehicles like BMWs require battery registration after installation. This allows the control module to properly monitor and charge the new battery. Skipping this step can lead to shortened battery life or charging issues.
Step 8: Start the Car and Check Charging Voltage
Start your engine and test the alternator. Many modern vehicles display voltage levels on the dashboard. A healthy charging system should show 13.5 to 14.5+ volts. If the reading is 12.8 volts or lower, the alternator may not be charging the battery correctly.
Why choose MobileBattery?
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Prompt and Reliable Service
We offer on-time, same-day battery replacement to get you back on the road quickly. -
On-Site Warranty Support
Enjoy peace of mind with our full on-site warranty—if something goes wrong, we’ll take care of it at your location. -
Top-Tier Battery Brands
We only install high-performance, trusted battery brands built to last. -
Hassle-Free Installation
Our certified technicians handle everything—from testing to installation—so you don’t have to lift a finger.
At MobileBattery, we deliver the full auto shop experience straight to your driveway, using only premium batteries backed by a reliable on-site warranty.