Lithium batteries for the mini transat “La Boulangère”

Mini-Transat “La Boulangère” is a long course of 4050 nautical miles alone, on the smallest offshore racing boats, only 6.50m long, will be done in two stages. The first, departing from La Rochelle on September 22nd 2019, will go to Las Palmas de Gran Canaria located in the Canary Islands. The second of 2700 miles will last around two weeks for the fastest until the final finish in Le Marin en Martinique from mid-November.

For this 2019 vintage, we are accompanying skipper Bastian Oger in his race. Bastian reqyestedus to equip him with PowerBrick batteries because he wanted to save several tens of kilos on board. For the race, every gram counts and a few tens of kilos can make a big advantage.
So we equipped the boat with two PowerBrick 12v-100Ah (one main and one backup) to power all onboard instruments during the race. The service batteries will be recharged with solar panels.
The autonomy tests are very conclusive with twice capacity for roughly half weight. And Bastian is very happy and eager to start, so we are !

Here are some pictures of Bastian aboard his boat. We wish him good luck for the race.

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.

PowerTech Systems partner of EclairSea, specialist in electrical conversion of boats

Partnership with EclairSea

Poissy, July 2nd, 2018

EclairSea jumps into electric

EclairSea promotes econavigation by proposing the electrical conversion of boats. With a first successful experience on vessel “les 2 brigands” for the association “Marché sur l’eau”.
The comfort and technical advantages of an electric motor are far from negligible: silent and no vibrationnavigation, with almost no maintenance, space saving and better weight distribution on the boats.

PowerTech Systems contributes to this success by integrating several PowerBrick+ 250Ah 12V batteries into the system. They are more ecological, more compact, and totally secure. The presence of an integrated BMS ensures optimum safety and prevents any risk of explosion and self-ignition thanks to their Lithium Iron Phosphate technology, LiFePO4.

On an all-electric boat, energy is precious.

PowerBrick+ Lithium Iron Phosphate Batteries for considerable benefits

  • Small weight

    Lithium iron phosphate batteries provide a better power-to-weight ratio than lead batteries. They are on average 2 to 3 times lighter than traditional lead-acid batteries.

  • Small footprint

    Thanks to the compactness of Lithium Iron Phosphate technology, it can be accommodated in a considerable number of locations. In addition, it can be positioned in any direction. But above all, it increases the storage capacity (Ah) for the same volume.

  • Very high lifespan

    Lithium iron phosphate 12V batteries have a large number of charging cycles (up to 5000). This allows them to last more than 10 years.

  • High safety

    Equipped with a management system called Battery Management System (BMS), the cells of the lithium ion battery are automatically balanced during charging. The BMS stops the battery operation in case of:

    o Overcurrent
    o Over-voltage (during loading)
    o Undervoltage (during discharge)
    o Overheating

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

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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.