EV Battery Coverage Extended to 12 Years by RAC Warranty

As of July 16, 2026, RAC Warranty has strengthened its EV One policy by extending battery failure coverage to 12 years or 80,000 miles. The revised protection now applies to battery-electric vehicles, plug-in hybrids, and mild hybrids, giving car buyers a longer safety net against one of the most expensive components in any electrified vehicle. The update comes at a moment when used EV sales are climbing quickly, and RAC has reported stronger warranty demand than in any previous full-year period.

EV One was first introduced in 2020 as a specialist electric vehicle warranty. At the time, battery concerns were widespread, and only a handful of aftermarket providers offered dedicated EV cover. Since then, RAC has used data from claims and customer feedback to build a clearer picture of what EV buyers actually want. The new 12-year battery cover is aimed squarely at the lingering fear that a high-voltage battery could fail long after a factory warranty ends.

The extended coverage is not limited to full EVs. Plug-in hybrids, which carry large battery packs as well as combustion engines, are included. So are mild hybrids, where the battery is smaller but still essential for features like start-stop and energy regeneration. By widening the scope, RAC is making the policy relevant to a broader range of electrified cars rather than only cutting-edge models.

The finer details matter too. RAC dealers can sell the EV One policy for terms of up to 48 months, which makes it practical to bundle warranty protection into a vehicle purchase at the point of sale. The maximum claim limit is set at the purchase price of the vehicle, so in a worst-case battery failure, the policyholder can claim up to the amount they paid for the car. That design avoids the thin caps found in many generic older warranties.

Replacement battery quality is also addressed. If a battery fails and needs to be replaced, the replacement unit must have at least the same energy capacity as the original immediately before the failure. This is an important distinction. Some warranties promise a “new” battery but fail to specify whether that battery matches the pre-failure capacity. RAC’s wording gives the customer a firm baseline and prevents claims from being settled with a lower-rated pack.

There is also a strong market signal underneath the announcement. RAC Warranty sold more EV policies in the first six months of 2026 than in the whole of 2025. That level of growth suggests EV-specific warranty cover is no longer a niche product. More buyers are looking for protection that is designed around battery risk instead of relying on general car warranty terms.

Lee Coomber, RAC client director at Assurant, which underwrites and administers RAC Warranty products, said the extension is meant to provide reassurance over a longer period of ownership. He pointed out that battery failure worries have eased but remain important, especially for first-time EV buyers. He also noted that EV warranties now account for a significant share of RAC Warranty sales and are continuing to grow strongly in the second half of the year.

The timing is significant. Large numbers of used EVs are reaching the market just as consumer interest in lower running costs is rising. For many buyers, the biggest hesitation is not range or charging but the potential cost of a battery replacement later in the car’s life. A 12-year battery failure window removes much of that hesitation, especially for someone buying an older EV with no remaining manufacturer battery cover.

From a consumer perspective, the difference between "battery failure cover" and "battery degradation cover" is worth noting. The EV One policy addresses failure, not normal capacity loss over time. A battery that simply holds less charge after years of use would not necessarily trigger a claim. But the requirement for an equivalent-capacity replacement after a verified failure gives owners a meaningful level of financial protection.

Another strength of the policy is its flexibility across vehicle types. Full EVs, plug-in hybrids, and mild hybrids share some electrical components but not all. Many general warranties treat them with broad exceptions for hybrid systems. By creating an EV-specific product, RAC can be more transparent about what is covered and what is excluded. That is exactly the kind of clarity used car buyers need when comparing warranty options.

For U.S. readers, the announcement offers a useful benchmark. Most American automakers provide battery warranties that run eight years or a certain mileage limit, but many of those warranties are tied to original ownership or are less generous once a car moves to a used lot. A specialist aftermarket product like EV One shows how warranty providers can fill the gap between factory cover and the full useful life of an EV.

There is an added lesson for the industry. As EVs become a bigger part of the used car market, warranties will be a deciding factor in purchase decisions. Dealerships that offer a 12-year battery failure option gain a strong talking point. They can tell customers that the most expensive component of the vehicle is covered far beyond the typical ownership cycle.

RAC’s sales data points in the same direction. If first-half 2026 sales have already overtaken all of 2025, then the appetite for EV-specific cover is growing faster than the overall EV market. That suggests consumers are not just buying electrified cars; they are also buying peace of mind.

The announcement also fits a broader commercial trend. Warranty providers are using data from existing claims to price battery risk more accurately. RAC has had several years of EV One claims and customer experience to draw on, which makes the 12-year extension more than an empty marketing promise. The underwriting is clearly reaching a point where longer cover is commercially viable.

Assurant, as the underwriter behind RAC Warranty, brings a global perspective to claims and risk management. That is relevant because battery failures can involve complex diagnostics, supply chain delays, and expensive repair decisions. A specialist administrator is better positioned to handle those situations than a generic warranty provider with little EV experience.

For consumers, the advice is straightforward. When buying a used EV, check the remaining manufacturer battery warranty first. Then compare aftermarket products by looking at the claim limit, the replacement battery requirement, and the length of coverage. A 12-year, 80,000-mile battery failure cover is generous, but the exact wording of the policy still matters.

RAC has not announced a price change for EV One, and the original coverage terms remain the basis of the product. The extension simply adds more long-term value for policyholders. That should be attractive not only to environmental-conscious drivers but also to fleet owners who hold vehicles for many years.

The used EV market is now mature enough to support specialized warranty products, and the numbers prove that consumers are paying attention. By extending battery failure coverage to 12 years, RAC Warranty is positioning itself as a leader in the space. The next challenge is making sure consumers understand what the product covers and why it should matter to them.

Ultimately, this update is a clear sign that battery anxiety is being met with better insurance products. It is no longer enough to say an EV is cheap to run; owners also want to know that a sudden battery failure will not wipe out their savings. RAC’s move directly answers that concern.