Car Batteries & Electrical Repair Near You in San Antonio, TX

The car battery plays a vital role in starting your engine and storing power generated by the alternator. It also powers all secondary electrical systems such as lights, the radio, power windows and seats. The battery is the heart of your vehicle, so it's crucial to monitor its condition and replace it promptly if it malfunctions.

When should I replace my car battery?

When your car battery is weakened or completely dead, identifying the issue is usually straightforward. A car battery needs replacing when its capacity falls below 12 volts, a common occurrence for most batteries after three to seven years of use.

Here are a few indicators that your car battery may require replacement:

• Difficulty Starting the Car: As a battery ages, its ability to provide sufficient power decreases. When the cranking amps drop below a critical threshold, starting your car becomes challenging or impossible.
• Your battery won’t accept a charge: You hear rapid clicks instead of your engine cranking -- and jump-starting doesn’t help. You may need a new battery to get rolling again.
• Malfunctioning Electrical Components: As a battery weakens and its voltage decreases, vehicle electrical components may malfunction, such as the security system. If you encounter electrical issues, it's advisable to have the battery tested promptly.
• Battery or Charging System Warning Light: If the battery or charging system warning light illuminates, it's essential to have a mechanic conduct basic tests to assess if a battery replacement is necessary.

How long does it take to replace a car battery?

Midas at 4255 N Foster Rd typically completes a car battery replacement in 20-30 minutes for most vehicles. Our service involves cleaning the battery tray and terminals to remove battery acid and debris. We also ensure the proper recycling of your old battery.

The alternator is a vital component of a vehicle's charging system, working in conjunction with the battery and the voltage regulator. Together, the alternator and battery produce power for the electrical parts of your vehicle, including the air conditioning system and headlights.

What are the signs and symptoms of a bad alternator?

Here are some common signs of a bad alternator:

• Healthy Battery Unable to Hold a Charge: Before replacing a seemingly dead battery, it's advisable to have it tested. A malfunctioning alternator may fail to recharge the battery during operation.
• Illuminated Indicator Light: This includes the battery light, indicating potential alternator issues.
• Dimming or Weak Lights, Particularly at Night: If the lights brighten with an increase in RPM, it may suggest an alternator problem.
• Unusual Noises: A problematic alternator belt or pulley might produce a squealing sound, while issues with internal bearings can cause grinding or growling noises.
• Burning Smell: A smell of burning could indicate problems with the alternator's belt or pulley.

Your vehicle’s starter is a motor that, when powered by electricity from the vehicle's battery, engages the flywheel ring gear and cranks the engine. When the driver turns the key to start the engine, a small amount of electricity is sent to the starter solenoid from the battery.

When should I consider replacing my starter?

There isn't a universal replacement schedule for a car starter, and you might never have to replace the original part. However, here are some indicators that your starter might need replacement:

• The engine fails to turn over, particularly if you hear a loud click instead (and your battery is in good condition).
• The engine doesn't crank consistently (and your battery is in good condition).
• The starter continues to grind throughout your drive (indicating it doesn't disengage properly).