Millor Battery
Millor Battery is a Barcelona-based high-tech firm designing and manufacturing custom modular lithium-ion battery packs (flexiEBUST for heavy EVs and flexiFIVEL for light EVs) using proprietary Smart BMS and thermal management technology for OEM manufacturers, fleet operators, and motorsport teams.
- Company typePrivate
- Founded2014
- HeadquartersBarcelona, Spain
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What Millor Battery does
Millor Battery is a Barcelona-based high-tech company founded in 2014 that designs, develops, and manufactures custom lithium-ion battery packs for hybrid and electric vehicles in medium-series productions. The product portfolio centers on two proprietary platforms: flexiEBUST, a high-voltage (350V and 650V) modular battery system for heavy electric vehicles such as buses and trucks with capacities from 27 to 500kWh; and flexiFIVEL, a low-voltage (up to 120V) modular system for light electric vehicles including e-bikes, scooters, motorbikes, and microcars. Both product lines are powered by the company's proprietary Smart BMS (Battery Management System) and Smart Active Thermal Management System, which the company claims deliver >30% weight reduction, >50% lifecycle improvement, 800kW output power capability, and 10-year lifespan under intensive professional use. The systems hold UN/ECE-R100.rev.2 automotive type approval, ISO 6469 compliance, and UN 38.3 transport certification.
The company serves OEM manufacturers of electric vehicles, fleet operators, motorsport teams, and engineering partners through a direct, consultative sales model with project-based custom pricing and multi-year contracts. Distribution is concentrated in direct OEM engagement (bus, truck, light-vehicle manufacturers), supplemented by partnerships with technology centers (EURECAT, IDIADA) for validation and integration. The business model combines commercial battery pack sales and custom development services with revenue from EU and Catalan R&D project collaborations (COBRA, BATTERY PLUS, REFER, GREENCHARGE, REVIA, BATECHAIN, INTELLIGENT, PERTE VE). The company operates a factory in Cerdanyola del Vallès (Barcelona) with a small team of 1-10 employees and is led by founder and CEO Baltasar López, supported by Technical Director Guillem Penalva.
Millor Battery firmographics
Firmographics- Name
- Millor Battery
- Legal name
- MILLOR BATTERY
- Website
- https://millorbattery.com
- Company type
- Private
- Founded year
- 2014
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Millor Battery is a Barcelona-based high-tech firm designing and manufacturing custom modular lithium-ion battery packs (flexiEBUST for heavy EVs and flexiFIVEL for light EVs) using proprietary Smart BMS and thermal management technology for OEM manufacturers, fleet operators, and motorsport teams.
- Ownership category
- akta.pro rank
Millor Battery industry classification
Industry- Product category
- Electric Vehicle Battery Systems
- NAICS
- Battery Manufacturing (33591), Battery Manufacturing (335910)
- akta.pro primary industry
- Battery Pack & Module Manufacturing (EV) (IMACACAA)
- akta.pro secondary industries
- Truck & Commercial Vehicle Electrification Manufacturing (eAxles/Battery Packs/Fuel Cells) (IMACABAK), Battery Packs & Energy Storage for Micromobility Manufacturing (IMACAOAE), Battery Management Systems (BMS) & Pack Electronics Manufacturing (EUAFABAJ)
Keywords
Where Millor Battery is headquartered
LocationHeadquarters
- HQ city
- Barcelona
- HQ country
- Spain
- HQ region
- Europe
Offices1 record
Markets served
Millor Battery business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Technology or R&D, Operations, Personnel, Infrastructure, Marketing or Sales
Revenue model
- Battery Pack Sales: Sale of proprietary smart modular battery packs (flexiEBUST for high voltage heavy vehicles and flexiFIVEL for low voltage light vehicles). Custom-designed battery solutions for OEM manufacturers, fleet managers, and racing teams. Revenue is generated through project-based contracts with vehicle manufacturers requiring tailored energy storage solutions.
- Custom Development Services: Research, development, and integration services for energy storage and recharging systems. The company offers customized battery solutions based on customer requirements with minimum time to market. Includes design, development, manufacturing, and installation services.
- R&D Project Collaborations: Participation in European and Catalan R&D projects (COBRA, BATTERY PLUS, REFER, GREENCHARGE, REVIA, BATECHAIN, INTELLIGENT, PERTE VE) providing additional revenue streams through grants and strategic partnerships.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom project-based pricing for battery solutions |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels7 records
Millor Battery product offering
Product offeringCore offering
Millor Battery designs, develops and manufactures proprietary modular lithium-ion battery packs (flexiFIVEL for low-voltage light vehicles and flexiEBUST for high-voltage heavy vehicles) for hybrid and electric vehicle OEMs, fleet operators, and racing teams requiring tailored energy storage solutions in medium-series productions. The packs are built on the company's own Smart BMS and Smart Active Thermal Management technologies, delivering certifications (UN/ECE-R100.rev.2, UN 38.3, ISO 6469) and supporting custom development, integration, and validation services.
Product overview
Millor Battery is a high-tech company specializing in the design, development, and manufacturing of battery packs for hybrid and electric vehicles. The product portfolio consists of two main battery product lines: flexiFIVEL (low voltage up to 120V for light vehicles like e-bikes, scooters, motorbikes, and microcars) and flexiEBUST (high voltage starting at 350V for heavy vehicles like e-buses and e-trucks). Both product lines are powered by proprietary Smart BMS (Battery Management System) and Smart Thermal Management technologies. The company also offers advanced Active Thermal Management enabling 800kW output power. All products include UN 38.3 and UN/ECE-R100rev.2 certifications.
Differentiator
Problem solved
Functional benefit
Brands
- flexiFIVEL: Low voltage battery packs for scooters, motorbikes, microcars and more.
- flexiEBUST
Products and services
- flexiFIVEL modular battery system Low-voltage modular battery packs (up to 120V) for light electric vehicles including e-bikes, scooters, motorbikes, and microcars, integrating Smart BMS and Smart Thermal Management.
- flexiEBUST modular battery system High-voltage modular battery packs (350V and 650V variants, 27–500kWh) for heavy electric vehicles including e-buses, e-trucks, and other heavy-duty applications, with Smart BMS, Active Thermal Management, and UN/ECE-R100.rev.2 automotive type approval.
- Custom battery development and integration services Bespoke engineering, design, manufacturing, and integration services for vehicle-specific battery and recharging systems, including homologation support and on-vehicle integration.
- In-house battery laboratory testing and validation services Empirical life expectancy and performance validation services using high-power cyclers and thermal chambers to characterize cells, modules, and full packs under real demand profiles, including pre-homologation testing.
Quantifiable outcome
- Electric minibus completed two 8-hour shifts (16 hours total) with single recharge, enabling fleet replacement of diesel buses without duplication
- +5 more outcomes
Companies that use Millor Battery
Customer profileNamed customers17 records
Segments4 records
Ideal customer profiles4 records
Millor Battery technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability1 record
Feature6 records
Millor Battery partnerships and signals
Strategic signalPartnerships
13 partnerships are on record, tiered core, major and minor.
- COBRA Consortium (CObalt-free Batteries for FutuRe Automotive Applications)coreEuropean consortium for cobalt-free battery development has chosen Millor Battery for the production of the first cobalt-free batteries for electric cars in Europe. The partnership leverages Millor Battery's experience in design, development, and production of both low and high voltage batteries. First functional prototypes targeted for early 2022 with project results by end of 2023.
- IREC (Institut de Recerca de l'Energia de Catalunya)coreLeading Catalan energy research institute that is part of the COBRA consortium and has relied on Millor Battery for strategic collaboration in cobalt-free battery development. Representative of the company's commitment to scientific, technological, and industrial development of batteries in Europe.
- TMB (Transports Metropolitans de Barcelona)corePublic transport authority conducted 2-year pilot test with Millor Battery's flexiEBUST batteries in electric minibus on Barcelona city lines. The prototype completed two 8-hour shifts with single recharge in both winter and summer seasons through Barcelona's challenging orography, validating the battery technology in real-world conditions.
- EURECATcoreTechnology center partner for intensive laboratory validation of battery prototypes. EURECAT conducted laboratory testing as part of the validation process before field testing with TMB in Barcelona.
- IDIADAcoreAutomotive engineering partner that electrified the minibus and conducted validation testing on IDIADA test circuits before the 2-year Barcelona field trial with TMB.
- INDCARmajorVehicle body manufacturer partner for electric minibus projects. INDCAR bodywork combined with Millor Battery battery systems and IDIADA electrification for the TMB pilot program.
- FIA - Formula EmajorFédération Internationale de l'Automobile partnership for Formula E e-motor sport engineering, providing high-performance battery solutions for electric racing applications.
- REFER (Catalan Project)minorCatalan R&D project focused on second life batteries in stationary applications, extending battery lifecycle value beyond initial electric vehicle use.
- GREENCHARGE (European Project)minorEuropean project for stationary storage in recharging applications, applying e-mobility battery expertise to renewable energy and charging infrastructure.
- REVIA ProjectminorExperimental development of advanced second-life battery solutions focused on sustainability, circularity, and digitalization.
- BATECHAIN ProjectminorDevelopment of a battery manufacturing ecosystem for electric vehicles based on material sustainability, digitalization, and industrial competitiveness.
- INTELLIGENT ProjectminorInnovative and sustainable high-voltage Li-ion cells for next generation electric vehicle batteries development project.
- PERTE VE ProjectminorSpanish strategic project for electric vehicle value chain development, part of PERTE (Strategic Project for Economic Recovery and Transformation).
Scale indicators10 records
Recent moves6 records
Expansion highlights5 records
Millor Battery competitors and assessment
Company assessmentBroad incumbents
- CATL: World's largest EV battery manufacturer with expanding European footprint via cell and pack plants in Germany and Hungary. Defines the price/performance benchmark Millor must beat in OEM pitches.
- EnerSys: Global industrial battery and energy storage incumbent with a fast-growing lithium motive-power business. Serves motive, reserve power, and commercial EV segments with broad portfolio overlap.
Direct peers
- Voltabox: German developer of customized lithium-ion battery systems for commercial vehicles, intralogistics, and mobile machinery. Direct competitor in medium-series, OEM-embedded battery pack manufacturing.
- AKASOL (BorgWarner): German supplier of high-energy Li-ion battery systems for commercial vehicles (buses, trucks, off-highway), now part of BorgWarner. Competes with Millor's flexiEBUST in the same heavy-duty electrification RFPs.
- Forsee Power: French battery systems integrator specializing in Li-ion packs for electric and hydrogen buses, trucks, trains, and boats. Closest analogue to Millor in target segments (heavy-duty commercial vehicles) and modular OEM-embedded business model.
- Leclanché: Swiss manufacturer of Li-ion battery systems for e-buses, e-trucks, commercial fleets, and stationary storage, also addressing marine and rail. Comparable custom-pack, OEM-embedded approach with a similar European base.
- Xalt Energy (EnerSys): North American supplier of large-format Li-ion battery packs for heavy-duty commercial vehicles (buses, trucks, marine), now part of EnerSys. Comparable in targeting medium-volume commercial EV pack programs.
- Kreisel Electric: Austrian battery pack specialist serving automotive, motorsport, marine, and stationary storage with custom liquid-cooled Li-ion systems and high-performance BMS. Highly comparable to Millor's racing-rooted engineering culture and OEM-embedded custom-pack model.
- BMZ Group: German Li-ion battery pack manufacturer serving e-mobility, energy storage, and industrial applications with custom and series solutions. Comparable custom-pack portfolio across light and heavy EV segments.
Emerging players
- Skeleton Technologies: Estonian energy storage company developing ultracapacitors and SuperBattery technology with European automotive and grid customers. Adjacent in advanced battery/energy storage IP and European OEM relationships.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Millor Battery social profiles
Digital presenceMillor Battery compliance and trust
Trust signalCompliance4 records
Millor Battery financial estimates
Financial estimateRevenue estimate
Valuation estimate
Millor Battery leadership team
Management profileNumber of profiles
Profiles3 records
Millor Battery funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Millor Battery M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Millor Battery
What does Millor Battery do?
Millor Battery designs, develops and manufactures proprietary modular lithium-ion battery packs (flexiFIVEL for low-voltage light vehicles and flexiEBUST for high-voltage heavy vehicles) for hybrid and electric vehicle OEMs, fleet operators, and racing teams requiring tailored energy storage solutions in medium-series productions. The packs are built on the company's own Smart BMS and Smart Active Thermal Management technologies, delivering certifications (UN/ECE-R100.rev.2, UN 38.3, ISO 6469) and supporting custom development, integration, and validation services.
Is Millor Battery a public or private company?
Millor Battery is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Millor Battery founded?
Millor Battery was founded in 2014. It employs 1 to 10 people.
Where is Millor Battery based?
Millor Battery is headquartered in Barcelona, Spain, in the Europe region.
How does Millor Battery make money?
Three revenue lines are on record. Battery Pack Sales are the primary driver. The others are custom Development Services and R&D Project Collaborations.
Who are Millor Battery's main competitors?
Broad incumbents on record are CATL and EnerSys. Direct peers are Voltabox, AKASOL (BorgWarner), Forsee Power, Leclanché, Xalt Energy (EnerSys), Kreisel Electric and BMZ Group. Skeleton Technologies is listed as an emerging player.
Does Millor Battery have an API?
No public API is recorded for Millor Battery.
What industry is Millor Battery in?
Millor Battery's product category is Electric Vehicle Battery Systems. Its primary akta.pro industry code is IMACACAA, Battery Pack & Module Manufacturing (EV), with a secondary code of IMACABAK, Truck & Commercial Vehicle Electrification Manufacturing (eAxles/Battery Packs/Fuel Cells). Its NAICS code is 33591.