Ideal Batteries — Car battery brands

Car battery brands compared

Car Battery Brands Compared

Twenty-one North American car battery brands side by side — who actually makes each one, the product lines it sells, the chemistries on offer and the free-replacement warranty the maker publishes. Facts only: no prices, no ratings, no rankings.

A car battery installed in a Toyota engine bay being checked by a mechanic — Whatever the label says, most car batteries come out of a handful of factories — this page maps the labels to the makers.

An AGM car battery installed in an engine bay — An AGM car battery in place under the hood. The battery pictured is a Delkor — a Clarios brand sold mainly in Asia-Pacific and Australia, not one of the brands compared below — shown as a general AGM illustration.

Who actually makes car batteries

Most North American car-battery labels come out of a small number of factories.

Clarios (formerly Johnson Controls Power Solutions) — the world's largest automotive battery maker; owns Optima and Varta, and manufactures DieHard and many retailer-label AGM batteries.
East Penn Manufacturing (Deka / MK Battery) — the largest single-site battery plant in the US (Lyon Station, Pennsylvania); makes its own Deka brand plus retailer labels including Duracell automotive at Batteries Plus and some NAPA and O'Reilly lines.
EnerSys — owns Odyssey and NorthStar; thin-plate pure-lead (TPPL) AGM specialist.
Stryten Energy — operates the Exide brand in North America (acquired Exide's Americas business in 2020) and also supplies some retailer programs.

That is why the same factory ships many labels: a retailer or carmaker sets the specification and the warranty, and one of these makers builds the battery that carries the label. A store brand's actual manufacturer can vary by group size and region, and makers do not always publicly confirm supply contracts — those cases are flagged in the entries below.

A small sealed 12V VRLA battery — A small sealed VRLA battery — the same valve-regulated construction family as automotive AGM, in miniature.

Master table — all 21 brands

One row per brand; the sections below carry the full detail behind each cell.

Warranty figures are the free-replacement period published by the maker or retailer, as found in October 2026 — except where a cell says prorated, defect or limited. Where a figure could not be confirmed from a maker or retailer page, it is marked unverified rather than filled in. Brand-level terms vary by line, model and market; the label on the specific battery governs.

Brand	Maker / parent	Main lines	Chemistries offered	Published warranty	Notes
Optima	Clarios	RedTop, YellowTop, BlueTop	AGM (spiral-wound); LiFePO4 in the powersports OrangeTop	RedTop 36 mo · YellowTop 36 mo · BlueTop 24 mo · OrangeTop (powersports) 60 mo · commercial use 12 mo	Spiralcell design and coloured tops; Clarios administers the warranty as manufacturer
Odyssey	EnerSys	Extreme Series (ODX), Performance Series (ODP), ODS powersports	AGM (TPPL)	Extreme, BCI/DIN engine-start: 4 yrs · Performance: 3 yrs (terms vary by use — see entry)	Thin-plate pure-lead plates; dual-purpose starting + deep-cycle
NorthStar	EnerSys	NorthStar PRO (NSB-AGM); marine/RV versions	AGM (TPPL)	PRO: 4 yrs car/light truck/SUV & commercial starting · 3 yrs personal marine/RV · 2 yrs emergency & non-starting cycling	Pure-lead AGM positioned alongside Odyssey; roots in telecom backup power
Interstate	Interstate Battery System of America — marketer/distributor; production contracted (Clarios and East Penn most commonly reported)	M, MT, MTP, MTX, MTX-AUX, MTZ	Flooded, AGM (EFB in marine variants)	M 18 mo · MT 24 mo · MTP 30 mo · MTX 36 mo · MTX-AUX 12 mo · MTZ 48 mo	Does not manufacture; no per-model maker list published. Costco-sold units carry Costco's own program terms
DieHard	Advance Auto Parts (owner); built by Clarios	Red, Silver, Gold, Platinum, Platinum AGM, EV	Flooded, AGM	Red 1 yr · Silver 2 yrs · Gold 3 yrs · Platinum 4 yrs · Platinum AGM 4 yrs · EV 4 yrs	Advance Auto Parts and Carquest only; a Sears name dating to 1967
EverStart	Walmart house brand; supply contracted (Clarios hosts the warranty document; East Penn also reported)	Value, Plus, Maxx, Platinum AGM	Flooded, AGM	Value 1 yr · Plus 2 yrs · Maxx 3 yrs · Platinum AGM 4 yrs	Walmart only; maker per SKU reported, not confirmed
Duralast	AutoZone house brand; contract-made (Clarios the primary maker most commonly identified)	Valucraft, Duralast, Duralast Gold, Platinum AGM, EFB	Flooded, EFB, AGM	Standard 2 yrs · Gold 3 yrs · Platinum AGM 3 yrs per AutoZone's pages (some third parties say 4 — the label governs)	AutoZone only; maker per SKU not published by AutoZone
ACDelco	General Motors parts brand; contract-made to GM specification	GM Original Equipment, Gold, Silver, Advantage	Flooded, AGM	Gold up to 42 mo (model-dependent) · Silver 30 mo (Canada chart; some US models 18 mo) · Advantage 18 mo	The OEM-correct choice for GM vehicles, through the dealer network
Motorcraft	Ford Motor Company parts brand; contract-made to Ford specification	Tested Tough PLUS, Tested Tough MAX	Flooded, AGM	PLUS: 18-mo free replacement, 84-mo limited · MAX: 36-mo free replacement, 100-mo limited	OEM-specified for Ford/Lincoln; the longest total limited term here, but only the first 36 months are free replacement
Bosch	Robert Bosch GmbH aftermarket brand; NA production under contract (maker unverified)	S3, S4, S5, S6 High Performance AGM	Flooded, AGM	S3 1 yr · S4 2 yrs · S5 3 yrs · S6 AGM 4 yrs; 3 yrs roadside assistance on S4–S6	European OEM heritage; the S-number tracks warranty length
XS Power	XS Power Batteries (Knoxville, Tennessee)	D Series; S Series / XP Series	AGM (lithium in separate audio/racing lines)	D Series: 3 yrs	The car-audio specialist — batteries specified by audio wattage
Antigravity	Antigravity Batteries LLC (California)	Automotive H-Series; ATX powersports; V-10 / Race	LiFePO4	Automotive: 5-yr prorated (3 yrs direct replacement + 2 yrs prorated) · Powersports: 3-yr prorated	RE-START built-in reserve; an H6 car battery is roughly 15 lb vs ~45–55 lb for lead-acid
Braille	Braille Battery (Sarasota, Florida)	Lightweight AGM B Series; Lithium Intensity; GreenLite; Super 16	AGM, LiFePO4	Small AGM 1 yr · Larger AGM 1 yr + 2nd yr prorated · Super 16 lithium 1-yr racing	Lightweight racing batteries; registration required within 60 days
Dakota Lithium	Dakota Lithium (founded in Seattle, Washington)	DL+ Dual Purpose; deep-cycle LiFePO4 range	LiFePO4	11-yr manufacturer defect warranty — a defect warranty, not free replacement for wear	The longest warranty term in this comparison; DL+ combines starting with deep-cycle
Exide	Stryten Energy (Exide's Americas business since 2020)	Marathon EFB, Marathon Max AGM, Edge AGM, Nautilus marine	Flooded, EFB, AGM	Marathon EFB 4 yrs · Edge AGM 48-mo free replacement · Marathon Max unverified	Founded 1888; claims invention of EFB technology (Europe, 2008)
VARTA	Clarios	Silver Dynamic AGM, Blue Dynamic EFB, Blue Dynamic / Black Dynamic	Flooded, EFB, AGM	No North American retail warranty program could be verified	Primarily an original-equipment brand in North America — the factory battery in many European cars
Yuasa	GS Yuasa (Yuasa Battery, Inc., Pennsylvania)	YuMicron, YuMicron CX, AGM YTX/YTZ/GYZ (US powersports)	Flooded, AGM (powersports)	US powersports commonly 1 yr (retailer listings); no NA automotive retail line	In the US, Yuasa is a powersports brand — the default OEM battery in Japanese motorcycles
Super Start	O'Reilly Auto Parts house brand; contract-made (Clarios and East Penn identified by industry sources)	Economy, Premium, Extreme, Platinum AGM	Flooded, AGM	Platinum AGM 3 yrs · Extreme 2–3 yrs by model · Economy 1 yr (retailer-reported) · Premium unverified	O'Reilly only; maker per SKU not published
NAPA The Legend	NAPA Auto Parts house brand; maker named per listing — East Penn or Clarios	NAPA Power, The Legend, The Legend Premium, The Legend Premium AGM	Flooded, AGM	Legend Premium AGM 36 mo (US listings; some Canadian listings 72 mo) · Flooded periods unverified	Unusual transparency: NAPA prints the maker (East Penn or Clarios) on the listing
Duracell Automotive	Duracell name licensed for automotive; Batteries Plus and Sam's Club units East Penn-built (reported)	Duracell Ultra flooded tiers incl. Gold Flooded; Platinum AGM	Flooded, AGM	Gold Flooded 36 mo · Other tiers vary by model (full tier table unverified)	Sold at Batteries Plus and Sam's Club
Deka	East Penn Manufacturing (its own brand)	Intimidator AGM	AGM (Intimidator line)	Not covered in this research	Sold mainly through independent dealers/installers; covered here in outline from the research notes — see the Deka entry

Optima

A Clarios brand, known for its Spiralcell (spiral-wound) AGM design and coloured tops.

Maker / parent	Optima is a brand of Clarios, LLC, which administers the Optima warranty as the manufacturer.
Where sold	Auto parts chains (AutoZone, Advance, O'Reilly, NAPA), Amazon and other online retailers, battery specialists.
Product lines	RedTop — starting battery for cars/trucks (AGM, spiral-wound). YellowTop — dual-purpose deep-cycle/starting (cars with heavy electrical loads, RV, marine). BlueTop — marine and RV starting and dual-purpose versions. OrangeTop — LiFePO4 lithium for powersports (not automotive).
Chemistries	AGM (spiral-wound) for automotive lines; LiFePO4 in the powersports OrangeTop.
Warranty	Free replacement, non-commercial, per Optima's official warranty page: RedTop 36 months · YellowTop 36 months (D31A/D31T commercial sizes: 24 months) · BlueTop 24 months · OrangeTop (powersports) 60 months · commercial use of the automotive lines 12 months.
Known for	Spiral-wound AGM construction, vibration resistance, and spill-proof mounting in performance, off-road and marine applications.

Odyssey

EnerSys's thin-plate pure-lead (TPPL) AGM line.

Maker / parent	EnerSys (EnerSys Energy Products Inc. is the warrantor). Batteries use thin-plate pure-lead (TPPL) AGM "dry cell" technology — flat pure-lead plates rather than lead-calcium alloy.
Where sold	Battery specialists and online retailers (Battery Guys, Summit Racing, Amazon), 4 Wheel Parts and performance/off-road retailers.
Product lines	Extreme Series (ODX) — top automotive/marine/powersports line, high cranking + deep cycle. Performance Series (ODP) — automotive line aimed at daily drivers and direct OEM-size fits. ODS — compact powersports sizes.
Chemistries	AGM (TPPL) only.
Warranty	Per EnerSys's published Odyssey/NorthStar warranty terms: Extreme (ODX), BCI/DIN sizes, engine-start use — 4 years · Extreme, non-BCI sizes, commercial/industrial/marine/automotive — 3 years; powersports/APU — 2 years · Performance (ODP) — 3 years for commercial/industrial/marine/automotive engine-start; 2 years APU.
Known for	Very high pulse cranking power, dual-purpose starting + deep-cycle capability, and long service life claims tied to pure-lead plates; widely used in performance, off-road, marine and military-adjacent applications.

NorthStar

EnerSys's other pure-lead AGM brand, with roots in telecom backup power.

Maker / parent	NorthStar is an EnerSys brand (EnerSys Energy Products Inc. warrants NorthStar PRO batteries alongside Odyssey). Like Odyssey, the automotive line is thin-plate pure-lead AGM. NorthStar also makes large telecom/industrial TPPL ranges (Red/Blue series — not automotive).
Where sold	Battery specialists and online retailers (Battery Guys, Batteries Plus-type specialty channels, Amazon).
Product lines	NorthStar PRO (NSB-AGM …) — automotive group sizes for car, light truck and SUV starting. Marine/RV versions (e.g., NSB-AGM-34M).
Chemistries	AGM (TPPL) only.
Warranty	Per EnerSys's published terms: PRO, personal use car/light truck/SUV and commercial engine-starting — 4 years · PRO, personal marine/RV — 3 years; emergency vehicles and non-starting cycling — 2 years.
Known for	Pure-lead AGM positioned alongside Odyssey, with roots in telecom backup power; the automotive line targets high-demand starting in standard group sizes.

Interstate

A marketer and distributor, not a manufacturer — one of the most recognized replacement-battery names in North America.

Maker / parent	Interstate Battery System of America — a privately held, Dallas-based marketer/distributor founded in 1952. Interstate does not manufacture its own automotive batteries; production is contracted to major manufacturers (Clarios and East Penn are the suppliers most commonly reported — Interstate does not publish a per-model maker list, so treat maker attribution as reported, not confirmed per SKU).
Where sold	Independent dealers and distributors, repair shops, Costco (Interstate-branded warehouse program), Interstate All Battery Center stores.
Product lines	M — value flooded line. MT — mid flooded line ("Mega-Tron"). MTP — premium flooded line ("Mega-Tron Plus"). MTX — AGM line. MTX-AUX — AGM auxiliary batteries for hybrids/EVs. MTZ — premium AGM line (longest warranty). Also: SRM marine/RV deep-cycle, HD commercial, and golf-cart lines.
Chemistries	Flooded and AGM (EFB appears in marine variants). No consumer lithium line.
Warranty	Free replacement, automotive, per Interstate's published warranty chart (Canada chart dated Mar 15 2025–Jul 14 2026; US terms follow the same structure): M — 18 months (then no coverage) · MT — 24 months, followed by a discount (pro-rata style) period to 60 months · MTP — 30 months, discount period to 72 months · MTX — 36 months · MTX-AUX — 12 months · MTZ — 48 months. Note: Costco-sold Interstate batteries carry Costco's own program terms, which have differed from Interstate's dealer terms (Costco moved its program to prorated terms in 2023 per press and retailer reporting) — check the warehouse receipt for the exact program.
Known for	Sold mainly through independent shops and dealers rather than big-box shelves, plus the Costco program.

DieHard

Advance Auto Parts' house brand, built by Clarios — a legacy American battery name dating to Sears (1967).

Maker / parent	DieHard is owned by Advance Auto Parts (acquired from Sears in 2019). Current DieHard automotive batteries are built by Clarios (Advance's lineup literature is Clarios-produced, e.g., the "xEV by Clarios" EV line).
Where sold	Advance Auto Parts and Carquest only.
Product lines	Red — entry flooded starting battery. Silver — mid flooded. Gold — upper flooded, uses "Stamped Grid Technology". Platinum — top flooded line. Platinum AGM — AGM for high electrical demand and start-stop vehicles. EV — AGM designed for electric vehicles' 12V systems ("xEV by Clarios" technology).
Chemistries	Flooded and AGM.
Warranty	Free replacement, per the published lineup sheet: Red 1 year · Silver 2 years · Gold 3 years · Platinum 4 years · Platinum AGM 4 years · EV 4 years.
Known for	Now Advance's house brand; the tier ladder is marketed on warranty length and stamped-grid corrosion resistance.

EverStart

Walmart's exclusive house brand — the volume/value end of the market.

Maker / parent	Walmart's exclusive house brand. Walmart does not manufacture batteries; supply is contracted — Clarios publishes and hosts the current EverStart warranty document, and East Penn is also widely reported as a supplier depending on group size and region. Treat maker attribution per SKU as reported, not confirmed.
Where sold	Walmart stores and Walmart.com only.
Product lines	Value (ValuePower) — entry flooded. Plus — mid flooded. Maxx — top flooded line. Platinum AGM — AGM line for start-stop and high-load vehicles. Marine/RV variants: Marine, Maxx Marine.
Chemistries	Flooded and AGM.
Warranty	Free replacement, per the EverStart warranty document hosted by Clarios: Value 1 year · Plus 2 years · Maxx 3 years · Platinum AGM 4 years · Marine 1 year · Maxx Marine 2 years.
Known for	The longest free-replacement periods at Walmart price points, with warranty service at any Walmart that sells EverStart.

Duralast

AutoZone's house brand, manufactured under contract.

Maker / parent	AutoZone's house brand (a registered AutoZone trademark), manufactured under contract — Clarios is the primary maker most commonly identified for Duralast automotive lines; some lines (e.g., EFB) have been Exide/Stryten-supplied per industry reporting. Maker per SKU is not published by AutoZone.
Where sold	AutoZone stores and AutoZone.com only.
Product lines	Valucraft — budget flooded (AutoZone's entry brand). Duralast — standard flooded. Duralast Gold — upper flooded. Duralast Platinum AGM — AGM for start-stop/high-demand vehicles. Duralast EFB — enhanced flooded for start-stop (availability varies). A "Platinum Elite" AGM tier with a longer warranty is listed by some third-party sources — unverified on AutoZone's own pages as of this research.
Chemistries	Flooded, EFB, AGM.
Warranty	Free replacement, per AutoZone's own product/vehicle pages: Duralast (standard) 2 years · Duralast Gold 3 years · Duralast Platinum AGM 3 years per AutoZone's current vehicle pages (some third-party sources say 4 years — conflicting; the battery label governs).
Known for	AutoZone's nationwide footprint, free in-store testing/installation model, and a simple flooded→Gold→Platinum AGM ladder.

ACDelco

General Motors' parts brand — the OEM-correct choice for GM vehicles.

Maker / parent	ACDelco is General Motors' parts brand. ACDelco does not manufacture its own 12V batteries; automotive batteries are produced by contract manufacturers to GM specifications (Clarios is the maker most commonly identified historically).
Where sold	GM dealerships (Chevrolet, GMC, Buick, Cadillac), independent ACDelco service centres, and parts retailers/online.
Product lines	GM Original Equipment (OE) — factory-spec replacements. Gold (Professional) — top aftermarket line, flooded and AGM versions. Silver (Professional) — mid line. Advantage — value line (the older Professional Red tier folded into this range).
Chemistries	Flooded and AGM.
Warranty	Free replacement, private car/light truck use: Gold — up to 42 months (many Gold models are 42-month; some are 30-month — model-dependent) · Silver — 30 months (Canada chart); some US dealer programs list 18-month Silver models · Advantage — 18 months. Figures vary by model and market — the label on the specific battery governs.
Known for	Sold as the factory-specified replacement through the GM dealer network.

Motorcraft

Ford Motor Company's parts brand (launched 1972) — the OEM-specified battery for Ford/Lincoln.

Maker / parent	Motorcraft is Ford Motor Company's parts brand. Batteries are manufactured to Ford specifications by contract makers; the maker per SKU is not published.
Where sold	Ford and Lincoln dealerships, plus some online parts channels.
Product lines	Tested Tough PLUS — standard line (flooded; some AGM sizes). Tested Tough MAX — premium line, flooded and AGM (BXT/BAGM part prefixes); authorized as the original-equipment replacement for Ford Motor Company vehicles.
Chemistries	Flooded and AGM.
Warranty	Per Ford's published battery-service information: Tested Tough PLUS — 18-month free replacement, 84-month limited (prorated) warranty · Tested Tough MAX — 36-month free replacement, 100-month limited warranty, unlimited mileage; replacement labour and towing covered when installed at a Ford/Lincoln dealership.
Known for	The longest total limited-warranty term (100 months) among mainstream labels — though only the first 36 months are free replacement.

Bosch

Robert Bosch GmbH's automotive aftermarket brand — European OEM heritage, a simple S-number ladder.

Maker / parent	Robert Bosch GmbH's automotive aftermarket brand. In North America, Bosch car batteries have historically been produced under contract (Clarios is the maker most commonly reported) — unverified from a current Bosch NA source; Bosch publishes the product program and warranties under its own name.
Where sold	Auto parts retailers and independent installers; the Bosch battery program was long anchored at Pep Boys in the US, and is also sold online.
Product lines	S3 — economy flooded, for older/lower-demand vehicles. S4 — mid flooded. S5 — premium flooded for high electrical demand. S6 High Performance AGM — AGM for start-stop and regenerative-braking vehicles. Bosch also sells LiFePO4 lithium for marine/RV and powersports in NA — not car starting.
Chemistries	Flooded and AGM (car lines).
Warranty	Free replacement, per Bosch's NA battery catalog: S3 1 year · S4 2 years · S5 3 years · S6 AGM 4 years. Free roadside assistance included for 3 years on S4, S5 and S6.
Known for	A common factory fit on German vehicles — and a simple S-number ladder where the number tracks warranty length.

XS Power

The car-audio specialist brand — batteries specified by how many watts of audio they can support.

Maker / parent	XS Power Batteries, an independent US company based in Knoxville, Tennessee. It states its AGM batteries are built with 99.99% virgin lead.
Where sold	Car-audio and performance retailers (Crutchfield, Sonic Electronix, Summit Racing), battery specialists, Amazon.
Product lines	D Series — AGM batteries in standard BCI group sizes (D3400, D6500, etc.); rated two ways: as a primary (starting) battery and as a higher-wattage secondary battery for audio systems. S Series / XP Series — additional AGM ranges for racing and supplemental power (line details beyond the D Series: partially verified). Lithium and capacitor-bank ("SuperBank") products for car audio.
Chemistries	AGM (core line); lithium in separate audio/racing lines.
Warranty	3 years on the D Series per XS Power's published product documentation and major retailer listings (e.g., Crutchfield lists the D3400 at "warranty: 3 years").
Known for	Also used as high-output starting batteries in group sizes.

Antigravity Batteries

A California lithium specialist, known for its patented RE-START reserve technology.

Maker / parent	Antigravity Batteries LLC, a California (Los Angeles area) company that designs lithium batteries; known for its patented RE-START technology — a built-in reserve that keeps enough charge to restart the vehicle, activated by a button/remote.
Where sold	Direct from Antigravity, plus performance/powersports dealers and online retailers (Summit Racing, Battery Mart, Amazon).
Product lines	Automotive H-Series (e.g., AG-H6-40-RS, AG-H7, in 40/60/80 Ah versions) — LiFePO4 car batteries in standard H5/H6/H7 group sizes with RE-START. ATX Series — LiFePO4 powersports batteries (ATX-12/20/30, HD variants). V-10 / Race — small lithium batteries for race cars.
Chemistries	LiFePO4 lithium only.
Warranty	Per Antigravity's own manuals: Automotive — 5-year prorated term, structured as 3 years direct replacement + 2 years prorated; registration within 30 days (or original receipt) required · Powersports (ATX/HD) — 3-year prorated term. Warranty excludes damage from lead-acid chargers and charging above 14.6 V (manual terms).
Known for	Lithium weight savings (an H6 car battery is roughly 15 lb vs ~45–55 lb for lead-acid) and RE-START — the "never stranded by a dead battery" pitch.

Braille Battery

A US performance-battery company built around lightweight batteries for racing.

Maker / parent	Braille Battery (Braille, LLC), a US performance-battery company based in Sarasota, Florida.
Where sold	Racing/performance retailers (Summit Racing, JEGS, Vivid Racing) and direct.
Product lines	Lightweight AGM (B Series) — small AGM batteries (B106, B129, B14115, B2015, B2317, B2618, B3121…) named partly by weight class, for race cars and weight-sensitive street cars. Carbon variants (C suffix) — carbon-case versions of B Series models. Lithium Intensity (i Series) — LiFePO4 in standard group sizes (e.g., i35X). GreenLite (G Series) — lithium for motorsports/powersports. Super 16 — 16-volt AGM and lithium batteries for drag racing. Fleet/commercial AGM (e.g., B6034, B7548, B10049) — larger AGM for trucks/fleets.
Chemistries	AGM and LiFePO4 lithium.
Warranty	Per Braille's published terms, product registration required within 60 days: Small AGM (B106, B129, B14115) — 1 year free replacement · Larger AGM (B2015, B2317, B2618, B3121, B6034, B7548, B10049…) — 1 year free replacement + second year prorated · Super 16 lithium — 1-year racing warranty. (Lithium Intensity automotive warranty period: unverified in this research.)
Known for	Lightweight racing batteries — a fixture in motorsport where pounds matter; also an OEM supplier to some performance-car programs.

Dakota Lithium

A US LiFePO4 company focused on marine, RV, overland and mobility markets.

Maker / parent	Dakota Lithium, a US lithium-battery company (founded in Seattle, WA).
Where sold	Direct from Dakota Lithium, outdoor/marine retailers, Amazon.
Product lines	DL+ (Dual Purpose) — LiFePO4 batteries that combine engine starting (up to 1,000 CCA equivalent on the 60 Ah/135 Ah models) with deep-cycle capacity, in group 24 sizes. Standard deep-cycle LiFePO4 range (12V 10–320 Ah) — house/RV/marine use, not starting-rated except where DL+ is specified.
Chemistries	LiFePO4 lithium only.
Warranty	11-year manufacturer defect warranty across its battery line (published by Dakota Lithium and its retailers) — the longest warranty term in this comparison; it is a defect warranty, not an 11-year free-replacement promise for wear.
Known for	The 11-year warranty and dual-purpose starting batteries aimed at boats, RVs and overland trucks, increasingly used as car/truck starting batteries in group 24 applications.

Exide

One of the oldest names in batteries (founded 1888), now Stryten Energy's flagship brand in North America.

Exide Technologies delivery trucks. The Exide brand in North America is operated by Stryten Energy.

Maker / parent	The Exide brand in North America is operated by Stryten Energy, which acquired Exide's Americas business in 2020. (Exide's separate European business trades as Exide Group.) Exide claims invention of EFB technology, first brought to market in Europe in 2008.
Where sold	Independent battery distributors and dealers, some retail programs (Exide also manufactures retailer-label batteries; per-SKU attribution is not published).
Product lines	Marathon EFB — enhanced flooded line for start-stop and high-load conventional vehicles. Marathon Max — AGM line. Edge — earlier flat-plate AGM line with "SureLife Graphite Technology" (still found at retail; being superseded by the Marathon naming in current Exide communications). Nautilus — marine line.
Chemistries	Flooded, EFB, AGM.
Warranty	Marathon EFB — 4-year warranty (per Exide's own launch announcement for the NA aftermarket) · Edge AGM — 48-month free replacement (per retailer product listings) · Marathon Max AGM warranty period — unverified from a maker page in this research.
Known for	In North America it is currently pushing EFB as a lower-cost alternative to AGM.

VARTA

Clarios's dominant European OE brand — in North America, mainly a factory-fit name.

Maker / parent	VARTA's automotive battery business is a Clarios brand (Clarios manufactures VARTA batteries worldwide, including for North American OEM fitments).
Where sold	In North America, VARTA is primarily an original-equipment brand — factory fit on many European vehicles — with limited consumer aftermarket presence through specialty and import channels. It does not have a mainstream US retail program comparable to Europe's.
Product lines	Silver Dynamic AGM — AGM for start-stop. Blue Dynamic EFB — enhanced flooded for start-stop. Blue Dynamic / Black Dynamic — conventional flooded tiers.
Chemistries	Flooded, EFB, AGM.
Warranty	European consumer programs publish line-dependent terms; no North American retail warranty program could be verified — marked unverified for NA.
Known for	Dominant OE brand in Europe; North American drivers most often meet VARTA as the factory battery in a German car.

Yuasa

GS Yuasa's US arm — in North America, a powersports brand rather than a car-battery line.

A genuine Yuasa YTX7A-BS powersports battery — the form North American buyers actually meet the Yuasa name in.

Maker / parent	Yuasa Battery, Inc. (Laureldale, Pennsylvania, operating since 1979) is the US arm of Japan's GS Yuasa Corporation, one of the world's largest lead-acid battery makers and an OEM supplier to Japanese automakers.
Where sold	In the US, Yuasa is a powersports brand — motorcycle, ATV/UTV, snowmobile, personal watercraft and scooter batteries sold through powersports dealers and online. Yuasa does not market a mainstream car-battery line in North America (GS Yuasa's automotive batteries are sold under Yuasa/GS brands mainly in Asia and other regions), so its car relevance here is as the OEM/powersports name drivers encounter on Japanese vehicles and bikes.
Product lines	YuMicron / Conventional — flooded powersports. YuMicron CX — calcium-upgraded powersports. AGM (YTX, YTZ, GYZ series) — factory-activated and bottle-supplied AGM powersports.
Chemistries	Flooded and AGM (powersports); lithium is not a US Yuasa powersports focus.
Warranty	US powersports batteries commonly carry a 1-year warranty (per retailer listings); no NA automotive warranty applies because there is no NA automotive retail line.
Known for	The default OEM battery in Japanese motorcycles and powersports equipment — "supplies more OEMs than its competitors" is its own long-running claim.

Super Start

O'Reilly Auto Parts' house brand — a store-brand ladder from Economy to Platinum AGM.

$A Super Start Platinum AGM car battery on a store rack$

A genuine Super Start Platinum AGM battery — O'Reilly's top house-brand line, with a 3-year free-replacement warranty per O'Reilly's own product pages.

Maker / parent	O'Reilly Auto Parts' house brand. Manufactured under contract; Clarios and East Penn are the makers identified by industry sources (maker per SKU is not published).
Where sold	O'Reilly Auto Parts stores and oreillyauto.com only.
Product lines	Economy (flooded), Premium (flooded), Extreme (flooded, higher CCA), Platinum AGM.
Chemistries	Flooded and AGM.
Warranty	Free replacement: Platinum AGM — 3 years (per O'Reilly's own product pages) · Extreme — 2–3 years by model (retailer-reported range) · Economy — 1 year (retailer-reported) · Premium — unverified from an O'Reilly page in this research.
Known for	O'Reilly's store-brand ladder; Platinum AGM is its start-stop/high-load answer.

NAPA The Legend

The independent-shop channel's default battery — with the maker disclosed per listing.

Maker / parent	NAPA Auto Parts' house brand ("NAPA The Legend"). NAPA's own product pages name the manufacturer as "East Penn or Clarios" depending on the model — i.e., NAPA buys from both and prints the maker on the listing.
Where sold	NAPA Auto Parts stores (US and Canada) and napaonline.com / napacanada.com.
Product lines	NAPA Power — value flooded (availability varies). The Legend — standard flooded. The Legend Premium — upper flooded. The Legend Premium AGM — AGM line.
Chemistries	Flooded and AGM.
Warranty	Free replacement: Legend Premium AGM — 36 months per US NAPA product pages. Note: Canadian NAPA listings for some Legend Premium AGM models show 72 months — terms differ by country/model; the label and the selling store's program govern. Flooded Legend/Premium periods: unverified from a NAPA page in this research.
Known for	The maker (East Penn or Clarios) disclosed per listing — unusual transparency for a house brand.

Duracell Automotive

A consumer-electronics name applied to car batteries, sold through Batteries Plus and Sam's Club.

Maker / parent	The Duracell name is licensed for automotive batteries (Duracell the company is a Berkshire Hathaway subsidiary). The batteries sold at Batteries Plus are East Penn-manufactured (Deka-built), per long-standing industry reporting and buyer documentation; Sam's Club's Duracell automotive line is likewise East Penn-supplied. Treat maker attribution as reported.
Where sold	Batteries Plus stores ("Duracell Ultra") and Sam's Club warehouses.
Product lines	Batteries Plus "Duracell Ultra": flooded tiers (incl. Gold Flooded, positioned as the premium flooded) and a Platinum AGM tier for start-stop/high-load vehicles.
Chemistries	Flooded and AGM.
Warranty	Free replacement: Gold Flooded — 36 months (per Batteries Plus's product page) · Other tiers vary by model — check the specific listing; full tier table unverified in this research.
Known for	Sold through a battery-specialist chain with installation services.

Deka

East Penn's own brand — covered in outline, because the research documents it in its notes rather than a full entry.

Maker / parent	Deka is East Penn Manufacturing's own brand — the maker behind retailer labels including Duracell automotive at Batteries Plus and some NAPA and O'Reilly lines.
Where sold	Mainly through independent dealers/installers rather than national retail.
Product lines	The Intimidator AGM line is East Penn's house equivalent of the retailer AGM batteries it manufactures.
Chemistries	AGM (Intimidator line, as documented in the research).
Warranty	Not covered in this research — no figure is published here rather than guessed.
Known for	It rounds out the manufacturer picture: one of the big four makers also sells under its own name.

Notes & conflicts

Where the sources disagreed, and what this comparison does not cover.

House-brand terms move: warranty terms for retailer house brands (Duralast, Super Start, NAPA, EverStart, Duracell) are set by the retailer and can change by model, region and date — the figures on this page reflect maker/retailer pages found in October 2026 and should be re-checked when you buy.
Duralast Platinum AGM: AutoZone's own pages say 3 years free replacement; several third-party roundups say 4. This page follows AutoZone.
ACDelco Silver: 30 months in GM Canada's chart; 18-month Silver models appear in US dealer programs.
NAPA Legend Premium AGM: 36 months in US listings vs 72 months on some Canadian listings.
Not covered with full entries: Continental, Fullriver/Full Throttle, Lifeline (marine/RV AGM), and warehouse/private labels beyond those listed.

Shop the major brands

Amazon searches for the brands above that sell widely online — confirm your group size with the car battery finder before ordering.

AGM · Clarios

Optima

Spiral-wound AGM — RedTop for starting, YellowTop for dual-purpose duty.

Search Optima ↗

AGM (TPPL) · EnerSys

Odyssey

Thin-plate pure-lead AGM — Extreme and Performance series for cars and trucks.

Search Odyssey ↗

Flooded & AGM

Interstate

The dealer-channel name — MT, MTP flooded and MTX/MTZ AGM lines.

Search Interstate ↗

Flooded & AGM · GM

ACDelco

GM's parts brand — Gold, Silver and Advantage lines in factory sizes.

Search ACDelco ↗

Flooded & AGM

Bosch

The S3–S6 ladder, up to the S6 High Performance AGM for start-stop vehicles.

Search Bosch ↗

As an Amazon Associate, Ideal Batteries earns from qualifying purchases. Amazon product links use our affiliate tracking ID. Availability and compatibility can change; verify every specification on the seller page before ordering.

Compiled October 2026 from maker and retailer documents: Optima's official warranty page; EnerSys's published Odyssey/NorthStar warranty terms; Interstate's published warranty chart (Canada chart dated Mar 15 2025–Jul 14 2026); Advance/Clarios's DieHard lineup sheet; the EverStart warranty document hosted by Clarios; AutoZone, Ford, Bosch, O'Reilly and NAPA product and program pages; and retailer listings where an entry says so. No prices, star ratings or "best brand" claims are included, by design.

Photo credits

Engine bay battery check: Azorbli, Wikimedia Commons, CC BY-SA 4.0.
Delkor AGM battery installed: Ywpop7, Wikimedia Commons, CC BY-SA 4.0.
Sealed VRLA battery: Dudinyûl, Wikimedia Commons, CC BY-SA 3.0.
Exide Technologies trucks: MobiusDaXter, Wikimedia Commons, CC BY-SA 3.0.
Yuasa YTX7A-BS battery: Solomon203, Wikimedia Commons, CC BY-SA 4.0.
Super Start Platinum battery: TaurusEmerald, Wikimedia Commons, CC BY-SA 4.0.