Generational and Maverick Diagnostics Bring EV Battery Health Testing to 6,000 UK Workshops

Independent garages across the UK are set to gain significantly greater access to electric vehicle (EV) battery health testing following a new partnership between battery diagnostics specialist Generational and diagnostic equipment supplier Maverick Diagnostics.

The agreement aims to make professional battery State of Health (SoH) testing available through approximately 6,000 independent workshops, helping garages respond to growing demand for reliable EV battery assessments while creating new service opportunities as more electric vehicles enter the used vehicle market.

Why battery health testing matters

Unlike internal combustion engine vehicles, an EV’s battery is its single most valuable component. Although many batteries continue to perform well after years of use, their condition can vary considerably depending on age, charging habits, mileage and operating conditions.

For used EV buyers, battery health has become one of the biggest concerns when purchasing a vehicle. For workshops, being able to provide an independent battery assessment can help build customer confidence while supporting informed servicing, valuation and purchasing decisions.

Generational believes battery health checks should become as familiar to motorists as checking service history or ensuring a vehicle has a valid MOT.

What the partnership delivers

Under the new agreement:

• Generational will supply its battery testing hardware.
• It will manage workshop orders and provide the cloud-based software platform.
• Workshops will receive battery State of Health reports and customer certificates.
• Maverick Diagnostics will distribute the solution, market it to garages and provide training and technical support.

Maverick Diagnostics already supports thousands of independent workshops throughout the UK, making it well placed to accelerate adoption of battery diagnostics within the aftermarket.

Fast testing through the OBD port

The testing process has been designed to fit easily into normal workshop operations.

A compact device connects to the vehicle’s OBD port, allowing the software to analyse battery data before generating a detailed State of Health report within minutes.

The resulting report provides customers with information including:

• Overall battery State of Health
• Remaining battery capacity compared with when new
• Cell-level battery condition
• A customer-friendly battery health certificate

This enables workshops to explain battery condition in straightforward terms while giving customers documented evidence of the vehicle’s battery performance.

Opportunities for MOT and independent garages

Although battery health testing is not currently part of the MOT inspection, the technology creates several new revenue opportunities for garages.

Potential uses include:

• EV servicing appointments
• Pre-purchase inspections
• Used vehicle appraisals
• Part-exchange valuations
• Pre-sale inspections
• Fleet maintenance programmes
• Warranty assessments

As EVs move into second and third ownership, independent garages are expected to play an increasingly important role in providing reassurance about battery condition—something that franchised dealer networks have traditionally dominated.

Industry data shows strong battery performance

Generational’s latest Battery Performance Index, based on more than 8,000 battery assessments carried out across the UK, found an average battery State of Health of 95.15%.

While many higher-mileage and older EVs continue to demonstrate strong battery performance, the company found that variation between vehicles increases with age, reinforcing the importance of testing individual vehicles rather than relying solely on mileage or age.

Supporting the future of workshop diagnostics

As electric vehicles become a larger proportion of the UK’s vehicle parc, battery diagnostics are rapidly becoming an essential workshop capability rather than a specialist service.

For independent garages, adding battery health testing could provide both a competitive advantage and an additional source of revenue while helping motorists better understand one of the most important—and expensive—components of their vehicle.

The partnership between Generational and Maverick Diagnostics demonstrates how aftermarket suppliers are preparing workshops for an increasingly electrified future, making advanced EV diagnostics more accessible across the independent repair sector.