Why won't my C20 Suburban battery stay charged?

A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a complimentary battery check at your local Firestone Complete Auto Care and learn more about your battery's charge.

What happens to my old C20 Suburban battery?

We recycle it! Nearly 100% of all lead-acid batteries are recyclable.

How much will replacing my Chevrolet C20 Suburban’s battery cost if I get a DieHard battery?

Get affordable prices on Chevrolet C20 Suburban batteries by using one of our limited-time battery deals. Plus, all DieHard car batteries come with a free replacement warranty and extra coverage with DieHard Assurance.

How long do car batteries last?

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 C20 Suburban’s battery post?

A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your C20 Suburban car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.

How do I clean corrosion off my C20 Suburban 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 C20 Suburban owner’s manual for instructions on how to do so.

Who sells C20 Suburban batteries near me?

You can shop for C20 Suburban batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.

Car Batteries for 1985 Chevrolet C20 Suburban

Get a New Chevrolet Battery

Get a New Chevrolet C20 Suburban Battery

Don't let a failing battery slow you down. Shop replacement batteries for 1985 Chevrolet C20 Suburbans today and schedule a quick installation at Firestone Complete Auto Care.

Shop Batteries

Battery Size & Replacement for 1985 Chevrolet C20 Suburban

Need more info about Chevrolet C20 Suburban batteries? Use this chart to find the right battery size and CCAs for your Chevrolet C20 Suburban.

Battery	Engine	Warranty		Cold Cranking Amps
75-2	V8/5.0L	Replacement 24 months	Performance months	650
75FT-3	V8/5.0L	Replacement 36 months	Performance months	700
78-AGM	V8/5.0L	Replacement 36 months	Performance months	740
34/78-4	V8/6.2L	Replacement 24 months	Performance months	800
78FT-2	V8/6.2L	Replacement 36 months	Performance months	800
78-AGM	V8/6.2L	Replacement 36 months	Performance months	740
75-2	V8/5.7L	Replacement 24 months	Performance months	650
78FT-2	V8/5.7L	Replacement 36 months	Performance months	800
78-AGM	V8/5.7L	Replacement 36 months	Performance months	740
75-2	V8/7.4L	Replacement 24 months	Performance months	650
75FT-3	V8/7.4L	Replacement 36 months	Performance months	700
78-AGM	V8/7.4L	Replacement 36 months	Performance months	740

BATTERIES
V8/5.0L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/5.0L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/5.0L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/6.2L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V8/6.2L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/6.2L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/5.7L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/5.7L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/5.7L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/7.4L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/7.4L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/7.4L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

Schedule an Appointment

Shopping for Chevrolet C20 Suburban Car Batteries

You can pretty much drive your Chevrolet C20 Suburban until you don't want to anymore. But your C20 Suburban's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. Don’t get stranded by your C20 Suburban’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A lagging starter, an illuminated battery or check engine light, bloated battery case, corroded battery terminals, or weak lights may all indicate that your battery is on its last leg.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Visit us for a complimentary battery check and, if needed, get your Chevrolet C20 Suburban a replacement battery. Car batteries are one of our many specialties! Our technicians are well-acquainted with Chevrolet’s service specs for C20 Suburban battery CCAs and reserve capacity. Get help identifying the type and size of battery that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your C20 Suburban?

We know what’s best for your Chevrolet C20 Suburban, which is why we only carry top-of-the-line replacement parts and batteries. Your C20 Suburban needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries go above and beyond and house the latest technology to satisfy the expanding power requirements of modern vehicles They're no ordinary battery, they're extraordinary. Go with a DieHard battery for your C20 Suburban and have the peace of mind that your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

After Buying 1985 Chevrolet C20 Suburban Battery

Did you recently have a new 1985 Chevrolet C20 Suburban car battery installed? Good thinking! You can give your new battery a head start with proper care and attention. Give your new battery a hand by decreasing the number of short trips you take, cleaning your battery posts, and avoiding radio and electronic component use when the engine is off.