Car Battery Replacement at your home or office in Los Altos.

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Average rating from customers who
received a Battery Replacement.
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$179.99 - $275.98

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.

Average rating from customers who
received a Battery Replacement.
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Recent Car Battery Replacement reviews in Los Altos

Excellent Rating


YourMechanic Car Battery Replacement Service in Los Altos

Average Rating

5/5

Number of Reviews

6

Rating Summary
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Honorio

17 years of experience
745 reviews
Honorio
17 years of experience
Honorio was great but the fact that the service, people, whoever they were, gave him the wrong battery is inexcusable. Then when he called in to discuss the problem, the women on the phone had a hard time dealing with the situation. This was a horrible waste of my time and his. Also, there is no place on the order form to make changes. I needed to change the contact phone and I for the service, and I couldn't.
My initial diagnosis was incorrect and Honorio caught it saving me more than $200.

Emmette

34 years of experience
282 reviews
Emmette
34 years of experience
My wife met with Emmette and found him absolutely wonderful!
Prompt courteous and professional - Highly recommend

Alex

4 years of experience
31 reviews
Alex
4 years of experience
Very personable and a great communicator.

Alexander

27 years of experience
45 reviews
Alexander
27 years of experience
Alexander was great. I would go to him again for my car services and recommend him to friends

Jeffrey

8 years of experience
7 reviews
Jeffrey
8 years of experience
Brilliant !

Tom

40 years of experience
205 reviews
Tom
40 years of experience
Very professional and customer service oriented! Highly recommended!!!

Russell

6 years of experience
1 reviews
Russell
6 years of experience
First time user of the site. Russell was early for our appointment, which I was truly impressed about. He was professional and kind. He was efficient and quick with the fix and inspections. I would highly recommend him and work with him again regarding my car.

Chris

14 years of experience
403 reviews
Chris
14 years of experience
Great attitude, friendly, prompt, intelligent and respectful. This was first experience using the system. Hope they are all equal to Chris.

Trevor

20 years of experience
155 reviews
Trevor
20 years of experience
Chill dude. All went smoothly.

Charles

22 years of experience
21 reviews
Charles
22 years of experience
Charles came to replace my battery, he was on time, quick, and I would use him again.


How much does Car Battery Replacement cost in Los Altos?

It depends on the type of car you drive and the auto repair shop you go to in Los Altos. Our mechanics in Los Altos 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 Los Altos.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2014 Jeep Cherokee $194 $114.33 $79.99 12% $221.83
2004 Chevrolet Epica $252 $172.49 $79.99 9% $279.99
2009 Toyota Tundra $198 $117.92 $79.99 12% $225.42
2014 Cadillac CTS $206 $126.20 $79.99 11% $233.70
2005 Lexus RX330 $191 $111.24 $79.99 12% $218.74
2013 Porsche Boxster $249 $168.84 $79.99 9% $276.34

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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

GET A QUOTE FOR YOUR CAR

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.

1-800-701-6230 · hi@yourmechanic.com