Interstate Batteries are sold by Interstate Battery System of America, Inc., a privately held company founded in 1952 and headquartered in Dallas, Texas.
Interstate does not manufacture batteries itself; it partners with major battery producers to have its products made to its own specifications, then markets and distributes them through an independent dealer and retail network.
The primary manufacturing partner behind most Interstate automotive batteries is Clarios, formerly known as Johnson Controls Power Solutions and the world’s largest producer of automotive batteries.
Interstate Battery System International remains privately held and family-influenced, with third-generation family members involved in leadership since founder John Searcy retired in 1978.
The company claims approximately 98% of its automotive batteries are made in the United States, at facilities in Louisiana, Georgia, and Southern California operated by its production partners.
Interstate distributes its batteries through a network of independently owned Interstate All Battery Center stores, franchised service locations, and automotive shops across all 50 states and Canada.
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Who Actually Manufactures Interstate Batteries?
Interstate Batteries is a marketing and distribution company, not a battery factory. Its core function is to define performance specifications, contract with manufacturers to build batteries to those standards, and then move product through its nationwide distribution network.
Clarios is Interstate’s primary production partner. Headquartered in Milwaukee, Wisconsin, Clarios was formerly the Power Solutions division of Johnson Controls before being acquired by Brookfield Business Partners in 2019 for approximately $13 billion.
Clarios now operates as a standalone battery company producing roughly 150 million batteries per year globally.
Clarios manufactures batteries for dozens of different brands and retailers, making it the single most important production entity behind the American automotive battery market.
Beyond Interstate, Clarios also makes batteries sold under the DieHard, Optima, Varta, and various store-brand names.
Exide Technologies has historically served as a secondary supplier for certain Interstate battery models, particularly for deep cycle and marine applications.
However, Exide filed for bankruptcy multiple times and its capacity has shrunk significantly, making Clarios the dominant production partner for Interstate’s core automotive line.
Where Are Interstate Batteries Made?
The factories that produce Interstate-branded batteries are located primarily in the United States.
Clarios operates battery manufacturing plants in Monterrey, Mexico for certain markets, but the domestic U.S. production facilities in Louisiana, Georgia, and Southern California are the primary source for batteries sold under the Interstate name in North America.
Interstate’s claim of 98% domestic production refers specifically to its lead-acid automotive battery lines.
For specialty formats including lithium-ion and advanced AGM batteries for newer vehicles, Interstate sources from additional partners including certain Asian suppliers, with quality oversight coordinated through the company’s Texas-based research and development center.
Lead-acid battery manufacturing is a relatively stable domestic industry in the United States because the heavy weight of batteries makes global shipping expensive.
Most automotive lead-acid batteries sold in America are made in America regardless of brand, which gives the entire category a genuine domestic production claim that most consumer goods cannot match.
Is Interstate Battery the Same as Clarios or Johnson Controls?
No. Interstate Battery System of America is a completely separate, privately held company from Clarios and Johnson Controls. The relationship is purely that of a customer and a contract manufacturer.
Johnson Controls divested its battery business in 2019 when that division became Clarios. Johnson Controls itself is a publicly traded building technology company whose battery history is now entirely in Clarios’s hands. Interstate did not change ownership or structure when that transaction happened.
Interstate Battery System of America remains what it has always been: an independent private company that markets batteries made by outside manufacturers under contract. Its brand, dealer network, and marketing operation are entirely its own.
Interstate Batteries vs. DieHard: Which Is Better?
Interstate and DieHard are two of the most recognized automotive battery brands in the United States.
Both share Clarios as their primary manufacturing source, which means both are built on the same production lines with the same core materials at the same U.S. facilities in many cases.
The differences come down to distribution channel, warranty structure, and retail availability. Interstate Batteries are sold through independent shops, Interstate All Battery Center franchises, and professional automotive service centers. DieHard is sold exclusively through Advance Auto Parts retail stores.
Professional mechanics and fleet managers have historically preferred Interstate for its dealer support network and the fact that it is available through local independent shops rather than a single big-box chain.
DieHard carries more brand recognition with retail consumers who buy their own replacement battery and install it themselves.
On raw performance, independent battery tests consistently show both brands performing comparably in cold cranking amps and reserve capacity for standard lead-acid applications. Neither has a decisive real-world advantage in everyday use.
Interstate Batteries vs. Optima: Premium vs. Value
Optima is a premium AGM battery brand also owned by Clarios, making it another member of the same manufacturing family as Interstate.
Optima batteries use a spiral cell construction that delivers superior vibration resistance, faster recharging, and longer cycle life compared to standard flat-plate lead-acid batteries.
Interstate’s standard automotive batteries use conventional flat-plate construction and are designed to cover the replacement needs of the mass market at a competitive price.
Interstate does offer AGM battery options in its lineup for vehicles with start-stop systems and higher electrical demand, but these are priced below Optima’s premium tier.
For everyday passenger vehicle battery replacement, Interstate represents excellent value with a strong professional installer backing and genuine domestic manufacturing.
Optima makes more sense for performance vehicles, boats, RVs, and situations involving frequent deep discharge cycles where the spiral cell chemistry earns its price premium.
Interstate Battery Group Size Chart and What Fits Your Car
Battery group size is a standardized numbering system that defines the physical dimensions, terminal location, and cable polarity orientation of a battery.
Common group sizes in the Interstate lineup include Group 24, Group 34, Group 35, Group 47, Group 48, Group 51R, Group 65, and Group 75.
Group 35 covers a wide range of Japanese-brand vehicles including Honda, Subaru, Nissan, and Toyota models. Group 47 and Group 48 cover the majority of modern European vehicles.
Group 65 and Group 75 cover many full-size American trucks and SUVs with high electrical demand from accessories and trailer wiring.
Interstate provides an online fitment guide and its dealer network can quickly identify the correct group size for any vehicle. Most Interstate All Battery Center locations can test an existing battery and install a replacement in under 30 minutes.
Frequently Asked Questions About Interstate Batteries
Are Interstate Batteries made in the USA?
Interstate claims approximately 98% of its automotive batteries are made in the United States at Clarios-operated facilities in Louisiana, Georgia, and Southern California. Lead-acid battery manufacturing has remained largely domestic in the U.S. because the weight of finished batteries makes long-distance international shipping uneconomical.
How long do Interstate Batteries last?
Most Interstate automotive batteries carry a free replacement warranty of 18 to 36 months depending on the model, with a pro-rated warranty extending beyond that. Real-world battery life typically runs between three and five years depending on climate, driving patterns, and the electrical demands of the specific vehicle. Hot climates shorten battery life significantly because heat accelerates internal plate corrosion.
Where can I buy an Interstate Battery near me?
Interstate Batteries are available at Interstate All Battery Center franchise locations, independent automotive service shops, and many car dealerships that carry Interstate as their preferred replacement brand. They are less common at chain auto parts retailers like AutoZone or O’Reilly, which typically carry competing brands. For other battery brand comparisons, see Who Makes EverStart Batteries and Who Makes NAPA Batteries.
I am Jack Neel, a mechanical engineer, researcher, and writer. I created this website to share my knowledge about different brands and products with you. I research the manufacturers behind the brands and provide you with the information you need to make smart buying decisions.