Car Batteries for 2003 Infiniti FX45

2003 Infiniti FX45 Battery Replacement & Size

Not sure what battery to get for your Infiniti FX45? Use the following chart to find information on Infiniti FX45 battery size and cold cranking amps.

Battery Engine Warranty Cold Cranking Amps
MT-35 V8/4.5L Replacement 24 months Performance 60 months 570
MTP-35 V8/4.5L Replacement 30 months Performance 72 months 640
MTX-35 V8/4.5L Replacement 38 months Performance 36 months 650
BATTERIES

V8/4.5L

- Battery: MT-35

- Warranty: Replacement 24 months, Performance 60 months

- Cold Cranking Amps: 570

V8/4.5L

- Battery: MTP-35

- Warranty: Replacement 30 months, Performance 72 months

- Cold Cranking Amps: 640

V8/4.5L

- Battery: MTX-35

- Warranty: Replacement 38 months, Performance 36 months

- Cold Cranking Amps: 650

Shopping for Infiniti FX45 Car Batteries

Your FX45 doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your Infiniti FX45 stranded. Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, an illuminated check engine light or battery signal, bloated battery case, corroded battery terminals, or faded headlights can all signal that your battery is waving goodbye.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Drop in for a free battery check and, if necessary, a battery replacement to help keep your 2003 Infiniti FX45 running! Car batteries are one of our many specialties! Our expert technicians understand Infiniti service recommendations for FX45 car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that's best for your FX45, and schedule a weekday or weekend battery replacement service for your car.

Why Choose an Interstate Battery for Your FX45?

Your Infiniti FX45 deserves the best, which is why we exclusively carry the best. We install more than 700,000 car batteries a year using outrageously dependable Interstate Batteries. Interstate has been a leader in car battery reliability, charge capacity, and technology. That’s why it’s unsurprising to find an Interstate Battery in the engine of a Infiniti FX45. Their entire line of powerful offerings can be found in industrial lifts, commercial trucks, UTVs, and fishing boats. To run optimally, your 2003 Infiniti FX45 requires a dependable battery. That’s why you should choose Interstate Battery. Their products are Outrageously Dependable®.

Making Your FX45’s New Battery Last

Did you recently have a new 2003 Infiniti FX45 car battery installed? Good thinking! Give your new car battery the best start with proper care. Give your new battery a hand by cutting back on unnecessary short trips, keeping the battery posts corrosion-free, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your FX45 Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a FX45-specific battery question, stop by your nearest store. Our technicians have the answers.

  • Why doesn’t my FX45 battery stay charged? A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a free battery test at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
  • What do you do with my old FX45 battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
  • How much will replacing my Infiniti FX45’s battery cost? Infiniti FX45 batteries can be affordable, especially when there's an available battery coupon. The best part is, every Interstate Battery has both a maintenance-free performance warranty and a limited-time free replacement.

Get a New Infiniti FX45 Battery

Don't let a failing battery slow you down. Shop replacement batteries for 2003 Infiniti FX45s today and schedule a quick installation at Firestone Complete Auto Care.