Car Batteries for 2003 Chrysler 300M

2003 Chrysler 300M Battery Replacement & Size

Not sure what battery to get for your Chrysler 300M? Use the following chart to find information on Chrysler 300M battery size and cold cranking amps.

Battery Engine Warranty Cold Cranking Amps
MT-34 V6/3.5L Replacement 24 months Performance 60 months 700
MTP-34 V6/3.5L Replacement 30 months Performance 72 months 800


- Battery: MT-34

- Warranty: Replacement 24 months, Performance 60 months

- Cold Cranking Amps: 700


- Battery: MTP-34

- Warranty: Replacement 30 months, Performance 72 months

- Cold Cranking Amps: 800

Buy the Right Battery for Your Chrysler 300M

You can pretty much drive your Chrysler 300M until you don't want to anymore. But your 300M's battery? Don't count on it to last forever. 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 Chrysler 300M stranded. Pay attention to clues that your battery is on its way out. A sluggish engine start, a blinking battery or check engine light, bloated battery case, corrosion-covered posts, or weak lights can all be signs that your battery is on its last leg.

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. Drop in for a free battery check and, if needed, a replacement battery for your 2003 Chrysler 300M. Car batteries are one of our many specialties! Our technicians are well-acquainted with Chrysler’s service specs for 300M battery CCAs and reserve capacity. Get help figuring out the battery size that's best for your 300M, and schedule a weekday or weekend battery replacement service for your car.

Are Interstate Batteries Good for 300Ms?

Your Chrysler 300M deserves the best, which is why we exclusively carry the best. We replace over 700,000 batteries each year with Interstate Batteries, America’s #1 replacement battery brand. Interstate leads the way in terms of car battery reliability, performance, and innovation. Pop the hood of any Chrysler 300M and you may find a trusty Interstate Battery. Their tried and true products are commonly used in boom lifts, commercial trucks, UTVs, and boats! You need a car battery that's just as dependable as your 2003 Chrysler 300M. And Interstate Batteries are Outrageously Dependable®.

Making Your 300M’s New Battery Last

Got a new car battery installed in your 2003 Chrysler 300M? Good thinking! Now, help it last longer and stay charged by caring for it from the get-go. turning off all of the lights when you leave your vehicle, decreasing the number of short trips you take, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Commonly Asked 300M Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a battery question that's unique to your Chrysler 300M battery, pay us a visit. Our expert techs have the answers you need.

  • Why doesn’t my 300M battery stay charged? A battery that won't hold a charge is almost as good as dead. The battery may be too old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.
  • What happens to my old 300M battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
  • How much will replacing my Chrysler 300M’s battery cost? Chrysler 300M batteries can be affordable, especially when there's an available battery coupon. Plus, every Interstate Battery comes with a maintenance-free performance warranty and limited-time free replacement.

Get a Battery for Your Chrysler 300M

Don’t let a dead battery stop you. Shop replacement car batteries for your 2003 Chrysler 300M at Firestone Complete Auto Care.