New high-performance lithium LiFePO4 cells

Lithium Iron Phosphate - LFP - LiFePO4-cell

After more than a year of intensive testing, we are now using a new high-performance lithium LiFePO4 cells to replace the cells used in our products.

This new generation of cell retains all the safety and robustness of those used in our products to date and adds two major improvements:

  • Specific Energy improved by 25% : It is possible to accommodate 1/4 more energy in the same volume.
  • Improved operation life by 50% : Cycling tests performed show a performance of 3000 cycles of full charge-discharge cycles (100% depth of discharge) at 1C. This represents a 50% increase in the number of cycles compared to the previous generation.
    At a DoD of 80% at 1C, the number of cycles performed rises to 4500.

Below chart shows the estimated number of cycles for our new generation of Lithium LiFePO4 cells, according to the discharge power and DOD figures. The test conditions are those of a laboratory (constant temperature of 25°C, constant charge and discharge power).

Lithium Iron Phosphate Life Cycle
Life Cycle chart of new LiFePO4 cell generation

We can read from the chart the below figures :

  • 3 000 cycles at 100% DoD @ 1C
  • 4 500 cycles at 80% DoD @ 1C
  • 10 000 cycles at 60% DoD @ 1C
  • etc.

It should be noted that following the number of completed cycles, the cell still have a nominal capacity > 80% of the original capacity.

Our main product ranges: PowerBrick, PowerRack and PowerModule, will benefit in the coming months from this new generation of cells with an increase in capacity, a reduction in weight but also a significantly improved lifespan.

Stay tuned for more information

PowerRack and PowerBrick batteries now compatible with STUDER INNOTEC inverters

The PowerRack® and PowerBrick® battery ranges are now compatible with STUDER INNOTEC inverters..

The famous Swiss manufacturer of inverters for self-consumption and off-grid applications has confirmed the full compatibility between their inverters in the following range :

The PowerRack® range ensures compatibility with direct communication via the Xcom-CAN system for full battery control by the inverter.

The PowerBrick® range is compatible without the need for communication with the inverter. PowerBrick are then installed in the same way as AGM lead-acid batteries or other batteries. This installation method is faster and does not require additional cables or systems to operate.

We are delighted to work with Studer Innotec, a company that has been producing high quality energy converters for many years. Unlike other manufacturers, Studer Innotec controls the entire design of its products, which is a guarantee of reliability and an assurance of product durability.

Real time monitoring and telemetry service launched for PowerRack® battery system

Monitoring & Telemetry Interface for PowerRack
Monitoring & Telemetry Interface for PowerRack®

The Monitoring and Telemetry service is now available for our PowerRack® battery system.

This service allows all battery operating parameters to be monitored in real time.

All information is collected by WIFI, 3G/4G, or TCP-IP ethernet networks.

The service is based on a secure API-REST interface based in a secure cloud.

The main features of the service are as follows:

Remote configuration

  • Parameter setting of all battery functions and operating thresholds (temperature range, voltage range, current range, power range, warning thresholds, maximum discharge depth, etc.)
  • More than 70 accessible parameters
  • Remote firmware update

Remote monitoring

  • Viewing all battery operating data
  • Early phase incident detection
  • Consultation of parameters in the form of graphs and tables
  • Fleet management and preventive maintenance

Data history

  • The data is compressed into 5 levels according to their age
  • The average, minimum and maximum values of each parameter are kept indefinitely
  • Data consultation by a “Time-Shift” function

Consultation 24-7 via WEB Interface

  • The data is accessible on any Internet browser (PC or smartphone) with secure access to the platform
  • The data is accessible from a database cluster and saved on a daily basis
  • Management of user profiles and access rights for data consultation.
  • all stored data is encrypted with strong algorithm for privacy

SMS or Email alert management

  • An SMS or email alert can be configured to be triggered according to the parameters defined by the user.
  • Alerts can automatically open an assistance or maintenance ticket on the ticketing tools available at the customer’s premises

The service requires a subscription that supports the provision of the “Gateway” module for the PowerRack, the communication package, the rental of a dedicated or shared server.

The system is now operational for the PowerRack® range.

It will be available soon for the PowerModule® product range.

World premiere: “Ducasse sur Seine”, the first 100% Electric Michelin Starred restaurant boat, equipped with the PowerRack battery system

Ducasse sur Seine electric boat - PowerRack
Ducasse sur Seine – PowerRack

PowerTech Systems is pleased to announce that it is equipping the “Ducasse sur Seine”, 100% electric boat with its  PowerRack®  modular lithium battery system.

This 100% electric boat (propulsion, on-board equipment, kitchens, etc.) is powered entirely by our Lithium Iron Phosphate batteries, representing a stored energy of 720 kWh divided into two totally independent PowerRack banks.

The PowerRack battery system, certified by Bureau Veritas in early 2018, consists of 24 cabinets of 30kWh in 700V DC, connected in parallel. These batteries represent a weight of about 9 tons on board. This cabinet system limits floor space and allows energy to be stacked over the entire height of the hull, making the installation compact and integrated into the boat.

The “Ducasse sur Seine” has been in production since September 10, 2018. It delights the taste buds of its passengers twice a day (lunch and dinner), every day of the week. The trip to the heart of Paris is done without vibrations, silently, and without any pollution.

The official inauguration of the new vessel took place on 25 September 2018 in the presence of Mrs Anne Hidalgo, Mayor of Paris, and other personalities.

PowerRack® Lithium Ion batteries system is now approved by Bureau Veritas Marine & Offshore

PowerRack_Batteries_Lithium Ion_boats_marine_Certification_Type-of-Approval_PowerTechSystems


Poissy – July, 5th, 2018


The French manufacturer PowerTech Systems obtains the Type Approval marine certification. This for its scalable Energy Storage System product line: PowerRack®.

Press release: July 5th, 2018


The Lithium-Ion storage system is designed for electric traction in marine applications.

PowerRack® product line has been approved by the Bureau Veritas Marine and Offshore. This actor in maritime field is the world leader player in testing, inspection, certification services.

The «Type Approval» certification opens up possibilities. Indeed, the PowerRack® product line can now be used in a huge variety of hybrid and 100% electric propulsion systems for marine applications.

As a use case, PowerRack®system will be set up in 2018 on-board a 100% electric restaurant boat (Michelin-starred restaurant). It is based at the foot of Eiffel Tower. This boat will operate on the Seine river. It will use stored energy in its batteries to power the electric motors and supplies energy on board.

The modular and scalable PowerRack® system offers the possibility to set-up all kind of energy storage configuration. That is to say from 2.56 kWh to 1MWh with a voltage ranging from 51,2V to 921,6V. The PowerRack® product-line is equipped with an innovating system called “BMS-Matrix®”. It allows full control and total safety of operation.

100% compliant

In order to get this marine certification, PowerTech Systems carried out a complete series of tests (safety tests, vibration and environment tests, resistance to severe environments, etc). These tests ensure our customers that our products are rated with high level of safety and reliability for marine applications.

The «Type Approval» certification covers the whole of the lawful, technical and safety requirements. These ones are defined by Bureau Veritas Marine and Offshore for the type “Steel Ship” with passenger’s transportation.



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PowerTech Systems is proud for obtaining the «Type Approval» certification for our PowerRack® energy storage system.

This French-made product offers the possibility to ramp-up green energy adoption. It could be used for large transport vehicles. Such as the river or commercial vessels which is an important source of gas for greenhouse effects.

This storage solution for green energy is all the more relevant as it replaces the diesel groups on vessels. These latters often transit or operate in the middle of our city-centers. , Cyril Bergeaud, Founder and CEO.