Why won't my 90 battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. It may be getting old. Or, you may have a habit of leaving your car doors open and the dome lights on during the night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead 90 battery?

We recycle it, taking care of both your car and the Earth.

What’s the cost of DieHard batteries for Audi 90s?

Audi 90 batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.

How long is a car battery good for?

You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.

Why is there white, crusty buildup on my 90’s battery post?

The white, crusty stuff that can accumulate around 90 car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.

How do I clean corrosion off my 90 vehicle battery?

To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your 90 owner’s manual for instructions on how to do so.

Where can I purchase 90 batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install 90 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

Car Batteries for 1991 Audi 90

Get a New Audi Battery

Get a Battery for Your Audi 90

Don’t let a dead battery stop you. Shop replacement car batteries for your 1991 Audi 90 at Firestone Complete Auto Care.

Shop Batteries

The Right Battery Size for a 1991 Audi 90

Need more info about Audi 90 batteries? Use this chart to find the right battery size and CCAs for your Audi 90.

Battery	Engine	Warranty		Cold Cranking Amps
41-2	L5/2.3L	Replacement 24 months	Performance months	650
T6	L5/2.3L	Replacement 36 months	Performance months	720

BATTERIES
L5/2.3L - Battery: 41-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
L5/2.3L - Battery: T6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 720

Schedule an Appointment

Buy the Right Battery for Your Audi 90

Sadly, your Audi 90 won't last forever. Neither will its battery. On average, auto batteries last anywhere from three to five years. You want to replace your 1991 Audi 90 battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, an illuminated battery or check engine light, swollen battery case, corroded battery posts, or weak lights can all signal that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if needed, a replacement battery for your 1991 Audi 90. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Audi-specific recommendations for 90 battery cold cranking amps and reserve capacity. Get help figuring out the battery size that's best for your 90, and schedule an appointment today for a quick car battery replacement.

Firestone Has DieHard Batteries for 90s

We only want what’s best for your Audi 90, which is why we carry just that. You need a reliable, durable and powerful battery in even the most extreme conditions. DieHard 90 batteries surpass expectations and house the latest technology to fuel the increasing power needs of new vehicles. A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your 90 and drive with confidence knowing that performance will be there when you're counting on it. That's the kind of battery we deliver.

After Buying 1991 Audi 90 Battery

Did you recently have a new 1991 Audi 90 car battery installed? Great job! Give your new car battery the best start with proper care. You can take care of your battery by decreasing the number of short trips you take, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked 90 Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have battery questions that are Audi 90-specific, stop by your nearest store. Our expert techs have the answers you need.

Why won't my 90 battery stay charged? A car battery that needs to be jump-started every time is as good as dead. It may be getting old. Or, you may have a habit of leaving your car doors open and the dome lights on during the night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my dead 90 battery? We recycle it, taking care of both your car and the Earth.
What’s the cost of DieHard batteries for Audi 90s? Audi 90 batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.
How long is a car battery good for? You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.
Why is there white, crusty buildup on my 90’s battery post? The white, crusty stuff that can accumulate around 90 car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.
How do I clean corrosion off my 90 vehicle battery? To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your 90 owner’s manual for instructions on how to do so.
Where can I purchase 90 batteries near me? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install 90 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.