1985 Porsche 911 Batteries

1985 Porsche 911 Battery Replacement & Size

Need more info about Porsche 911 batteries? Check the chart to find the right car battery size and cold cranking amps for your 911.

Battery Engine Warranty Cold Cranking Amps
MT-49/H8 H6/3.2L Replacement 24 months Performance 60 months 900
MTP-49/H8 H6/3.2L Replacement 30 months Performance 72 months 900
MTX-49/H8 H6/3.2L Replacement 36 months Performance 36 months 900
MT-49/H8 H6/3.3L Replacement 24 months Performance 60 months 900
MTP-48/H6 H6/3.3L Replacement 30 months Performance 72 months 760
MTX-48/H6 H6/3.3L Replacement 36 months Performance 36 months 760
BATTERIES

H6/3.2L

- Battery: MT-49/H8

- Warranty: Replacement 24 months, Performance 60 months

- Cold Cranking Amps: 900

H6/3.2L

- Battery: MTP-49/H8

- Warranty: Replacement 30 months, Performance 72 months

- Cold Cranking Amps: 900

H6/3.2L

- Battery: MTX-49/H8

- Warranty: Replacement 36 months, Performance 36 months

- Cold Cranking Amps: 900

H6/3.3L

- Battery: MT-49/H8

- Warranty: Replacement 24 months, Performance 60 months

- Cold Cranking Amps: 900

H6/3.3L

- Battery: MTP-48/H6

- Warranty: Replacement 30 months, Performance 72 months

- Cold Cranking Amps: 760

H6/3.3L

- Battery: MTX-48/H6

- Warranty: Replacement 36 months, Performance 36 months

- Cold Cranking Amps: 760

Shopping for Porsche 911 Car Batteries

Sadly, your Porsche 911 won't last forever. Neither will its battery. The average car battery lasts three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your Porsche 911 stranded. Pay attention to clues that your battery is on its way out. A lagging starter, an illuminated check engine light or battery signal, swollen battery case, corrosion-covered posts, or faded headlights may all indicate that your battery is waving goodbye.

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. Drop in for a free battery check and, if needed, get your Porsche 911 a replacement battery. Car batteries are one of our many specialties! Our technicians are well-acquainted with Porsche’s service specs for 911 battery CCAs and reserve capacity. Get help choosing the battery size that matches your vehicle, and schedule a weekday or weekend battery replacement service for your car.

Are Interstate Batteries Good for 911s?

Your Porsche 911 deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. Our technicians install over 700,000 batteries/year using Interstate Batteries, America’s #1 replacement battery brand. Interstate leads the way in terms of car battery reliability, power, and innovation for many years. Pop the hood of any Porsche 911 and you may find a trusty Interstate Battery. Their entire line of powerful offerings can be found in forklifts freightliners, UTVs, and boats! Your 1985 Porsche 911 needs a reliable battery to run optimally. And Interstate Batteries are Outrageously Dependable®.

After Buying 1985 Porsche 911 Battery

Did you recently have a new 1985 Porsche 911 car battery installed? Great job! You can give your new battery a head start with proper care and attention. Help extend your car battery’s life 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.

Top 911 Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a battery question that's unique to your Porsche 911 battery, stop by your nearest store. Our expert techs have the answers you need.

  • Why won't my 911 battery stay charged? A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you may have been leaving your car doors ajar and the lights on overnight. Stop by for a complimentary battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.
  • What do you do with my old 911 battery? We recycle it, taking care of both your car and the Earth.
  •  How much do Porsche 911 batteries cost? You can find affordable 911 batteries by using one of our car battery coupons, when available. And, all Interstate Batteries have a limited-time free replacement and performance warranty.

Porsche 911 Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 1985 Porsche 911 at Firestone Complete Auto Care.