Car Battery Replacement at your home or office in San Antonio.

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customer ratings

(7,032)

$200.97 - $319.07

Price range for all vehicles


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Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

customer ratings

(7,032)


Recent Car Battery Replacement reviews in San Antonio

Excellent Rating

(7,032)

Rating Summary
6,795
143
32
17
45
6,795
143
32
17
45

Peter

42 years of experience
1320 reviews
Peter
42 years of experience
Peter is excellent in all phases!
Excellent

Cornelius

17 years of experience
101 reviews
Cornelius
17 years of experience
Cornelius was on time, professional and courteous. Replaced battery and further diagnosed an issue as requested.

Chris

21 years of experience
1940 reviews
Chris
21 years of experience
Chris was on time, professional and did a great job changing the battery. The mobile service is super convenient for people with busy schedule. I was notified when he was on his way and when he arrived. The price is also responsible.

Trung

11 years of experience
412 reviews
Trung
11 years of experience
Trung came before time and patiently listened to what I wanted to be done. He quietly went about completing his task on time and in the end even provided a coupon which lowered the cost of the current quote. He is definitely someone I will approach in the future.

Chris

15 years of experience
122 reviews
Chris
15 years of experience
This was my very first time using YourMechanic and my mechanic was Chris. I tell you right now I am extremely pleased with the service. Chris is am honest and knowledge mechanic. I will tell you right now if you get Chris as a mechanic, know what you are in very good hands. Thank you so much for your insights and your recommendation.

Dellano

17 years of experience
438 reviews
Dellano
17 years of experience
Delano arrived early with everything needed to replace my dead battery. A quick and excellent job completed. Thanks!

Franky

28 years of experience
42 reviews
Franky
28 years of experience
Trying to get through the website was a bit of a challenge and almost gave up. After working with Franky my mechanic i was so glad i push through not so user friendly site. Franky was awesome!

Andrew

10 years of experience
668 reviews
Andrew
10 years of experience
Professional, pleasant, FAST!

Jeffrey

15 years of experience
64 reviews
Jeffrey
15 years of experience
Jeffrey was great and very professional. Explained everything he was doing. Thank you.

James

20 years of experience
51 reviews
James
20 years of experience
Pleasant, knowledgeable, explained work that was completed, and answered all questions.


How much does Car Battery Replacement cost in San Antonio?

It depends on the type of car you drive and the auto repair shop you go to in San Antonio. Our mechanics in San Antonio are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office in San Antonio.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2006 Mazda 5 $224 $144.06 $79.99 10% $251.56
2006 Toyota Tundra $241 $160.56 $79.99 10% $268.06
2008 Nissan Rogue $230 $149.56 $79.99 10% $257.06
2015 Audi A6 Quattro $304 $224.36 $79.99 8% $331.86
2009 BMW 650i $304 $224.36 $79.99 8% $331.86
2012 BMW M6 $304 $224.36 $79.99 8% $331.86

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Car Battery Replacement Service

What are car batteries and how do they work?

A car battery is an energy storage device that relies on a chemical reaction within the battery to produce electricity. The stored electrical energy is used to initially operate the starter motor, ignition system, and fuel system on your vehicle. Once your car engine is running, the alternator supplies the electricity needed for all vehicle systems and charges the battery to replace the electric energy used when starting a car.

Most electric vehicles have a traction battery which is in addition to the standard 12 volt battery that is used to start the car engine. Traction batteries also convert chemical energy to supply electrical energy but operate at higher voltages and often are monitored by the PCM (Powertrain Control Module).

Battery

When to replace a car battery?

  • Your car doesn’t start. A new battery has a specified capacity to provide power. This capacity is referred to as the cranking amps rating of the battery. As a battery ages, the actual amps that a battery can supply becomes lower than its original rating Once the cranking amps fall below a critical threshold, it will be difficult or impossible to start your car.
  • Battery or charging system warning light is illuminated. Should a battery or charging system warning light illuminate, a mechanic should perform a few basic tests to determine if a battery replacement is needed.
  • Electrical components don’t work. Once a battery has started to fail, and the voltage produced by the battery drops, then vehicle electrical components can malfunction, such as the security system. If you are experiencing electrical malfunctions, it’s a smart idea to have the battery tested.

How do mechanics replace the battery?

  • A temporary power source might be installed to avoid the possibility of losing radio presets or stored data in the PCM while the battery is out. When the battery is already completely dead, this step is unnecessary.
  • The vehicle’s negative cable is removed from the battery, followed by the positive cable. The battery tie down system is loosened and the old battery removed.
  • Cable ends and wiring are carefully inspected to ensure cleanliness and no corrosion. In some cases, corrosion can be extreme and the cable may need to be replaced or wiring repaired.
  • The new battery is installed and the tie down system is reinstalled. Anti-corrosion compound is applied to the battery terminals. The positive terminal is reconnected followed by the negative terminal.
  • Some vehicles, for example some models of BMW, VW, and Audi, may require PCM programming to input battery parameters. This step, performed using a specialized scan tool, is necessary to maximize battery life and prevent electrical system malfunctions.
  • The car is started and charging system output is measured and compared against the factory OEM specification to ensure that the new battery will properly recharge. Generally, charging output will be in the range of 13.8 to 14.8 volts but the exact specifications vary by make and model.

Is it safe to drive with a battery problem?

Yes, but if you have a weak battery you might be left stranded somewhere if the battery dies completely and you cannot start your car. A faulty battery may also needlessly overload the alternator and could adversely affect the operation of the vehicle’s electrical system, including the vehicle security system and the shift interlock.

When replacing the battery keep in mind:

  • The quality of the electrical connections to the battery posts is important. Connections must be clean, free of corrosion and properly tightened.
  • Batteries store a large amount of energy and if short-circuited a battery could explode and can create intense discharges that can damage your eyesight. Insulated tools should be used to attach cabling to battery terminals. Otherwise, the battery’s positive cable can be shorted to ground or the positive and negative posts can be directly shorted. Batteries can only be safely installed from a positive terminal to positive wiring and from a negative terminal to body ground. If the polarity is reversed damage will likely occur to the vehicle’s electrical system.
  • Generally, a car battery will have a service life of 4 to 7 years. If a load test on a battery reveals a significant reduction in the capacity of the battery to provide power, you should buy a new battery rather than wait for the old battery to fail completely.
  • Batteries should only be disconnected if the engine is off and the alternator is not running. Disconnecting a car battery while the alternator is running can cause a voltage spike that will damage sensitive electronic components in the vehicle, such as the PCM.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com