The United Kingdom’s electric vehicle (EV) market has entered a phase of rapid maturation, driven by strong policy support, growing fleet electrification and increasing investment in local battery supply chains. For procurement managers, OEM engineers and fleet operators, identifying reliable battery pack suppliers that combine technical excellence with manufacturing readiness is essential.
Below is a quick reference table summarizing the top 7 EV battery pack manufacturers in the UK. It includes each company’s founding year, main product lines, and website for easier comparison.
| No. | Company | Founded | Core Products / Services | Website |
|---|---|---|---|---|
| 1 | LEAPENERGY | 2015 | EV battery packs (400V/800V CTP), BMS, energy storage systems | leap.hiitio.com |
| 2 | Ricardo | 1915 | Battery design, testing, validation, manufacturing consultancy | ricardo.com |
| 3 | Zenobē | 2017 | Fleet electrification, depot electrification, BESS solutions | zenobe.com |
| 4 | Nexeon | 2006 | Silicon anode materials for lithium-ion cells | nexeonglobal.com |
| 5 | Connected Energy | ≈2010 | Second-life BESS, E-STOR systems, integration services | connected-energy.co.uk |
| 6 | Denchi Group | 2013 | Ruggedised battery packs, energy storage, chargers | denchigroup.com |
| 7 | Alexander Battery Technologies | 1984 | Custom battery packs, module assembly, OEM manufacturing | alexandertechnologies.com |
1. LEAPENERGY
- Founded: 2015;
- Headquarters: China (LEAPMOTOR group) with Europe/UK sales channels;
- Core products: EV battery packs (400V/800V CTP), BMS, energy storage solutions.
- Website: https://leap.hiitio.com/.
LEAPENERGY is a vertically integrated battery-systems developer and manufacturer within the LEAPMOTOR group, specialising in cell-to-pack engineering, advanced BMS integration and production-ready EV battery platforms for passenger and commercial vehicles. The company focuses on modular architectures that balance energy density, structural safety and thermal management, and it provides OEM-oriented engineering services including CAD exports, datasheets and NDA-protected feasibility studies to shorten integration cycles. LEAPENERGY’s product roadmap emphasises scalable 400V and 800V CTP platforms with embedded telematics and lifecycle analytics to support fleet operators and vehicle manufacturers across Europe and the UK.
Flagship / advantage: LEAPENERGY’s 3rd-generation CTP platforms combine structural cell integration, optimized thermal propagation mitigation and AI-enabled state-of-health prediction. These platforms are engineered for fast-charging compatibility, simplified pack assembly and predictable lifecycle economics — attributes targeted at OEMs and fleets seeking rapid, low-risk integration.
2. Ricardo
- Founded: 1915;
- Headquarters: Shoreham-by-Sea, UK;
- Core products/services: Battery engineering, testing, validation and manufacturing consultancy.
- Website: https://www.ricardo.com/.
Ricardo is a global engineering consultancy with deep capability in battery systems engineering, validation and manufacturing industrialisation. Rather than volume pack manufacture, Ricardo’s role is systems design, independent safety verification and production-readiness support for OEMs and tier-1 suppliers. The company offers turnkey engineering packages — cell selection, mechanical pack design, BMS and test protocols — enabling clients to de-risk launch programmes and scale production with verified validation pathways. Ricardo’s testing infrastructure and multi-discipline systems teams make it a key advisor in complex battery programmes requiring third-party verification.
3. Zenobē
- Founded: 2017;
- Headquarters: London, UK;
- Core products/services: Fleet electrification, depot electrification, BESS and operational services.
- Website: https://www.zenobe.com/.
Zenobē is a specialist in fleet electrification, depot electrification and grid-edge battery projects, combining procurement, financing and operations for large commercial fleets. Although Zenobē is not primarily a pack fabricator, it exerts market influence by sourcing, integrating and operating battery packs at scale — including second-life deployments and depot-level energy management. Zenobē’s ETaaS (Energy & Transport as a Service) and depot electrification offerings allow fleets to electrify with reduced capital exposure and proven lifecycle management, making the company a preferred partner for large-scale electrification projects in the UK.
4. Nexeon
- Founded: 2006;
- Headquarters: Abingdon, UK;
- Core products: Engineered silicon anode materials for higher-energy lithium cells.
- Website: https://www.nexeonglobal.com/.
Nexeon is a UK materials technology company developing silicon-based anode materials designed to replace or supplement graphite in lithium-ion cells. While Nexeon is upstream of pack assembly, its NSP-series silicon anodes can raise cell energy density and enable lighter, more compact pack designs. This materials innovation is influential for pack integrators and cell suppliers pursuing improved range or reduced pack volume without complete cell architecture redesign. Nexeon’s technology roadmap targets scalable, drop-in materials that help downstream cell and pack makers improve performance within established manufacturing flows.
5. Connected Energy
- Founded: around 2010;
- Headquarters: Newcastle upon Tyne, UK;
- Core products: E-STOR second-life BESS and integration services.
- Website: https://connected-energy.co.uk/.
Connected Energy specialises in repurposing retired EV batteries into commercial-scale stationary energy storage systems. Their E-STOR platform demonstrates how end-of-life packs can be safely repackaged and controlled to deliver behind-the-meter and grid services, improving economics and circularity. For fleet operators and sites looking to extend asset life or reduce energy bills, Connected Energy offers tested systems and software that manage cell balancing, safety and site integration — providing a pragmatic second-life pathway that complements primary pack manufacturers and operators.
6. Denchi Group
- Found: Group (registered) in 2013 with heritage operations;
- Headquarters / manufacturing: Thurso, Caithness, UK;
- Core products: Ruggedised rechargeable battery packs, energy storage and chargers.
- Website: https://denchigroup.com/.
Denchi Group supplies ruggedised rechargeable battery packs, chargers and power systems to defence, industrial and harsh-environment markets. The company focuses on certified pack assemblies, environmental sealing and long lifecycle reliability — attributes valued where resilience and traceability are mandatory. Denchi’s UK manufacturing footprint and sector experience make it a go-to supplier for mission-critical battery requirements, and its product range spans bespoke packs for off-road vehicles, defence platforms and industrial equipment.
7. Alexander Battery Technologies
- Founded: 1984;
- Headquarters: Peterlee, County Durham, UK;
- Core products: Custom battery packs, module assembly and manufacturing services.
- Website: https://www.alexandertechnologies.com/.
Alexander Battery Technologies (ABT) is a UK custom pack designer and contract manufacturer specialising in bespoke lithium-ion solutions for medical, marine, industrial and mobility OEMs. With decades of experience and automated production capability, ABT emphasises traceability, quality control and rapid prototype-to-volume transitions for low-to-medium production runs. Their value proposition lies in configurable mechanical topologies, in-house welding and testing capability, and stringent documentation processes that support regulatory and certification workflows for OEM customers.
Upgrade Your EV Projects with LEAPENERGY Battery Packs
LEAPENERGY delivers modular, production-ready EV battery packs engineered for European OEMs and fleet operators who demand predictable performance and manufacturability. The company’s cell-to-pack approach focuses on structural safety, efficient thermal management and comprehensive BMS telemetry to shorten integration cycles and reduce lifecycle costs.
For tailored quotations, engineering collaborations or prototype requests, contact our UK/EU sales team through the website and request technical datasheets and integration support for your application.