WE DELIVER ENERGY SYSTEMS

Our solutions are designed to make energy supply and energy management more efficient, secure, and effective – even under challenging conditions. Thus, we support the management of current threat situations and create real value both in active field operations and at the interface with civilian deployments, such as protecting critical infrastructure and in crisis response.

BATTERY TROLLEY SYSTEMS

EcoVolta – 2.3KW
POWERBANK
Universal, compact portable 230V solution for silent, emission-free energy on the go.

EcoVolta – 8.9KW
POWER TROLLEY
Mobile 400 Volt solution for professional applications with high power requirements.

EcoVolta – 15.0KW
POWERSTATION
Scalable professional power supply for high inrush currents and long runtimes or multiple devices.

EcoVolta – 15.0KW
EVOTRACTION
Powerful battery blocks or traction batteries for electric vehicles and machinery

BATTERY CASE SYSTEMS

FlexiBatt – 2.5KW
BATTERY-BLOCK
With 2.5 kWh and a lightweight, compact design, FlexiBatt provides energy for extended field operations.

FlexiBatt – 2.5KW
BATTERY CASE
A modular 48V and 2.5 kWh ruggedized battery system for professional, off-grid use independent of the power grid.

FlexiBatt – 50KW
BATTERY SYSTEM
A UPS and energy storage system with high capacity. The system combines 5 kWh modules. Scalable up to 50 kWh.

GENERATORS - FUEL CELL SYSTEMS

PowerUP
GENERATORS
Mobile hydrogen fuel cell generators for quiet, emission-free power in flexible applications.

PowerUP
POWER SUPPLIES
Integrable fuel cell power supplies for compact, modular hydrogen-based energy systems.

PowerUP
ELECTROLYZER
Decentralized hydrogen production for resilient, independent energy supply on site.

PowerUP
USV SYSTEME
Hydrogen-based UPS power systems for reliable backup power in critical applications.

PowerUP
CONTAINER SYSTEME
Containerized hydrogen power systems, solutions for scalable, resilient energy supply on site.

LET'S TALK AND STAY IN TOUCH

YOUR CONTACT PERSONS

OUR BUSINESS AREAS

Vogt-CTE
Rescue
Business field for products related to rescue and operations

Vogt-CTE
Defense
Business field for products related to defense and security markets

Vogt-CTE
Energy
Business sector for products related to mobile energy supply markets

Vogt-CTE Fire Retardants
Business field for products related to fire protection and firefighting

LANGUAGE SETTINGS

HOW BATTERY MANAGEMENT SYSTEMS WORK | BMS EXPLAINED

A battery management system (BMS) is the “brain” of a portable power station. It ensures that the battery operates safely, efficiently, and reliably—whether you are using your device at home as an emergency power source or powering multiple devices on the go.

KEY FEATURES

Real-time Monitoring and Protection
The Battery Management System (BMS) constantly monitors voltage, current, and temperature for each cell in the battery pack. It utilizes this data to take immediate action if any measurements fall into a dangerous range – such as during overcharging, deep discharging, overcurrent, or overheating. This action prevents potential damage from electrical surges or unsafe conditions. It regulates not only the standard charging and discharging processes but can also completely cut off the current flow in emergencies, thereby safeguarding both the battery and connected devices. This ensures safety while also prolonging the battery’s lifespan.

Intelligent Charging and Discharging Control
A BMS guarantees that during charging, cells do not receive excessive voltage or current, and during discharging, no harmful current spikes affect the cells. This minimizes strain on the cells and lowers the risk of malfunctions.

State of Charge and Health Calculation
Another crucial function is the calculation of the state of charge (SOC) and the state of health (SOH) of the battery. SOC indicates the amount of charge remaining, while SOH evaluates the remaining lifespan of the battery. This information helps to prevent deep discharges and overcharges and timely notify users about maintenance or battery replacement needs. Note: Not every charger incorporates BMS functionality – protection, monitoring, and cell management are solely the domain of the battery management system, not the charger.

Protection Against Voltage Spikes
Portable power stations may experience voltage spikes or fluctuations – for instance, when a significant load is suddenly connected. The BMS promptly detects such instances and regulates or shuts down to avert damage. This ensures stable and safe power output.

Temperature and Heat Monitoring
Another core function of a BMS is temperature monitoring. Overheating not only decreases performance but can lead to thermal issues in severe cases. The BMS responds to critical temperature thresholds by adjusting or pausing the charging or discharging power.

Cell Balancing
Imbalances caused by unevenly charged cells can impact performance and safety. The BMS actively manages cell balancing, equalizing the charges of individual cells to ensure no cell is overstrained.

Communication and Diagnostics
Modern BMS systems not only keep users informed about status and safety but also provide diagnostic and alarm functionalities. Through displays or app connections, status updates and alerts can be communicated, significantly improving usability and maintenance.

A Battery Management System is much more than merely a monitoring circuit – it is a vital safety system that guarantees the health, efficiency, and longevity of a lithium battery. Without a BMS, portable power stations would be much more vulnerable to malfunctions, shortened lifespan, or even dangerous situations.

WHAT IS DEEP DISCHARGE, WHAT CAUSES IT—AND WHAT CAN YOU DO ABOUT IT?

A deep discharge occurs when a battery or individual cells are discharged below their allowable minimum voltage. This is particularly critical for lithium-ion batteries, as this cell chemistry operates stably only within a narrow voltage range. If this range is breached, it can lead to chemical changes within the cell that result in permanent capacity loss, increased internal resistance, and in the worst case, safety-related damages. Even a single deep discharge can significantly shorten the lifespan of a battery.

A deep discharge usually does not happen suddenly but gradually. Common causes include devices that remain powered on for extended periods, connected consumers that continue to drain the battery, or a missing or inadequate battery management system. Additionally, long storage at very low charge levels can contribute to a deep discharge, as many systems have a low self-consumption. Particularly problematic is that a battery may appear “empty” externally, while internally it is already below the safe voltage threshold.

Prevention is the most important protection against deep discharge. Batteries should not be discharged to zero percent but should be recharged in time. For longer storage periods, a charge level of about forty to sixty percent is recommended. Consumers should be completely disconnected when not in use, and systems should always have a functioning battery management system that automatically disconnects the battery before critical voltages are reached. Regular monitoring of the charge level also helps to prevent damage.

If a deep discharge has already occurred, caution is advised. Deep-discharged lithium-ion batteries should not be charged immediately with high power. Only suitable chargers should be used, and the first charging process should be monitored, especially concerning temperature. If the battery cannot be recharged, do not experiment, as this can be dangerous. In many cases, a deeply discharged battery can no longer be safely or economically recovered and must be replaced professionally.

In summary, a deep discharge usually results from neglect, lack of shutdown, or prolonged periods of low charge state. However, it can often be reliably avoided through conscious charging behavior, regular monitoring, and the use of a good battery management system.

WHAT CAN YOU DO IN ADVANCE TO PREVENT DEEP DISCHARGE?

Prevention is the most important step:

Do not use batteries down to zero percent
Charge devices in time, before they are completely drained
Store batteries at a state of charge between forty and sixty percent
Completely disconnect devices when not in use
Only use systems with a functional BMS
Regularly check the state of charge
Avoid long inactivity periods

A good BMS automatically shuts the system down, before deep discharge occurs.

WHAT CAN YOU DO AFTERWARD TO PREVENT DEEP DISCHARGE?

If deep discharge has already occurred:

Do not charge the battery immediately at high power
Only use appropriate chargers
Monitor the battery during the first charging process (temperature!)
If the system stops charging: Do not experiment
In case of deep-discharged batteries, professionally check, dispose of, or replace

Important: A deeply discharged lithium-ion battery can often no longer be safely restored. Attempts using unsuitable chargers can be dangerous.

WE DELIVER INNOVATIVE ENERGY SYSTEMS
At Vogt-CTE, we provide our European trading partners access to unique innovations in the field of energy systems. Our solutions make energy supply and energy management easier, faster, safer, and more energy-efficient – all while consuming fewer resources. The products we represent are highly specialized, field-tested, and create real value: they strengthen resilient, decentralized structures and ensure operation even under demanding conditions. We do not just bring products to market; we deliver progress. Together with our partners, we ensure that these innovations reach where they are needed most: at operators of critical infrastructure, response organizations, and field users.