Advanced Lithium Power Systems

Our mission : to make high performance batteries affordable for your application.

A modular battery system designed for small and medium series : more cost effective, more flexible and faster to implement.

A modular battery system designed for small and medium series : more cost effective, more flexible and faster to implement.

Hence, all vehicle and machine manufacturers have access to a simple and efficient solution for clean power.

Each vehicle type requires a minimum of engineering work depending on the needed performance and work environment. WATTALPS solution requires only a few weeks of engineering for implementation. The R&D phase is thus considerably reduced.

WATTALPS batteries being modular, integrators can capitalize on their developments on their whole product range and therefore significantly improve their return on investment.

  • Construction equipment

  • Material handling equipment

  • Special machines

  • Agricultural applications

Worksite mobile charging stations

Our lithium-ion battery modules are used to manufacture mobile charging stations, allowing to quickly start your works with clean energy.

Automotive market

With their remarkable energy density, WATTALPS batteries are also well adapted for an integration into cars. Our modular batteries enable to turn IC engine vehicles into fully electric ones or to design new full electric vehicles easily.

WATTALPS goal : innovate to make integration of high performance batteries possible in all type of vehicles.

World class energy density

Our state-of-the-art energy density modules combined with a modular mechanical concept allows to fit a lot of energy in small spaces.

Length: 335 mm
Width: 200 mm
Height: 90 mm
Energy: 1,6 kWh

A modular offer to reduce costs

Our battery systems are composed of a set of assembled standard bricks to offer you high performance solutions adapted to your constraints and to avoid specific developments.

Premium liquid cooling

Whatever your region or climate, from very cold to very hot (-30°C / +50°C), our temperature control technology ensures optimal performances in all conditions.

Battery recycling at the end of life

The recycling of lithium batteries is a key driver of clean power development. WATTALPS commits to recycle at its expense all the batteries that the company puts on the market.

WATTALPS technology is protected by several patents.

Design and process: an automotive quality manufacturing process

Assembled in France WATTALPS high performance batteries are equipped with standard cells manufactured in very high quantity (18650 – the mostly used format). In this format, most of the cell chemistries are available and comes from renowned Asian manufacturers (mainly Korean and Japanese). The customer has the assurance to always have access to state-of-the-art performance.

The thermal regulation of the battery has been developed with the know-how and expertise of CEA, a famous French Technology Research Institute. It is combined with a high-end safety electronic system coming from the famous German Technology Research Institute, Fraunhofer IISB. These two technologies and a rigorous product development ensure optimal life and high safety in all circumstances.

Fulfilling automotive regulations, a special attention is given to the manufacturing of the batteries to make this product reliable.

Our system is composed of three elementary « bricks » which can be freely combined allowing multiple configurations.

WATTALPS’ goal is to offer a range of standard and modular products so as to make their integration into vehicles or charging stations faster, more efficient and more cost effective. Custom developments of specific auxiliaries can be studied upon request.

The lithium battery modules

We offer several types of battery modules, all fitting in the same casing, with the same interface, which can be split in 2 families:

  • ENERGY : for long range and autonomy, with 2 products of 32 or 48V with 1,6 kWh energy and 3 kW power per module.
  • POWER : for very high power application, with 2 products of 24 or 36V with 0,5 kWh energy and 5 kW power.

Connecting these modules in series or parallel allows for batteries with a voltage ranging from 48 V up to 1,000 V. The energy density of our modules positions our battery at the edge of the technology by approaching 270 Wh/L.

regulation system

This « brick » controls and optimizes battery temperature in order to improve life, safety and performance. This system can be chosen in three different configurations. A base sub-system ensures homogeneous temperature in the battery system and can be completed by a heating sub-system or a heating/cooling sub-system depending on the climatic constraints to fulfill.

BMS and battery
junction box

This « brick » is the central control unit of the battery which includes power connections communication and safety control. It also includes current management (current sensor, isolation check, contactors, fuse…). It is available in two configurations for low and high voltage applications.

WATTALPS CREW : a combination of experienced and talented people to build an ambitious industrial project in France

Left to right:

Our energy and our know-how to serve our industrial partners and our society

With a 45 years cumulated experience in design, manufacturing and use of batteries, in mechanical, electrical and electronical systems, the three partners of WATTALPS form a very complementary team.

They also gather the cultures of three countries at the boarder of the Alps (France, Germany and Italy). They maintain a “crew” spirit to get the best of their competences and energies. The “ALPS” particle in the brand name WATTALPS refers to the mountaineering roots, symbol of will, commitment and solidarity to come through the hardest challenges.

The objective is to build a cleaner industry with a great respect of citizen needs (pollution, noise). It is embodied by strong commitments like recycling 100% of the lithium batteries sold by the company.


InnoEnergy is the innovation engine for sustainable energy across Europe. It supports and invests in innovation at every stage of the journey – from classroom to end-customer. With its network of partners it builds connections across Europe, bringing together inventors and industry, graduates and employers, researchers and entrepreneurs, businesses and markets. InnoEnergy works in three essential areas of the innovation mix: trainings, innovation projects and services for start-ups…


17 years experience in innovation, product development and management in big groups : IFSTTAR for VALEO, BOSCH, CEA… Matthieu has always been keen on energy issues for mobile vehicles. He dedicated his career to this subject and spent 9 years in CEA to develop lithium battery systems for these markets. His ambition is now to build a sustainable industrial project, creating jobs in France.

Manuel RONCO

26 years experience in production, aftersales and business unit management for SMEs : POLARIS, AIXAM-MEGA, SPIT… Manuel has a deep understanding of customer and manufacturer’s needs. He has 15 years specific experience in the field of batteries for electric vehicles.


10 years experience in design of mechanical and electrical systems, and 7 years specifically on lithium batteries :TRW, VOLVO TRUCKS, IVECO BUS, CEA… Jean-Noël is expert in battery design and manufacturing.

WATTALPS has built an ecosystem of partners supporting its development

Energy and synergies ! Research, industry, institutions… WATTALPS has already developed strong links with renown partners; a sign of confidence in the project and the “crew” leading it.


Apply for a job at WATTALPS

The WATTALPS Adventure is built on commitment and solidarity of its team members. In a spirit of honesty, transparency and liberty, we want to offer quality products at a competitive price.

With rapid growth opportunities and to fasten our development, we are looking for men and women moved by these same values and motivated to participate in this collective adventure of building a new society.

Embedded electronics MSc / Engineer

With a MSc or PhD, you have a minimum of 3 years experience in embedded software development, embedded electronics in the field of automotive and/or agriculture, construction equipment.

Proven capacities in embedded hardware and software is required. A taste for field work and team spirit, proactive and capable of working in autonomy. Good writing capacity is required to establish the documentation linked to the product safety. All tasks will be supported by a team of experts.

You are motivated, skilled and conscientious to implement electronic functions in a demanding environment.

News and WATTALPS « TechLetter »

We issue a free « TechLetter » on a monthly basis, to bring our expert look on energy storage for mobile applications : technology, industry, opportunities, environment.

Lithium-ion battery aging

Factors influencing the aging of lithium-ion batteries The main factors influencing the aging of lithium-ion batteries are : The number of cycles (charge/discharge) This is the most commonly used factor to chose a battery since it permits to estimate the return on...

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WATTALPS opens its first series production plant

Following its growth, WATTALPS opens its first series production plant! This building is made of 600 m² of production unit and 200 m² of offices. It increases WATTALPS production capacity by a factor 5. The production unit is composed of a module assembly area, a...

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WATTALPS has raised funds to follow market demand!

WATTALPS has finalized a fund raising of 2.2 M€ to grow faster and follow market demand. WATTALPS has realized a capital increase of 1.1 M€ with a complementary debt raising of 1.1 M€, for a total of 2.2 M€. Eximium, Family-office, takes a minority share in Wattalps....

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WATTALPS gets stronger to grow faster!

WATTALPS is finalizing a financing of 1.6 to 2 M€ to secure its growth and follow the market demand. WATTALPS has now entered in exclusive discussions with two ventures to finalize the deal: a European private equity fund specialized in energy and green tech...

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WATTALPS presented its offer at POLLUTEC

WATTALPS has presented its offer in the heart of the POLUTEC fair, on the "pitch ring" placed on the "Place des Lumières". Invited by the organization, WATTALPS could present its offer to make electrification of construction equipment possible and bring zero emission...

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Tel : + 33 4 58 00 54 91

96 rue de Corporat
38430 MOIRANS – France


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