Mazda MIATA Battery
Item #: MAR-8AM-U1R   |    In Stock

Mazda MIATA Battery
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Mazda MIATA Battery

Item #: MAR-8AM-U1R   |  In Stock


Price: $99.95
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Price: $99.95

Best Value
Free Shipping
1 Year Warranty
Brand New
100% Compatibility

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Product Specifications for Mazda MIATA Battery

BM Part #: MAR-8AM-U1R
Made In: U.S.A.
Voltage: 12 Volt
Capacity: 25 Ah
Type: AGM
Battery Size: Group U1R
Length: 7 3/4"
Width: 5 1/8"
Height: 7 1/4"
Cold Cranking Amps: 320 CCA
Shipping Weight: 25.00Lbs
Warranty: 1 Year
  • This Marathon Miata AGM battery fits all Mazda Miatas from 1990 through 2005 with correct polarity (battery location is in the trunk of the vehicle).
    • If your Miata has its battery located under the hood, this is not the correct replacement battery.
  • Fully Charged out of the box and easy to install.
  • Sealed, Maintenance-Free with a Vibration Resistant Design.
  • Environmentally friendly: 100% recyclable, leakproof, and spillproof.
  • Built-in vent tubes for O.E. (Original Eqiupment) vent hose attachment.
    • Vent tubes use 1/4" inch OD vacuum tubing.
  • BCI Designation: U1
Free Standard Shipping

Order today and receive free standard shipping on your Mazda MIATA Battery. Only valid in the contiguous 48 states and not valid with any other offer. Physical address required (No PO Boxes).

Premium quality absorbed glass mat technology (AGM) is ideal for the Mazda Miata. The Marathon Miata AGM Battery was designed for more than performance; it was designed for the enthusiast. Completely spillproof and leakproof; frequent replacement and high maintenance are over! The AGM technology increases power while improving driver and environmental safety. The key to this technology is the highly porous microfiber separators, which completely absorb and trap the electrolyte. Molded top and side connection terminals provide versatility, increased strength and durability. The Marathon AGM Battery provides the most advanced power and value in the industry.

Our replacement Miata batteries are sealed, maintenance free AGM rechargeable batteries. Due to their construction, they do not require any ventilation, can be mounted in any orientation, and do not require maintenance.

The battery features two vent tubes to attach your original vent hoses. These are not required for installation, but are offered to give you a place to attached your original hoses. Some modification may be necessary.

340 Reviews | 4.7 out of 5
5 stars (248)
4 stars (86)
3 stars (3)
2 stars (1)
1 star (2)
Would recommend this product.
What our Customers are saying
Arrived quickly and is working great
July 2, 2018
by on July 2, 2018

The only difference from the OEM battery was the 2 vent connections which were easily accommodated. Ordered on Sunday, delivered on Tuesday.

Would recommend to a friend?
Perfect replacement
June 3, 2018
by on June 3, 2018

As advertised. Just hope it lasts more than 3 years.
Great packaging.

Would recommend to a friend?
good pricing
May 30, 2018
by on May 30, 2018

after shopping around the local auto parts stores, I found that battery mart, had what I needed, and priced right, plus free shipping!

Would recommend to a friend?
1 Month with Battery.
May 27, 2018
by on May 27, 2018

Kicked right up, and is working just as it should for my 1991 BRG NA Miata. I had to cut the tubes and use zip ties in order to adapt the tubes to the battery exhaust holes which is not ideal, but I don't think they make the batteries that have the rectangle exhaust holes anymore. I don't know how long it will last, but I hope it is at least 3 years. I'm giving a 5 star rating to having a proper working battery again, but I may return in some way or another to vent my frustration if the battery doesn't last at least the 1 year it is under warranty.

Southern California (SoCal)
Would recommend to a friend?
Miata batteries #MAR-8AM-U1R
May 25, 2018
by on May 25, 2018

I'll let you in on a little secret...I did not buy these batteries for a Mazda Miata...I bought them for a 1969 Porsche 911. Turns out these batteries are well-suited to replacing the dual batteries that were original equipment on old Porsche 911's. The best news is that they are about half the cost of a genuine Porsche replacement and their AGM construction means there's no risk of spilled battery acid.

New Jersey
Would recommend to a friend?
High quality, excellent service
May 23, 2018
by on May 23, 2018

This is a battery for my 1993 Miata. It arrived fully charged in excellent packaging. I am fully satisfied. I recommparticular battery. end Battery Mart as well as this

Oxford, Maryland
Would recommend to a friend?
Miata battery
May 13, 2018
by on May 13, 2018

I am very pleased with my purchase of a battery for my Miata convertible. It arrived in a timely manner, in fact right on time for a warm weather top down cruise. Battery Mart has an easy online site, easy to navigate and it's easy to find the item you're looking for. I placed my order, got confirmation and the battery arrived on time. Thanks Battery Mart!

Would recommend to a friend?
The Mazda MIATA Battery has been cross-referenced to be compatible with or replace these OEM part numbers and models:
  • YearsMakeModelEngine
  • 1990MazdaMX-5 MiataL4 1.6L
  • 1991MazdaMX-5 MiataL4 1.6L
  • 1992MazdaMX-5 MiataL4 1.6L
  • 1993MazdaMX-5 MiataL4 1.6L
  • 1994MazdaMX-5 MiataL4 1.8L
  • 1995MazdaMX-5 MiataL4 1.8L
  • 1996MazdaMX-5 MiataL4 1.8L
  • 1997MazdaMX-5 MiataL4 1.8L
  • 1998MazdaMX-5 MiataL4 1.8L
  • 1999MazdaMX-5 MiataL4 1.8L
  • 2000MazdaMX-5 MiataL4 1.8L
  • 2001MazdaMX-5 MiataL4 1.8L
  • 2002MazdaMX-5 MiataL4 1.8L
  • 2003MazdaMX-5 MiataL4 1.8L
  • 2004MazdaMX-5 MiataL4 1.8L
  • 2005MazdaMX-5 MiataL4 1.8L
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Total for Both Items: $149.94