High precision Coulomb Counter to monitor battery SoC

MyLithiumBattery extends its range of accessories with new charge indicators, including the CC75, CC150, CC500 coulomb counter

Poissy, May 29, 2018

High accuracy measurements of voltage (V), capacity (Ah), power (W) and battery energy

CC75, CC150, CC500 Coulomb Counters from MyLithiumBattery.com allow the user to obtain a state of charge in % (SoC – State Of Charge), and a precise depth of discharge (DoD) of the battery. They also calculate, in real time, the time remaining before the battery is completely empty.

The CC 75/150/500 are suitable for batteries with an operating voltage from 8V to 80V DC.
There are 3 versions :

  • CC75 measuring from 0 to 75A, compatible with M6 terminals
  • CC150 measuring from 0 to 150A, compatible with M8 terminals
  • CC500 measuring from 0 to 500A, compatible with M10 terminals

For applications using batteries, the situation is often critical if users are suddenly without energy (for example electric bicycles, security cameras, alarms, IoT, on-board sensors…).
In these cases, the accuracy of a Coulomb Counter for batteries State of Charge measurement is a “must have”.

Rely on CC75, CC150, CC500 coulombs counters

Simply measuring a voltage at the terminals of a battery is not enough to know its precise state of charge (SoC).

With our CC75/150/500, the advantage is real and allows precise counting of coulombs to determine their state of charge, as well as a measurement of the battery voltage and the instantaneous current used. This information is used to monitor the charge status of the system with battery.

Coulomb Counter allows accurate SoC nformation that can be communicated onto a bus network (CAN, TTL232, RS232).

Once the counter is initialized, it counts the coulombs used for a discharge, and those generated by a charger in order to take partial charges into account.

This principle has the advantage of being compatible with all battery technologies (lithium-iron-phosphate (LiFePO4), lithium-ion, Li-Polymer, lead-acid and nickel-metal hybrid batteries…).

To learn more about:
High precision CC75/150/500 coulombs counter

PowerTech Systems is now part of French Tech

PowerTech Systems joins French Tech community

Poissy, April 17, 2018

The French manufacturer PowerTech Systems, specialized in the design of Lithium-Ion energy storage systems, integrates the “French Tech” movement, the ecosystem of French start-ups in France and internationally.

French Tech” refers to all those who work in or for French start-ups in France or abroad. Convinced that it is necessary to encourage the emergence of successful start-ups in France to generate innovation, economic value and new jobs, the Government created this initiative in 2013.

The principle is simple: to rely on the initiatives of the French Tech members themselves, to enhance what already exists, to make the brand grow and evolve.

In turn, PowerTech Systems is committed to participating in this collective initiative. PowerTech Systems now carries high, a common standard for both French Tech members and the state that supports innovative companies.

The French Tech value is to be built collectively with all French actors (public actors, media, general public, large groups, research institutes, associations, etc…).

We are very proud to participate in this initiative, which highlights the innovation, technicality and expertise of our technicians and engineers on our territory. Joining this movement is also a way for us to highlight the quality of our scientific and technical training, as well as the enthusiasm of our employees to constantly innovate.

Cyril Bergeaud, Founder and CEO

Article : Plug&Play ESS solutions

Flexible, Modular and scalable high-performance storage solutions


PowerRack® system offers the most powerful energy storage solution in terms of modularity, lifespan, security and environmental footprint.

It is equipped with an embedded intelligence system developed by PowerTech Systems called BMSMatrix®.
It easily and securely manages the deployment, control and monitoring of large or complex energy storage systems. This technology offers incredible modularity and flexibility. It can thus be easily deployed with voltage ranges from 48VDC to more than 1000VDC, with a capacity ranging from a few KWh to several MWh.

Read Press Release
Read Press Release

PowerRack® : Plug&Play ESS for large spectrum of applications

A flexible and scalable storage solution

PowerRack® has a programmable communication system, compatible with the leading converters on the market (SMA, Studer, Schneider, etc.).
The interface can be adapted to communicate with specific applications. The standard embedded protocols are: CAN, CAN Open, RS232, RS485, ModBus.

Target applications :

  • Smart grids, Off-Grid and weak-Grid
  • Heavy duty traction (Electric vessels, railway, etc.)
  • Telecom

PowerTech Systems attends to FIRA (International Forum of Agricultural Robotics)

The 2nd edition of the International Forum of Agricultural Robotics organized by NAIO will take place on November 29th and 30th, 2017, in Toulouse.

November, 2017

This event meets about twenty exhibitors, specialists of the automation and robotics in agriculture. Among them, PowerTechSystems represented by Cyril Bergeaud, CEO, and Olivier Lechable, Sales Director.

2 days of exchanges and discoveries in the presence of experts. For example, it will be possible to meet:

  • Head of Robotics and Automation of the Agri-Epi Center at Harper Adams University as well as the Director of the National Center for Precision Farming, (UK),
  • President and Managing Director, Naïo Technologies, Aymeric Barthes et Gaëtan Severac (France)
  • Professor in agricultural robotics and head of the Robotics and Control Group at the Norwegian University of Life Sciences, Pal Joan From (Norway)
  • Member of the Executive Committee of CAPAGRO, Isabelle Monpert (France)
  • Venture Analyst and Associate in Anterra Capital, Dan HARBURG (US)
  • Director of Research of the IRSTEA National Institute of Scientific and Technological Research for the Environment and Agriculture, Roland Lenain (France)

In 2025, the agriculture could represent the 2nd robotics market. To understand and know it more, some essential themes will be deal with :

  • « Why robots come to the farm? », animated by Isabel Báez Betancort, journalist, Spanish Medias Agricoles (Espagne)
  • « The drudgery of farm work », animated by Maët Le Lan, Coordinator Experimental Station, Chamber of Agriculture (Brittany) (France)
  • « The new shift in agriculture », animated by Tobias Meyer, journalist, Traction Magazine (Germany)

To know more on :

FIRA exhibition
Lithium-ion applications
Lithium-ion PowerTechSystems Storage Systems

Lithium Ion battery for ESTACA On The Salt is ready !


June, 2017

This high performance Lithium ion iron Phosphate LiFe (LiFePO4) battery is designed by the PowerTech Systems teams. This lithium ion battery is able to deliver 250kW during the race in order to beat the speed record of the Bonneville Speed Week (USA) in August 2017.

Good luck guys for the final race !


More information : Estaca On the Salt