Purchase with Confidence at Smiths Motor Group

At Smiths, we understand the importance of battery health in electric vehicles (EVs). That’s why we undertake comprehensive battery health checks on selected electric vehicles. This ensures you can purchase confidently, knowing that each EV’s battery condition is thoroughly assessed and certified. We provide detailed battery health reports, fair pricing based on the battery’s condition, and clear information to help you avoid unexpected issues.

​Why Should You Test EV Batteries?

Testing EV batteries is crucial for several reasons. First, it certifies the battery’s health, ensuring its condition is accurately assessed, which is especially important for pre-owned EVs. This process provides you with reliable information, giving you full confidence in the vehicle. Accurate battery health assessments also help us price pre-owned EVs correctly, reflecting the true condition of the battery. Additionally, transparent battery health information minimises the chances of surprises down the line.

Testing EV Batteries with Generational

Generational enables efficient and accurate testing of electric vehicle battery health, streamlining the process to provide our specialist technicians at Smiths Motor Group with a State of Health (SOH) certification for your used EV. By partnering with Generational, we can implement advanced EV battery monitoring solutions, ensuring you get the most out of your electric vehicle.

A comprehensive battery health check provides you with detailed insights, including a unique assessment ID for each test, and specific vehicle details such as make, model, VIN, registration, and mileage. It also includes the battery’s State of Health (SoH), indicating the current usable capacity compared to its original capacity and both usable and nominal battery capacities. Additionally, the check covers battery warranty details, including the remaining warranty period, and provides an estimated real-world range under various conditions.

How Does The Battery Health Check Work?

Our battery health check process is both extensive and accurate:

  • Connect the OBD Dongle: We begin by plugging the OBD dongle into the vehicle’s onboard diagnostics port.
  • Initiate the Test: The test is then started, typically taking around 2 minutes to complete.
  • Retrieve Data: The test retrieves the State-of-Health (SoH) from the vehicle’s Battery Management System (BMS), providing a value equivalent to that of an official manufacturer diagnostic tool.

Why Is It Important to Check EV Battery Health?

Checking the health of an EV battery is crucial as it affects the vehicle’s performance, range, and reliability. Knowing the battery’s condition helps to prevent unexpected issues and provides peace of mind. By having regular checks, it offers you clear information, allowing for informed maintenance decisions and helping maintain the vehicle’s value.​

What Factors Cause Battery Degradation?

Several factors influence how quickly an EV battery degrades, including:

  • Battery Age: Older batteries generally have diminished capacity.
  • State of Charge (SoC): Keeping the battery at an optimal charge level can extend its lifespan.
  • Frequent Rapid Charging: Regular use of rapid charging can speed up battery degradation.
  • Driving Habits: Aggressive driving can adversely affect battery health.
  • Manufacturing Variations: Differences in production can impact battery performance.
  • Deep Discharge Cycles: Frequently draining the battery completely can shorten its lifespan.

Why Buy Your EV From Us

Choose Smiths for your next used EV and experience unparalleled service and quality. Our dealership is committed to providing top-notch electric vehicles that have undergone rigorous battery health checks, ensuring reliability and performance. With transparent pricing, detailed vehicle reports, and a team of knowledgeable specialists, we make the buying process smooth and trustworthy. Customer satisfaction is our priority, and we strive to offer the best value and peace of mind with every purchase.



Regular EV battery health checks are essential for maintaining the performance and reliability of electric vehicles. Find out more about transitioning to electric vehicles here:

Find out more