Electric Vehicle Battery Testing
Replicating real-world conditions for EV batteries in one location
Why EV Batteries must be tested
Electric vehicle batteries are safety‑critical systems operating under continuous thermal, mechanical, and electrical stress. Safety and abuse testing provide critical insight into how batteries behave under misuse, degradation, and failure conditions, where risks escalate rapidly and consequences can be severe. Reliability cannot be assumed. The question is simple: will your battery perform safely when it matters most?
Our Testing Approach
Resonate Testing provides comprehensive EV battery testing to verify safety, compliance, and performance, whether you require single cells or full packs to be assessed. The facility conducts all critical tests, including UN 38.3 transport compliance, as well as UN ECE Regulation No. 100 (UNECE R100) and UNECE Regulation No. 136 (UN ECE R136) standards for vehicle batteries, all in one location. With ISO 17025 accreditation, our results are recognised globally. As an engineering-focused team, we strive to exceed standard procedures. Our process begins by carefully listening to your objectives before acting, allowing us to deliver bespoke engineered solutions tailored to your specific needs. Trusted data and comprehensive documentation are provided, demonstrating your battery’s safety and reliability to regulators, customers, and partners. We help you confidently progress towards market launch.
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Battery Test Capabilities
Our testing replicates real-world and extreme conditions to help you optimise performance, durability, reliability, and safety; with clear, actionable results you can trust. We offer the following EV battery testing services:
Battery Abuse and Safety Testing
We help you demonstrate battery is safe under fault, misuse, and extreme scenarios (Battery Abuse Testing). Our advanced test capabilities are designed to challenge systems to failure, supporting safer designs and informed risk mitigation.
We provide:
- Thermal propagation testing
- External short circuit testing
- Overcharge and overdischarge testing
- Nail penetration
- Static and dynamic crush
- Roll‑over testing
- Drop and impact testing
- Water ingress and leakage assessment
- Fire resistance and flame exposure testing
Battery Performance and Lifecycle Testing
We replicate the thermal, climatic, and operational stresses batteries experience in service, providing data that supports design validation and lifecycle optimisation.
We provide:
- Cycle testing under controlled climatic conditions (temperature and humidity)
- Electrical and performance parameter determination
- High‑performance and accelerated cycling
- Lifecycle and degradation simulation
- Cooling system and thermal management validation
Battery Environmental and Durability Testing
Battery Environmental and Durability Testing
Our facilities verify battery robustness under harsh environmental and mechanical conditions, supporting durability claims and compliance with relevant standards.
We provide:
- Vibration and shock testing under controlled climatic conditions
- Dust and salt fog exposure testing
- Altitude and low‑pressure simulation
- IP-rated water ingress, splash, and immersion testing
- Chemical exposure and environmental influence assessment
Frequently asked Questions
What EV Battery Testing Standards Does Resonate Testing Test Against?
Resonate Testing conducts EV battery testing against a wide range of international and regional standards to support product validation, performance assessment, durability evaluation, and safety verification.
Testing programmes can be structured to align with manufacturer requirements, regulatory expectations, and industry-recognised standards, including:
- DOT/UN 38.3 – ST/SG/AC.10/11/Rev.8 – Transport of Class 9 substances – Lithium metal, lithium ion and sodium ion batteries
- UN ECE R100 – Uniform provisions concerning the approval of vehicles with regard to specific requirements for the electric power train
- UN ECE R136 – Uniform provisions concerning the approval of vehicles of category L with regard to specific requirements for the electric power train
- IEC 62660 – Secondary Lithium-Ion Cells for the Propulsion of Electric Road Vehicles
- UL 2596 – Test Method for Thermal and Mechanical Performance of Battery Enclosure Materials
- UL 2580 – Standard For Safety – Batteries for Use In Electric Vehicles
- UL 9540A – Standard For Safety – Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems
- ISO 12405 – Electrically propelled road vehicles.Test specification for lithium-ion traction battery packs and systems
- ISO 6469‑1 – Electrically propelled road vehicles.Safety specifications — Part: Rechargeable energy storage system (RESS)
- GB 38031
- GB/T 31484‑2015
- GB/T 31486‑2015
- SAE J2288
- FreedomCAR – Electrical Energy Storage System Abuse Test Manual for Electric and Hybrid Electric Vehicle Applications
- SAE J2464, Electric and Hybrid Electric Vehicle Rechargeable Energy Storage System (RESS) Safety and Battery Abuse Testing
- SAE J2929 Safety Standard for Electric and Hybrid Vehicle Propulsion Battery Systems Utilizing Lithium-based Rechargeable Cells
- SAND 2005‑3123
Testing is carried out to defined procedures and agreed test plans, providing clear, traceable data to support design decisions, product development, and compliance activities.
What is UN 38.3, and do I need it for my batteries?
UN 38.3 testing is required for any lithium battery before it’s shipped. UN 38.3 is a United Nations standard encompassing 8 tests (covering pressure, temperature, crush, etc.) that all lithium-ion and lithium metal batteries must pass to be transported by air, sea, or road. If you make or distribute lithium batteries – whether for EVs, consumer electronics, or industrial use. UN 38.3 compliance is mandatory. Resonate Testing performs the entire UN 38.3 test sequence and provides the documentation you need (often called a “UN 38.3 Test Summary”) to satisfy airlines, shipping companies, and regulators.
What are UN ECE R100 and R136 in simple terms?
R100 and R136 are safety regulations for EV batteries. R100 applies to battery systems in electric cars, buses, and trucks. R136 applies to battery systems in electric motorcycles, scooters, and other light EVs. These regulations must be met to type-approve (certify) electric vehicles in many markets (Europe, UK, and others). They include tests to ensure a vehicle’s high-voltage battery won’t pose safety risks during normal driving or crashes. If you’re developing or selling an EV, your battery will need to pass R100 or R136 tests (depending on vehicle type). Resonate Testing has the expertise and equipment to perform all R100/R136 tests and help you through the approval process.
How is UN 38.3 different from R100/R136?
UN 38.3 is for transportation safety, whereas R100/R136 are for vehicle safety. Think of it this way: UN 38.3 makes sure you can ship the battery; R100/R136 make sure you can put it in a car or bike. UN 38.3 tests are done on the battery itself to simulate shipping conditions like flying on a plane or being jostled in a truck. R100/R136 tests are done as part of a vehicle’s certification to ensure the battery is safe throughout the life of the vehicle and during accidents. So even after passing UN 38.3, an EV battery still needs to pass R100 or R136 tests to be used in a road vehicle (and vice versa – a battery safe in a car must also be proven safe to ship). We handle both types of testing for you.
What if I only sell my batteries locally or integrate them into devices, do I still need these tests?
It depends on usage, but usually yes. If you ship your batteries (even locally by road), technically UN 38.3 applies. If your batteries are part of a consumer product, there may be other standards (like UL or IEC) to meet for product safety. And if your battery will be part of a vehicle or aircraft, there are definitely specific regulations (like R100 for cars or DO-311a for aircraft batteries). We can advise you on exactly which tests and standards are relevant for your situation – it’s part of our service as a test facilitator to help you navigate these requirements.
How long does testing take, and how much does it cost?
Timelines and costs vary by project, but we pride ourselves on efficiency. A full UN 38.3 test campaign can often be completed in a few weeks (sometimes faster if urgent slots are available). A comprehensive vehicle battery test program (R100/R136) might take a few weeks to a couple of months, depending on the number of tests and sample availability. We offer fast-track scheduling for urgent needs. Costs depend on the test scope and sample type – we provide transparent quotes, and we can suggest ways to optimize the test plan for cost-effectiveness (like combining tests where possible). Contact us for a tailored estimate; we’re upfront about pricing and aim to deliver great value through our depth of expertise (preventing costly retests).
Can I witness the tests?
Absolutely. We welcome and encourage client witnessing. You can come to our lab to be present during key tests (some clients send their engineers to work side by side with us). Our facility has dedicated viewing areas and remote camera feeds for safe observation of hazardous tests. If travel is difficult, we can set up live video streaming of your tests, or record and share detailed footage. We find that witnessing builds trust and helps your team understand the results better – plus, it’s often just exciting to see your battery in action during a big test!
Are your facilities up to the task for large batteries?
Yes – we’ve invested heavily in testing large EV batteries and systems. For instance, we operate the largest vibration shaker on the island of Ireland, able to subject a full-size battery pack (or even a whole vehicle subframe) to intense vibration. Our fire test chamber is designed for multi-kWh batteries, with blast protection and gas scrubbers to handle battery fires safely. We have high-power charging equipment to test fast-charge and high current scenarios. In short, whether it’s a small drone battery or a 100 kWh automotive pack, we have the equipment to test it properly.
How do I get started or get a quote?
Simply reach out to us. You can use our contact form or give us a call – we’ll respond quickly. One of our senior test engineers will talk with you (confidentially) about your battery, what you’re trying to achieve, and any known concerns or timelines. From there, we’ll propose a test plan and quote. This initial consultation is free and carries no obligation. We’re happy to sign an NDA if needed. Our aim is to provide value from day one – even if you’re just exploring options, we can offer guidance.
Your Custom Quote is Just a Click Away
We’ll give you a fast, straightforward estimate and engineering support to guide you through the process.
Tailored Approach
We pride ourselves on offering a tailored approach to meet your specific needs. Our bespoke test setups and rigid spec compliance ensure that you receive robust, accurate, and timely testing services. Whether it’s crush testing, fire testing, or the environmental aspects of vibration and shock testing, we are here to support you from initial discussions to report buy-off.
Expertise and Experience
With a wealth of expertise in test specification and component certification and validation, Resonate Testing continues to work with SMEs and primes alike within the automotive, aerospace, and space industries. Our experience and knowledge support you in achieving your goals and ensuring the highest standards of safety and performance.
Packaging and Shipping of Batteries
At Resonate Testing, we understand the importance of safe and compliant packaging and shipping of EV batteries. Our services ensure that your batteries are packaged and shipped according to the highest standards, providing peace of mind and reliability.
We follow stringent packaging standards to ensure that EV batteries are securely packaged for transportation. This includes using robust materials and designs that protect the batteries from physical damage during transit. Our packaging solutions are tailored to meet the specific requirements of each battery type, ensuring optimal protection 1.
Our shipping guidelines are designed to comply with international regulations and standards, such as UN38.3. These guidelines ensure that batteries are shipped safely and efficiently, reducing the risk of accidents and ensuring that they arrive at their destination in perfect condition. We provide detailed instructions and support to help you navigate the complexities of battery shipping 1.
We ensure that all packaging and shipping processes comply with relevant regulations and standards. This includes adhering to guidelines set by regulatory bodies such as the International Air Transport Association (IATA), the International Maritime Organization (IMO), and the United Nations (UN). Compliance with these regulations is crucial for the safe and legal transportation of EV batteries 1.
We offer customised packaging and shipping solutions to meet the unique needs of our customers. Whether you require specialised packaging for high-value batteries or need assistance with complex shipping logistics, our team is here to support you. We work closely with you to develop solutions that ensure the safe and efficient transportation of your batteries 1.
Our team of experts is available to provide guidance and support throughout the packaging and shipping process. From initial consultations to final delivery, we are here to help you navigate the challenges of battery transportation. Our goal is to ensure that your batteries are packaged and shipped safely, efficiently, and in compliance with all relevant regulations 1.
By offering comprehensive packaging and shipping services, Resonate Testing ensures that your EV batteries are transported safely and securely, meeting the highest standards of quality and reliability.
Standards Compliance
We adhere to numerous international standards for battery safety and abuse testing, helping you design and manufacture batteries that meet the highest safety and quality levels:
| # | Standard | Description |
|---|---|---|
| 1 | IEC 62660 | Secondary lithium-ion cells for the propulsion of electric road vehicles. |
| 2 | UN ECE R100 | Uniform provisions concerning the approval of battery electric vehicles with regard to construction and functional safety. |
| 3 | GB 38031-2025 | Safety requirements for power batteries for electric vehicles. |
| 4 | GB/T 31467.3-2015 | Lithium-ion traction battery pack and system for electric vehicles – Part 3. |
| 5 | ISO 12405 | Electrically propelled road vehicles. |
| 6 | UL 2580 | Standard for safety – batteries for use in electric vehicles. |
| 7 | SAE J2464 | Electric and hybrid electric vehicle rechargeable energy storage system safety and abuse testing. |
| 8 | SAE J2929 | Safety standard for electric and hybrid vehicle propulsion battery systems using lithium-based cells. |
| 9 | FreedomCAR | Electrical Energy Storage System Abuse Test Manual for electric and hybrid vehicles. |
| 10 | ISO 6469-1 | Safety specifications – Part 1: on-board rechargeable energy storage system (RESS). |
**U.N. Manual of Tests and Criteria, Sub-section 38.3 (UN 38.3).