Best overall XS Power D3400 $419.99
Highest overall score (81/100) — the strongest balance of specs, value and recency in this group.
See on Amazon →Independent · sourced · Updated July 2026
Best Car Batteries (2026)
The best overall car battery is XS Power D3400 ($419.99). The best value car battery is Interstate MTX-94R/H7 AGM ($274.95). The cheapest is EverStart Maxx 35N at $90. 9 car batteries compared from $90 to $429.99 across 9 brands — every figure sourced, updated July 2026.
9 car batteries compared on the specs that matter and US price — ranked cheapest-first. Every spec and price links to its source and the date we captured it.
Our data Our pay-blind pick across the 9 car batteries we ranked is XS Power D3400 — the Platinum-tier leader on specs-per-dollar, never price or placement. The smart-money alternative is Interstate MTX-94R/H7 AGM ($275). Category Champions, as of July 2026.
Which car battery should you buy?
Three buyer-intent picks from the algorithmic ranking below — no paid placement.
As an Amazon Associate we earn from qualifying purchases. Prices verified 2026-07-13; live price may differ.
Key takeaways
- Lowest price: EverStart Maxx 35N at $90 (Consumer Reports lists this exact model, EverStart MAXX-35N (North), at "$90.00" in its Group 35 car-battery comparison (the "This Model" row). Used as typical US retail price, excluding any refundable core charge. No formal MSRP is published for the brand.).
- Typical price: from $90, median $277.47, up to $429.99 — across 6 priced.
- Tracked: 9 products across 9 brands, current through 2026-07-13.
- Compared on: Battery type, Bci group size, Cold cranking amps, Cranking amps ca, Reserve capacity min, Capacity ah.
Best by the numbers
Objective winners — each is the leader on one measured spec, with the figure. No subjective ranking.
- Lowest price: EverStart Maxx 35N ($90)
- Highest coldCrankingAmps: XS Power D3400 (1012 coldCrankingAmps)
- Highest crankingAmpsCa: XS Power D3400 (1150 crankingAmpsCa)
- Highest reserveCapacityMin: XS Power D3400 (160 reserveCapacityMin)
- Highest capacityAh: Interstate MTX-94R/H7 AGM (80 capacityAh)
Top 3 by quality
An algorithmic overall ranking from the data on this page — value for money, spec strength, and recency. 100% data-driven, no paid placement.
-
XS Power D3400 Quality score 81/100 Most powerful -
Interstate MTX-94R/H7 AGM Quality score 79/100 Best value -
ACDelco 48AGM Professional AGM Quality score 55/100 Best value
How we rank: Value 45% · Spec strength 35% · Recency 20%. Scores are computed only within this category from published specs and prices — never influenced by commissions or placement. Method & open data →
What to look for
How to read the comparison — what each key spec means and the range across these car batteries.
- Battery type — higher is better.
- Bci group size — higher is better.
- Cold cranking amps — higher is better (this group: 640 to 1012).
- Cranking amps ca — higher is better (this group: 875 to 1150).
- Reserve capacity min — higher is better (this group: 100 to 160).
- Capacity ah — higher is better (this group: 50 to 80).
Comparison
| Compare | # | Car Batterie | Price | Battery type | Bci group size | Cold cranking amps | Cranking amps ca | Reserve capacity min | Capacity ah | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  EverStart Maxx 35N | $90 | flooded | 35N | 640 | — | 100 | — | everstartco.com | |
| 2 | ACDelco 48AGM Professional AGM | $183.99 | AGM | 48 | 760 | 880 | 120 | 70 | scwholesalebatteries.com | |
| 3 | Interstate MTX-94R/H7 AGM | $274.95 | AGM | 94R/H7 | 850 | 1000 | 140 | 80 | interstatebatteries.com | |
| 4 | Optima RedTop 34/78 (8004-003) 1 review | $279.99 | spiral-wound-AGM | 34/78 | 800 | — | 100 | 50 | optimabatteries.com | |
| 5 | XS Power D3400 | $419.99 | AGM | 34 | 1012 | 1150 | 160 | — | 4xspower.com | |
| 6 |  Odyssey 34-PC1500T Extreme Series | $429.99 | AGM | 34 | 850 | 1050 | 135 | 68 | odysseybattery.com | |
| 7 |  Bosch S6 High Performance AGM S6585B | — | AGM | 48/H6 | 760 | 875 | 120 | 70 | boschautoparts.com | |
| 8 |  DieHard Platinum AGM H6 | — | AGM | 48/H6 | 760 | 950 | 120 | 70 | shop.advanceautoparts.com | |
| 9 | NAPA The Legend Premium AGM (BAT 9848) | — | AGM | 48 | 760 | 875 | 120 | 70 | web.archive.org |
Specs are as published by the manufacturer (or a reputable spec source where the official page was unavailable); prices are US launch MSRP. Full per-product records and all spec columns are in our open dataset.
Popular comparisons
Frequently asked questions
What is the cheapest car battery?
EverStart Maxx 35N is the cheapest at $90 (Consumer Reports lists this exact model, EverStart MAXX-35N (North), at "$90.00" in its Group 35 car-battery comparison (the "This Model" row). Used as typical US retail price, excluding any refundable core charge. No formal MSRP is published for the brand.), as of 2026-07-13.
How much does car batteries cost?
Across the 6 car batteries with a published price, the median is $277.47, ranging from $90 to $429.99, as of 2026-07-13.
Which car battery is best by the numbers?
Lowest price: EverStart Maxx 35N ($90). Highest coldCrankingAmps: XS Power D3400 (1012 coldCrankingAmps). Highest crankingAmpsCa: XS Power D3400 (1150 crankingAmpsCa).
How many car batteries are compared here?
9 car batteries across 9 brands, with US price and key specs, current through 2026-07-13.
What is the best overall car battery?
XS Power D3400 ($419.99) — Highest overall score (81/100) — the strongest balance of specs, value and recency in this group.
What is the best value car battery?
Interstate MTX-94R/H7 AGM ($274.95) — Most specification per dollar of any car batteries here at $274.95.
What is the most capable car battery?
DieHard Platinum AGM H6 — Leads this group on the measured specs.
More hardware comparisons
How we compiled this
Covers 12-volt automotive starting (SLI) batteries sold at US retail for passenger cars, trucks, and SUVs. Excludes motorcycle/powersports batteries, marine or golf-cart deep-cycle-only units, and any non-12V pack. Price is typical US street/retail price in USD (most battery brands publish no formal MSRP), excluding any refundable core charge. batteryType is the construction/chemistry, one of: AGM, flooded (conventional wet lead-acid), EFB, spiral-wound-AGM, or lithium-ion (LiFePO4). bciGroupSize is the BCI/DIN group-size designation exactly as published (e.g. "34", "48/H6", "94R/H7") as a string. coldCrankingAmps (CCA) in amps, rated at 0 degrees F (-18 C) per SAE/BCI. crankingAmpsCa in amps at 32 degrees F (0 C); null if not published. reserveCapacityMin is reserve capacity in minutes (25 A draw at 80 F down to 10.5 V); null if not published. capacityAh is nominal capacity in amp-hours at the 20-hour rate; null if not published. terminalType is the terminal layout, one of: top-post, side-post, dual (SAE plus side/GM), or stud. weightLbs is battery weight in pounds. warrantyMonths is the free-replacement warranty period in months (pro-rated periods excluded). maintenanceFree is a boolean, true when the battery is sealed and needs no electrolyte top-up. dimensionsInches is overall size as length x width x height in inches.
Last verified 2026-07-13. We re-check published specs and prices on a recurring cadence and update this page when they change.
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