PASSENGER VEHICLES
We are a trusted partner for the design, delivery and integration of battery packs on passenger vehicles.
Pack Design
Our battery pack designs are built on more than a decade of hands-on engineering experience and over 40 successfully delivered programmes. Working with multiple OEM and battery suppliers gives us a deep understanding of the latest technologies, industry requirements, and real-world challenges from the field.
This experience enables us to develop reliable, production-ready battery packs that are optimised for performance, safety, reliability and cost.
Cells
Selecting the right cell is essential for balancing performance, cost, safety, and service life. We have extensive experience evaluating and integrating cells across different chemistries and form factors.
Our close relationships with leading cell manufacturers give us insight into the latest technologies, development roadmaps, and real-world performance. We use real engineering data and knowledge to recommend the best cell for your application.
Quality
We engineer battery packs to meet each customer’s charging, power, and energy requirements. Each design benefits from lessons learned across previous projects and proven engineering practices to ensure high quality and reliability.
We conduct rigorous engineering reviews and validation to verify functionality, durability, and production readiness. The result is a robust battery system that delivers consistent performance throughout its service life.
Selected projects
MHEV – 48V LFP
A123Systems’s 48V LFP battery pack delivers exceptional power performance, with peak discharge capability exceeding 80C. Despite its high-power operation and multiple daily cycles, the pack achieves impressive cycle life without the need for liquid cooling.
JURA Engineering was involved from the beginning of the project, working with major European OEMs to define and capture the technical requirements for MHEV applications. We supported A123 Systems throughout pack development and vehicle integration, and later provided aftersales engineering support, including analysis of field issues and fleet monitoring.
BEV – 400V NCM & LFP
Vinfast grew very rapidly from an emerging startup to a Nasdaq-listed company, delivering almost 200k BEVs in 2025.
JURA’s director and engineering team have been involved with VinFast for several years, working closely with leading battery suppliers including CATL, Gotion, SVOLT and CALB to develop battery packs and integrate them into production vehicles at record speed. Several projects progressed from initial supplier nomination to full mass production in less than 12 months.
In total, more than 10 different battery packs for BEV passenger vehicles have been developed, covering capacities from 18 kWh to over 130 kWh and using both LFP and NCM chemistries.
Frequently Asked Questions FAQ
What type of support do you offer to OEMs and battery suppliers?
We provide OEMs and battery suppliers with specialist engineering support across the full battery development lifecycle. Our flexible engagement models are designed to give you access to the right expertise, exactly when you need it.
Can you support specific engineering work packages?
Yes, we can support targeted engineering tasks or specific challenges. For example, we can reduce cost or weight of existing design, optimise thermal design and control strategies, or resolving complex mechanical, electrical, BMS or integration issues.
Can you provide additional engineering capacity for a limited time?
Yes. When your internal team needs additional expertise or capacity, we can provide specialist engineers for a defined period or project phase. This could include battery mechanical engineers, electrical engineers, BMS software engineers, systems engineers, or other specialist resources.
Can you take ownership of the full battery project?
Yes. For customers looking to outsource their battery development, we can take ownership of the complete programme from initial concept and system definition through detailed design, validation and certification, all the way to production readiness.
Can you help for low volume custom pack design?
Yes. We support battery programmes of all sizes, including low-volume battery pack projects. Whether you need assistance with a specific engineering task or a complete end-to-end battery development programme, we can tailor our level of support to your needs. If you already have a battery pack design, we also offer independent design reviews to identify potential risks and optimisation.
Can your designs meet the requirements for EU market?
Yes, we can engineer packs or support your team in the delivery of packs that fully meet relevant EU regulations. We can also support you to understand what are the OEM new responsibilities under the EU Battery Regulation (2023/1542). You can find out more here.
What testing & certification are usually conducted?
The Design Validation (DV) and Production Validation (PV) scope will be agreed at the start of the project before nomination. Normally the validation will include performance, safety and durability tests following international standards such as ISO 19453-6, ISO 12405-4, UL2580, UN ECE R10/CISPR 25 (EMC), ECE r100, UN38.3, and specific customer test cases.
Can you provide support for specific engineering work packages?
Yes, we can support targeted engineering tasks or specific challenges. For example we can reduce cost or weight, optimise thermal design and control strategies, or resolving complex mechanical, electrical, BMS or integration issues, etc.
Can you provide additional engineering capacity for a limited time?
Yes. When your internal team needs additional expertise or capacity, we can provide specialist engineers for a defined period or project phase. This could include battery mechanical engineers, electrical engineers, BMS software engineers, systems engineers, or other specialist resources.
Can you take ownership of the full battery project?
Yes. For customers looking to outsource their battery development, we can take ownership of the complete programme from initial concept and system definition through detailed design, validation and certification, all the way to production readiness.
Can you review BMS software and diagnostics?
Yes, we provide detailed reviews covering all major functions such as SOx algorithm, power and current limits, thermal logic, periodic wake ups, etc. We also perform detailed diagnostics reviews and simplification for nuisance-fault reduction and better serviceability.
Can you help for low volume custom pack design?
Yes. We support battery programmes of all sizes, including low-volume battery pack projects. Whether you need assistance with a specific engineering task, additional technical capacity, or a complete end-to-end battery development programme, we can tailor our level of support to your needs. If you already have a battery pack design, we also offer independent design reviews to identify potential risks, validate the design, and help ensure it is robust, reliable, and ready for production.
What testing & certification are usually conducted?
The Design Validation (DV) and Production Validation (PV) scope will be agreed at the start of the project before nomination. Normally the validation will include performance, safety and durability tests following international standards such as ISO 19453-6, ISO 12405-4, UL2580, UN ECE R10/CISPR 25 (EMC), ECE r100, UN38.3, and specific customer test cases.
Can your design meet the requirements for EU market?
Yes, we can engineer packs or support your team in the delivery of packs that fully meet relevant EU regulations. We can also support you to understand what are the OEM new responsibilities under the EU Battery Regulation (2023/1542). You can find out more here.