Super Start Wins the Group 65 Cranking-Value Test

For a flooded Group 65 battery, Super Start Value is the better-supported frugal buy: its $100 test sample produced 827 amps at 0°F, 302 amps more than the $79 EverStart Value. That equals about $0.121 per tested amp versus $0.150, making the cheapest EverStart more expensive per unit of measured cold output in the entry-level matchup. The exception is EverStart Platinum AGM, which essentially tied Super Start Platinum in the load test while costing $71 less (Project Farm’s 2026 Group 65 test).

This is a model-specific verdict, not a permanent brand ranking. Project Farm tested one purchased sample of each battery. The comparison did not establish production consistency, multi-year service life, real-world failure rates, cycle durability, or warranty satisfaction.

Why The Cheapest EverStart Became The Default Advice

The longstanding budget argument for EverStart is reasonable. Car batteries sold under different store brands may share large suppliers, and paying for a premium badge does not guarantee proportionally better starting performance or service life. Walmart also made the low-cost battery easy to find and replace.

Project Farm’s earlier advice captured that consensus directly: buy the cheapest Walmart battery rather than paying heavily for warranty tiers that may not return equivalent value (the earlier Walmart battery comparison). That remains a sensible warning against assuming that price, branding, or a longer headline warranty automatically buys a better battery.

The new Group 65 measurements overturn only the narrower claim that the lowest sticker price necessarily delivers the most cranking power for the money. The $21 price increase from EverStart Value to Super Start Value bought 302 additional measured amps at 0°F. In this specific entry-level comparison, paying less at checkout meant paying more per tested amp.

The broader consensus is also right about one point: a single new-battery bench test cannot tell us which battery will last longer. The evidence supports a cold-output and load-test comparison, not a lifespan forecast.

Edit the test figures or filter by construction; the result identifies the lowest cost per tested 0°F amp.

The Nine Group 65 Batteries Tested

The 2026 comparison covered four Walmart EverStart batteries and five O’Reilly Super Start batteries. Seven were conventional flooded lead-acid models; the two Platinum products were AGM batteries.

Test-time prices ranged from $79 to $189 for EverStart and from $100 to $260 for Super Start. These are historical test prices, not current retail quotes. Prices, model numbers, inventory, ratings, warranties, and private-label sourcing can change (The Drive’s test summary).

The reported procedure included ambient voltage and cranking-output measurements, electronic internal-resistance and state-of-health readings, a 15-second carbon-pile load, testing after chilling the batteries to 0°F, and reserve-capacity testing. Final reserve-capacity figures were not available in the supplied test record, so they cannot be used in this comparison.

Electronic state of health is a tester-generated estimate, not a direct measure of remaining service life. Even so, the out-of-box pattern was notable: all three EverStart flooded samples registered between 84% and 88% state of health, while EverStart Platinum AGM registered 100%. Exact individual percentages within that flooded range were not provided in the supplied material.

Super Start Led Every Flooded Group 65 Load Comparison

The four flooded Super Start samples retained more voltage in the carbon-pile test than all three flooded EverStart samples. Super Start ranged from 10.53 to 10.83 volts; EverStart ranged from 9.99 to 10.15 volts.

That was a relative advantage, not a pass-fail finding. Every battery in the nine-model test, including the EverStart flooded products, remained above the stated 9.6-volt passing threshold.

The 0°F readings produced the same brand-level pattern among the flooded samples:

The three EverStart flooded samples returned lower 0°F tester readings than their advertised CCA numbers. All four Super Start flooded samples returned readings above their advertised ratings under the reported procedure. These bench readings are not standardized manufacturer CCA certifications, and one sample cannot establish how every battery carrying the same label will perform.

The entry-level comparison is the strongest value result. EverStart Value cost $79 and produced 525 tested amps at 0°F. Super Start Value cost $100 and produced 827 amps. Dividing price by reported cold output gives approximately $0.150 per tested amp for EverStart and $0.121 for Super Start.

The higher-tier EverStart samples did not close the measured gap. The $150 EverStart Max produced 654 amps at 0°F, while the $100 Super Start Value produced 827 amps. Ambient readings also favored the Super Start flooded samples, at 903 to 1,106 amps, compared with 681 to 854 amps for EverStart.

Those results support Super Start for measured Group 65 flooded output. They do not show that Super Start will last longer under heat, vibration, short-trip charging, accessory loads, or repeated cycling.

EverStart Platinum AGM Is The Clear Exception

The AGM comparison does not support a blanket rejection of EverStart. EverStart Platinum AGM cost $189 and retained 10.46 volts during the carbon-pile test. Super Start Platinum AGM cost $260 and retained 10.45 volts.

A 0.01-volt difference is effectively a tie, but EverStart was narrowly higher while costing $71 less. That makes the tested EverStart Platinum the better load-test value of the two AGM samples.

EverStart Platinum was rated at 775 CCA, produced 859 amps in the ambient tester reading, and returned 746 amps at 0°F. Super Start Platinum was rated at 750 CCA and produced 802 amps in the ambient reading. Its final 0°F result was not available in the supplied transcript, so a complete AGM cold-weather comparison is not possible.

The supported AGM verdict is therefore limited: EverStart delivered essentially equal carbon-pile performance for substantially less money. The test does not establish superior cycle life, reliability, production consistency, or cold output for EverStart AGM.

Construction still takes priority over price. If the vehicle specifies AGM, use an appropriate AGM battery. A cheaper flooded battery is not an equivalent substitute merely because its case fits and its CCA rating appears sufficient.

The Older Group 27 Test Favored EverStart

Project Farm’s 2019 comparison reached a different result with two flooded Group 27 batteries. The EverStart sample cost $119.76, compared with $139.99 for Super Start Premium.

Super Start held a small initial warm-output advantage: 1,133 amps and 3.42 milliohms of internal resistance, versus 1,115 amps and 3.48 milliohms for EverStart. Following the sustained-load procedure and an overnight rest, EverStart retained 12.59 volts versus 12.47 volts, although Super Start still led the electronic output reading by 1,044 to 999 amps.

Cold readings favored EverStart. It produced 766 amps near 0°F and 708 amps near -20°F, compared with 745 and 683 amps for Super Start. The less expensive EverStart was therefore the stronger cold-value result among those two historical samples (Project Farm’s 2019 comparison).

That result does not conflict with the newer Group 65 test. Group 27 and Group 65 are different product families, and the comparisons occurred years apart using one sample per model. Product tier, design, sourcing, preparation, charge state, equipment, temperature, and sample variation can all affect the result.

The 2019 findings show why neither brand should receive a permanent overall ranking. They do not establish that a current EverStart Group 27 will outperform a current Super Start Group 27.

Fit And Construction Come Before Tested Value

Cost per tested amp matters only after both batteries fit the vehicle and meet its requirements. Confirm the group size, dimensions, terminal type and orientation, hold-down design, minimum CCA, reserve capacity, and required construction.

Group size describes a standardized physical format, including dimensions and terminal arrangement. Group 65 and Group 27 results cannot be combined into a single meaningful score. A strong Group 65 test also says nothing about how the same retail brand performs in another size.

CCA describes cold-starting capability. Reserve capacity addresses sustained electrical supply under its applicable test conditions. A battery with higher measured starting output may still have a different reserve-capacity rating, and the final reserve measurements from this test were not supplied.

Use the owner’s manual, the known-correct installed battery, a vehicle-specific catalog, or a qualified service professional to resolve fitment. Battery-selection guidance likewise recommends matching physical fit, terminal arrangement, cold-cranking requirements, reserve capacity, and construction before choosing by brand (AutoZone’s battery fit guide).

The tested EverStart product was identified as Max, while current Walmart listings may use Maxx. Do not assume a current Maxx battery is identical to the test sample without matching its group size, part number, construction, CCA, and reserve-capacity rating.

Compare The Battery At The Store, Not Just The Test Sample

Obtain same-day local prices for two batteries with matching fit and construction. Include the selling price, taxes, disclosed fees, core charge, and installation costs. The prices in the test are useful for analyzing those samples but are not current quotations.

Read the written warranty for the exact part number. A headline number of years does not reveal whether coverage is free replacement or prorated, what exclusions apply, where a claim can be handled, or what documentation is required. The available evidence does not establish that Walmart or O’Reilly provides universally better warranty service.

Inspect the case and terminals before accepting the battery. Reject a cracked, leaking, distorted, or visibly damaged case. Confirm the label, group size, part number, CCA, reserve capacity, and construction. If production or inventory markings are visible, ask the retailer to explain them and whether a fresher equivalent is available.

Retail access can settle a close comparison. Store hours, local stock, and practical warranty access matter when two correctly matched batteries offer similar specifications and value. Convenience should not override proper fit or a required AGM specification.

Which Battery Should You Buy?

For a flooded Group 65 application, the 2026 evidence favors Super Start. Super Start Value delivered the lowest cost per tested 0°F amp, and all four Super Start flooded samples led all three EverStart flooded samples in carbon-pile voltage.

For a Group 65 AGM application, EverStart Platinum offered the better measured load value. It essentially tied Super Start Platinum in the carbon-pile test while costing $71 less. The missing Super Start 0°F reading prevents a complete AGM cold-output verdict.

For a Group 27 flooded application, the historical 2019 test favored EverStart on price and cold output. That result is too old and too narrow to dictate a current purchase without checking the exact batteries now available.

Neither comparison answers which brand lasts longer. Project Farm tested one new sample of each model, not multiple production samples over years of vehicle use. Consumer Reports, by contrast, describes testing five units of each rated model and evaluating cold starting, reserve performance, and repeated cycling, illustrating why small single-sample differences should not become universal reliability claims (Consumer Reports’ battery-test explanation).

The defensible EverStart vs Super Start verdict is narrow but useful: Super Start currently has the stronger evidence for flooded Group 65 cranking value, while EverStart Platinum AGM is the lower-cost load-test exception. Confirm fit, construction, current specifications, total price, written warranty, and inventory condition before applying either result to your car.