Tesla Battery Warranty: What's Covered and What's Left Used

Under Tesla’s current North American warranty, effective September 1, 2026, a new Tesla carries a Battery and Drive Unit Limited Warranty of 8 years, with a mileage cap that depends on the model and the battery it was built with: 100,000 miles for a Standard or Standard Range Plus Model 3 or Model Y, 120,000 miles for Long Range and Performance versions, and 150,000 miles for Model S, Model X and Cybertruck. Each row promises “minimum 70% retention of Battery capacity” over that period.

That is the number most pages stop at. The parts that decide whether the warranty ever pays you anything are in the fine print. The clock starts at first delivery, not the model year, and capacity loss from normal use is not covered until it crosses the 70 percent line. Fleet averages Tesla has published for the Model S, Model X and Long Range Model 3 and Model Y put loss at 12 to 15 percent after 200,000 miles, about half the threshold at more distance than any cap allows. And since December 2025 there is a 2,000-dollar extension of up to two years or 30,000 miles, sold only for the Model 3 and Model Y in the United States and Canada, only before the original coverage expires, and only for outright failures.

What follows is transcribed from Tesla’s warranty documents, each named with its edition date, not from a dealer’s summary of them.

What is the Tesla battery warranty by model?

All rows are “whichever comes first,” and all carry the same clause: “with minimum 70% retention of Battery capacity* over the warranty period.” The Cybertruck document, effective June 5, 2025, uses the same terms for its 8-year, 150,000-mile row.

The booklet still uses older trim names. Tesla’s vehicle warranty page, read on October 11, 2026, maps the cars it sells now onto the rows. It lists the Model 3 RWD, Model Y RWD and Model Y AWD at 8 years or 100,000 miles. It lists the Model 3 Premium RWD, Premium AWD and Performance AWD, the Model Y Premium RWD, Premium AWD and Performance AWD, and the Model Y L Premium Launch Series at 8 years or 120,000 miles. The split follows the trim, not the drivetrain: an all-wheel-drive Model Y without the Premium name is on the 100,000-mile row, and a rear-wheel-drive Premium car is on the 120,000-mile row.

The Model S, Model 3, Model X and Model Y rows above are from the edition effective September 1, 2026; the Cybertruck row is from its own booklet. Its battery section reads the same as the previous edition, effective June 5, 2025; what the newer booklet adds is an emissions warranty for model year 2027 and later cars, covered below. The Model 3’s years and miles are the same in the oldest Model 3 booklet read for this page, published in October 2018. It reads “Model 3 with Standard or Mid-Range Battery - 8 years or 100,000 miles (160,000 km)” and “Model 3 with Long Range Battery - 8 years or 120,000 miles (192,000 km), whichever comes first, with minimum 70% retention of Battery capacity.” The January 2020 worldwide edition carries the same Model 3 and Model Y rows as the current edition, and the same note, still in the current edition, that matters for older Model S and Model X buyers: “Any Model S or Model X purchased prior to the effective date specified on the cover page of this New Vehicle Limited Warranty is subject to the applicable Battery and Drive Unit Warranty effective as of the date of purchase.”

That older Model S and Model X warranty had no mileage cap. The 2012-2017 edition says the battery and drive unit “are covered under this Battery and Drive Unit Limited Warranty for a period of 8 years, with the exception of the original 60 kWh battery (manufactured before 2015) that is covered for a period of 8 years or 125,000 miles/200,000 km, whichever comes first.” The rule for which booklet applies is on Tesla’s warranty page: the posted warranties “apply only to vehicles purchased directly from Tesla on or after the date listed on the limited warranty,” and earlier cars “are subject to the applicable limited warranty effective as of the date of purchase.” The October 2018 booklet still listed “Model S and Model X - 8 years” with only the old 60 kWh exception, so a Model S bought under it has no mileage cap either. If you are looking at a 2019 Model S, the document that governs it is the one in force when it was first bought, not the current table, and the 2019 edition was not read for this page.

What does the 70% rule mean?

The warranty covers two different things, and the document separates them. The first is a defect: “the repair or replacement of any malfunctioning or defective Battery or Drive Unit.” The second is capacity, and here the wording is careful. Normal aging is not a defect: “The Battery, like all lithium-ion batteries, will experience gradual energy or power loss with time and use. Loss of Battery energy or power over time or due to or resulting from Battery usage is NOT covered under this Battery and Drive Unit Limited Warranty, except to the extent specified in this Battery and Drive Unit Limited Warranty.”

The extent specified is the 70 percent floor. Fall below it inside the years and miles, and the capacity clause applies. Three details in the fine print decide how that plays out in practice.

• A capacity claim does not promise a new pack. Tesla may fit “a new, reconditioned or re-manufactured part at the sole discretion of Tesla,” and for capacity claims the bar is lower still: “For warranty claims specific to Battery capacity, the replacement Battery will be in a condition appropriate to the age and mileage of the vehicle sufficient to achieve or exceed the minimum Battery capacity for the remainder of the warranty period of the original Battery.”
• The range display is not the evidence. “Note that the vehicle’s range estimates are an imperfect measure of Battery capacity because they are affected by additional factors separate from Battery capacity.”
• Tesla picks the ruler. “The measurement method used to determine Battery capacity, and the decision of whether to repair, replace, or provide reconditioned or re-manufactured parts, and the condition of any such replaced, reconditioned or re-manufactured parts, are at the sole discretion of Tesla.”

Now put the floor next to the fleet numbers Tesla has published. Electrek reported in April 2023 that Tesla’s 2022 Impact Report showed “12% battery degradation after 200,000 miles,” and noted the figure covered the Model S and Model X only. Notebookcheck reported in June 2024 on a Tesla report that included the smaller cars: Model 3 and Model Y Long Range packs “lose only around 15% of their capacity” at 200,000 miles, with Model S and Model X at “an even lower 12%.”

The warranty ends at 100,000 to 150,000 miles, and the 70 percent floor is a 30 percent loss. Those fleet averages at 200,000 miles, past every cap, are about half that. So on Tesla’s averages a typical Model S, Model X or Long Range Model 3 or Model Y does not reach the capacity clause before the warranty expires, and one that does is an outlier. Neither report gives a figure for the standard-range cars on the 100,000-mile row or for the Cybertruck, and Tesla’s note, as Electrek quoted it, says “Performance of newer chemistries (not shown here) can vary.”

Two cautions come with those figures. They are averages, and Notebookcheck adds that “there will certainly be outliers who either experience far more, or even less degradation over time.” They are also sorted by mileage, not by age. Tesla’s own note, as Electrek quoted it, says “battery age is also a major factor” and that the high-mileage values “likely reflect less influence from battery age.” An eight-year-old car with ordinary mileage is not the car a 200,000-mile figure describes.

The practical reading is that the 70 percent promise is a backstop against an unusually bad pack, not a plan for a normally tired one. If your car is losing range faster than that fleet curve, the Tesla battery degradation calculator will show you how far off the typical line it sits.

How much Tesla battery warranty is left on a used car?

The balance, and the balance follows the car. The warranty “is transferable at no cost to any person(s) who subsequently and lawfully assume(s) ownership of the vehicle after the first retail purchaser within the described limitations of this New Vehicle Limited Warranty.” Tesla’s warranty page says it “will follow your vehicle and be transferred to the new owner when a vehicle ownership transfer is performed through Tesla.”

Buying from Tesla directly changes nothing on the battery side. Tesla’s pre-owned warranty covers the car for “1 year or 10,000 miles,” whichever comes first, after the basic warranty ends, or from the used-car delivery if the basic warranty has already run out, but it names the battery as an exception. The original terms carry on instead: the balance of the New Vehicle Limited Warranty “applies to your Tesla used vehicle and remains in effect concurrently with this Pre-Owned Vehicle Limited Warranty.”

So the main question is how much balance there is, once you know the title is clean: a branded or salvage title can void the warranty for every later owner, as the section on voiding below explains. The booklet sets the start of the clock: the warranty “begins on the first day a new vehicle is delivered by Tesla to the first retail or corporate purchaser(s) or lessor(s).” That date and the odometer are the two numbers that matter, because every row of the table is “whichever comes first.” Coverage left is whichever of these runs out sooner:

• Years left = 8 minus the years since delivery to the original buyer
• Miles left = the model’s cap minus the odometer

If the car is already in your Tesla account, the app shows warranty details for it. Tesla’s warranty page, read on October 11, 2026, points to the Specs & Warranty section at the bottom of the app’s home screen, then the Warranty tab.

Worked example, using the kind of car this site’s author drives: a 2019 Model 3 AWD. The Long Range battery row is 8 years or 120,000 miles. A car delivered in mid-2019 showing 70,000 miles in October 2026 has under a year of time left and 50,000 miles of distance left, so the time runs out first, in mid-2027. The same car with 115,000 miles has 5,000 miles left and the odometer wins. A “2019” that was delivered in December 2018 is months closer to the end than its badge suggests, and a low-mileage example of an eight-year-old car has no battery coverage at all, however clean it is.

That is the reason the model year is the wrong number to anchor on. Cars delivered in 2018, 2019 and 2020 cross the 8-year line in 2026, 2027 and 2028, and a car that has not reached its mileage cap by then hits the calendar limit before the mileage one. Ask the seller for the original delivery date, and treat a shrug as a reason to check with Tesla before money moves. The used Tesla buying guide covers what else transfers with the car and what to check before you pay.

Can you extend the Tesla battery warranty?

Since December 2025, yes, for two models, and only if you act before the original coverage ends. Tesla’s High Voltage Battery and Drive Unit Extended Service Agreement, which the document calls the “Battery ESA,” covers the Model 3 and Model Y in the United States and Canada for “up to 2 years (24 Months) or 30,000 miles (48,000 kilometers) from the Coverage Start Date, whichever comes first,” with coverage starting when the factory battery warranty expires. The one-time fee is “$2,000.00 (USD)” or “$2,800.00 (CAD),” with a “$500.00 (USD)” or “$700.00 (CAD)” deductible per visit. Not a Tesla App reported the launch on December 14, 2025, and noted it is a “one-time purchase (no subscription is offered at this time).”

Four terms decide whether it is worth anything to you.

The deadline is hard. It is “a condition of coverage” that “You purchase this Battery ESA before the expiration or termination of the Vehicle Battery and Drive Unit Limited Warranty.” Once the 8 years or the mileage cap has passed, the option is gone. The agreement is bought in the Tesla app, and a car qualifies once: the “Vehicle must not have a previously active, expired or terminated Battery ESA.” The agreement also attaches a proviso to its service region: “provided that You are the original purchaser who purchased the Vehicle directly from Tesla (or are a subsequent owner to whom this ESA is validly transferred during the Coverage Period or sold by Tesla during the Purchasing Period).” If you bought your car privately, check in the app that Tesla will sell you one before you plan around it. For the 2018-2019 cohort above, that means deciding in the months before the anniversary, not after the first warning light.

It does not cover capacity loss. The exclusions list includes “Failures or degradation specific to Battery capacity or energy retention.” The document says this about itself in plain terms: “it is not simply an extension of Your Battery and Drive Unit Limited Warranty but instead has its own exclusions and deductible.” The 70 percent promise ends with the factory warranty. What you are buying is protection against a pack or motor that stops working, defined as “the mechanical breakdown or inability to perform the function(s) for which it was designed.”

The exclusions go beyond capacity. Among them are “Vehicles used for commercial purposes,” cars without a clean title, and “Using the Vehicle as a stationary power source.” The agreement also requires you to “have Your Vehicle serviced as recommended by Tesla” and says proof of that service can be requested before a repair.

You pay nothing until it starts, and you can walk away. “You will not be charged, and Tesla is not obligated to provide services under the Battery ESA, until Your Vehicle Battery and Drive Unit Limited Warranty expires” and you have signed the agreement. Cancel before that date “and, if applicable, receive a full refund,” or within the first 60 days of coverage without a claim for the same full refund. Cancel in those 60 days after a claim and the refund is pro-rata, “less the amount of any Claims paid.” It also transfers: the agreement is “for the sole benefit of the purchaser, or any subsequent owner of the vehicle to whom this Battery ESA is validly transferred during the Coverage Period.” A seller “must record the transfer in the Tesla App,” after which “The new owner will have the option to continue this Battery ESA.”

Whether 2,000 dollars is a good bet depends on how often packs and motors fail in the two years after the factory warranty ends, and that rate is not in the agreement, so you cannot price the bet from the document. What you can price is the downside it caps, which is the next section. If you want the option, check the Tesla app before the deadline. Tesla’s warranty page said on October 11, 2026 that Model 3 and Model Y owners “may be eligible,” and the terms above are dated December 11, 2025; Tesla can revise them.

What does a Tesla battery replacement cost out of warranty?

This is the number the ESA is measured against, and it is the figure on this page most likely to go out of date. Recurrent’s comparison, dated June 24, 2024, put a Model 3 pack at “Battery Cost: $13,500+” with “Labor Cost: $2,299.27,” totaling “$15,799.27,” with an estimate of “about $15,000” for the Model Y, for which it had found no invoices, and “$20,000 - 22,000” all in for a Model S. Find My Electric’s guide, updated July 29, 2026, gives “a reasonable 2026 estimate is about $12,000-$16,000 installed” for “an uncomplicated out-of-warranty Model 3 battery replacement,” and “often $16,000-$20,000+” when there is damage or extra high-voltage work.

Neither figure is a Tesla price list, and none of the Tesla documents read for this page gives a pack price. Prices move, and the only number that applies to your car is the estimate a service center writes for it. For a Model 3 or Model Y, read the uncomplicated figures above as roughly six to eight times the 2,000-dollar extension, before its 500-dollar deductible, and get a live quote before you decide anything. The higher damage-related range does not belong in that comparison, because the extension excludes physical damage to the pack’s enclosure from outside forces.

A pack you pay for comes with its own cover against failure, with no 70 percent promise attached. Tesla’s warranty page lists a replacement high-voltage battery bought from Tesla under its Parts, Body and Paint Repair Limited Warranty at “4 years or 50,000 miles, whichever comes first.” The page’s definition is narrow: “Failure does not include the gradual loss in operating performance due to normal wear and tear.”

Under warranty, the calculation is different. The document warns that a warranty replacement may not return the car to like-new condition, then commits that “when replacing a Battery, Tesla will ensure that the energy capacity of the replacement Battery is at least equal to that of the original Battery before the failure occurred while taking into consideration other factors, including the age and mileage of the vehicle.” You get back what you had, not what the car left the factory with.

What voids the Tesla battery warranty?

The warranty lists the excluded causes directly. Not covered: “damage resulting from intentional actions (including intentionally abusing or destroying your vehicle or ignoring active vehicle warnings or service notifications), a collision or accident (excluding from Battery fires as specified above), or the servicing or opening of the Battery or Drive Unit by non-Tesla or non-certified personnel.” Also excluded is damage from “Damaging the Battery, or intentionally attempting, either by physical means, programming, or other methods, to extend (other than as specified in your owner manual and any documentation provided by Tesla) or reduce the life of the Battery,” from “Exposing the Battery to direct flame (excluding from Battery fires as specified above),” and from “Flooding the Battery.” Those are the words of the Model S, Model 3, Model X and Model Y booklet. The Cybertruck booklet’s battery list adds “Using the vehicle as a permanent, stationary or long-term power source or backup” and “Flooding the Battery or vehicle use outside the scope of the Owner’s Manual.”

Two quieter clauses deserve more attention than the dramatic ones. The first ties coverage to the manual: “See your owner documentation for important information on how to maximize the life and capacity of the Battery. If you fail to follow these recommended battery maintenance and charging procedures, any resulting issues will not be covered by this Battery and Drive Unit Limited Warranty.” The manual’s charging guidance, and what the calendar-aging data says about it, is the subject of the site’s charge-limit article. The second is about software: “Any noticeable changes to the performance of the Battery due to these software updates are NOT covered under this Battery and Drive Unit Limited Warranty.” A range drop that arrives with an update is, by the document, not a warranty matter. Skipping updates is no way around that: the booklet says coverage may be excluded for failing to “Install the vehicle’s software updates after notification that there is an update available.”

The booklet’s general exclusions apply to the pack as well, and two of them are about running things from the car. One is “Using the vehicle as a stationary power source unless explicitly stated that the vehicle supports Powershare,” with Tesla-approved equipment and professional installation. The clause ends “(excluding Model S and Model X),” which reads as leaving those two models out of the Powershare exception. The other is “Using the vehicle as a permanent or long-term power source with signs of unreasonably high energy throughput that may be inconsistent with mileage driven,” outside a Tesla-supported grid program. Asked about “a third-party bi-directional vehicle adaptor or charger,” Tesla’s warranty page answers that the warranty “does not cover damage caused by third-party vehicle adaptors or chargers.”

There is also a difference between a claim being denied and the whole warranty being voided. Voiding is reserved for a short list: vehicles with a “VIN defaced or altered or the odometer or other related system disconnected, altered or rendered inoperative,” vehicles that “do not have clean title or have been sold, designated, labeled or branded as dismantled, fire-damaged, flood- damaged, junk, rebuilt, salvage, reconstructed, irreparable or a total loss,” and vehicles “determined to be a total loss by an insurance company.” A salvage-title Tesla at a tempting price is one Tesla “may void” the warranty on entirely, and if it does, that holds “for you or any subsequent owner.”

One thing the warranty pointedly does cover: fire. “This Battery and Drive Unit Limited Warranty will also cover damage to your vehicle from a Battery fire even if it is the result of driver error.” The carve-out follows in the same breath: “Coverage will not extend to damage that had already been sustained before a Battery fire occurred, or to any damage if the Battery fire occurred after your vehicle had already been totaled.”

Is the 12V low-voltage battery covered by the battery warranty?

No. The Battery and Drive Unit warranty is about the high-voltage pack. The Cybertruck edition opens its battery section with “The Tesla high-voltage lithium-ion battery,” and the extended agreement lists “Low voltage components, including the LV battery” among its exclusions. The September 2026 booklet does not mention the low-voltage battery by name. This page’s reading is that it falls under the Basic Vehicle Limited Warranty, “4 years or 50,000 miles (80,000 km), whichever comes first,” so confirm with Tesla if yours fails. On a used car bought from Tesla, the pre-owned warranty lists “Low voltage (LV) battery” among the maintenance items it does not cover. Why that battery still fails the way a gas car’s does, and what replacing it involves, is the subject of the Tesla 12V battery article.

What is the 7-year warranty on 2026 Teslas?

The warranty booklet carries a block of “Zero-Emissions Vehicle Limited Warranties” that “apply only to vehicles of Model Year 2026 and later.” The block was in the June 5, 2025 edition and carries the same periods in the September 1, 2026 one. They are “minimum coverages set by regulation,” and the document notes that the main warranty “may provide longer coverage of a particular issue.” The booklet says the propulsion-related parts these warranties cover include “the high voltage battery.” The two that run longest for the pack are:

• High-Priced Propulsion-Related Parts ZEV Limited Warranty: “For 7 years or 70,000 miles (110,000 km), whichever comes first,” covering a published parts list. For the Model 3, that list starts with the “High Voltage Battery (HVB) assembly” and the “High Voltage Controller (HVC)” and runs through drive units, inverters, the power conversion system, harnesses, the supermanifold, the cooling fan and the radiator.
• Battery ZEV Limited Warranty: “For 8 years or 100,000 miles (160,000 km), whichever comes first, Tesla warranties that the Battery will be free from defects in material and workmanship that would cause the retention of Battery capacity to fall below 70%.”

For the pack itself, the 8-year Battery and Drive Unit warranty already meets or beats both, so the buyer of a model-year 2026 car gains coverage on the parts around the pack more than on the pack. These are not California-only terms. Tesla’s parts list says the warranty is provided “In compliance with California law,” but the booklet says the ZEV warranties “apply to all vehicles with a Warranty Region of the United States and Canada, except as specifically noted below,” and the only one it ties to state registration is the separate 3-year Initial ZEV Limited Warranty.

The September 1, 2026 edition adds one more layer for the following model year: an Emissions Performance Warranty that “applies only to vehicles of Model Year 2027 and later.” It runs “For 8 years or 80,000 miles (128,700 km), whichever comes first,” on what the booklet calls Major Emission Control Components. Tesla’s two documents describe its reach differently: the booklet says it “applies to all vehicles with a Warranty Region of the United States and Canada,” and the warranty page calls it “Available for Model 3 and Model Y vehicles” where the warranty is valid in the United States, Canada or Puerto Rico. Tesla’s list for the Model 3 and Model Y, also dated September 1, 2026, starts with “High Voltage Battery” and goes on to the onboard charging system, the power conversion system, the drive units and powertrain thermal management, leaving out components “not needed to charge the high voltage battery, store energy, or transmit power to move the vehicle.” For the pack, 80,000 miles is a lower cap than any row of the battery table, and the section sets no capacity figure, so the 70 percent promise still comes from the Battery and Drive Unit warranty.

How do you check your Tesla’s battery health?

The Model 3 owner’s manual, in the edition for software 2026.32, describes two tools. The first is a screen: “For an evaluation of the Battery’s energy retention, touch Controls > Service > Battery Health.” The second is slower: “Optionally, you can run the Battery Health Test, which requires Model 3 to be connected to an AC charger for up to 24 hours,” after which the touchscreen shows “a percentage that reflects the energy retention of your vehicle’s Battery compared to when it was new.” Not every car has it. The manual says “Your vehicle may not be equipped with the Battery Health Test feature.”

The test has conditions. The car must be “plugged in to an AC charger that provides at least 5 kW of power,” in Park, with no pending software update, no active battery or thermal alerts, and “less than 20% Battery level remaining.” The feature also “requires that Model 3 be connected to Wi-Fi or a cellular network.” During the run “the Battery will be discharged below 10% (and may be discharged as low as 0%),” and the manual warns: “Climate control systems are disabled while the Battery Health Test is running. Do not leave occupants unattended in the vehicle while the test is running.” Afterward “the Battery Health Test will be unavailable until the Battery management system detects that there has been a change in your vehicle’s Battery sufficient enough to be measured by a new test.” Tesla’s own advice is restraint: “Tesla recommends using the Battery Health Test only if there is a concern about the energy retention of the high voltage Battery.”

That is the Model 3 manual. The manuals for the other models were not read for this page, so check your own car’s. Not a Tesla App described an earlier form of the test in June 2024, started from the car’s Service Mode, along with a quick automated check in the phone app’s service-request flow. Treat that as a description of its time; the owner’s manual is the authority on where the test lives now.

The percentage is the car’s own evaluation, and it is a better basis for a capacity conversation with Tesla than the range figure on the screen, which the warranty calls “an imperfect measure of Battery capacity.” It is not automatically the warranty’s number, because the booklet leaves “The measurement method used to determine Battery capacity” to Tesla. The manual’s next step comes with a condition: “If the energy retention of the Battery is affecting the usability of your vehicle, schedule a service appointment.” If you are buying a used Model 3, ask the seller for the delivery date and a photo of the Battery Health screen, plus the test percentage if one has already been run. That tells you more about the pack than any listing photo. For other models, check that car’s manual for what it offers.

Frequently asked questions

Is the Tesla battery warranty transferable?

Yes, at no cost, to anyone who “subsequently and lawfully assume(s) ownership of the vehicle after the first retail purchaser.” The 2,000-dollar extension transfers too, to a subsequent owner “to whom this Battery ESA is validly transferred during the Coverage Period.”

Does the Tesla warranty cover battery degradation?

Only below 70 percent of original capacity, inside the years and miles. Above that line, loss “over time or due to or resulting from Battery usage is NOT covered.” The extension does not cover capacity at any level.

What is the battery warranty on a 2019 Model 3?

Going by the booklets read on either side of 2019: 8 years or 100,000 miles for the Standard, Mid-Range or Standard Range Plus battery and 8 years or 120,000 miles for the Long Range battery, both with the 70 percent floor, counted from the first delivery date. The 2017-2018 booklet and the January 2020 edition, the two read on either side of 2019, give the same figures. A car delivered in 2019 reaches the 8-year limit during 2027.

Does buying a used Tesla from Tesla add battery coverage?

No. The pre-owned warranty explicitly excludes “parts covered under the original New Vehicle Limited Warranty’s Battery and Drive Unit Limited Warranty” and says the original battery terms continue “concurrently” instead.

Can a Model S or Model X owner buy the extension?

Not under the December 2025 terms, which list only “Model 3, Model Y” for the “United States, Canada.” Tesla’s warranty page still named only the Model 3 and Model Y for the Battery ESA on October 11, 2026.

What to do if your Tesla is a 2018, 2019 or 2020

Find the delivery date and write down the day the 8 years end. If you have a real concern about capacity, look at the Battery Health screen on a Model 3 (for other models, check the manual) and, if the car has it, run the Battery Health Test while the warranty is still open. A test result is not a claim, though. The booklet says “you must notify Tesla within the applicable warranty period,” so open a service request before the date passes. If the car is a Model 3 or Model Y, decide on the 2,000-dollar extension before that date, knowing it buys failure coverage and not capacity coverage. And if you are the buyer, not the owner, ask for the delivery date, the title status and whatever battery health reading the car can show before you talk price.

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