A new technical recommendation supports and enhances the reliability of lithium battery cabinet design in 2026.
Our cabinets, which comply with this recommendation, are designed to prevent fires and thermal runaway. They can withstand temperatures exceeding 73 °C and store up to 4,000 Wh for batteries weighing up to 25 kg. Classified according to their performance (P for power, T for temperature).
These cabinets meet strict technical requirements: automatic door closure in the event of prolonged opening, secure locking and one-handed operation. They require ventilation to remove flammable gases (minimum flow rate of 10 m³/h), specific labels, an integrated automatic extinguishing system and an emergency shut-off in the event of overheating or fire. Each unit is clearly marked with its safety classes and limits.
- Our solutions are tailored to your needs whilst adhering to a strict safety framework
- Scope of application: The system is designed for removable and portable lithium-ion batteries (e.g. electric bikes, portable power tools for workshops and landscaping, drones, handheld scanners, autonomous forklifts)
- Permissible capacities
- Battery mass: Less than or equal to 25 kg
- Unit charge capacity: Maximum of 4,000 Wh
- Maximum internal cabinet volume: 3,000 litres.
- Energy limits: The maximum total stored energy is defined by the manufacturer and must not exceed the capacity of the cabinet’s electrical installation.
- Exclusions: Non-fixed storage devices are not covered.
- Risks associated with toxic gases require the installation of an additional and mandatory air extraction system.
- Each cabinet is classified according to its actual performance during thermal runaway tests:
- Class P (Performance): Indicates the maximum energy (in Wh) of the most powerful battery that the cabinet can safely contain (e.g. P3500)
- Class T (Surface Temperature): Measures the temperature rise (K) on the external surface.
- T1: Temperature rise from 0 to 150 K.
- T2: Rise of 150 to 250 K.
- T3: Rise greater than 250 K.
- Examples
- Class P3500T1: A P3500 T1 cabinet withstands the thermal runaway of a 3500 Wh battery whilst maintaining a very low external surface temperature (< 150 K rise)
- To guarantee this level of performance, our cabinets comply with rigorous construction criteria:
- Door management:
- Automatic closure or alarm if the door remains open for more than 1 minute
- Secure locking (minimum one point) and operable with one hand
- Ventilation and Gases: Mandatory installation of an air extraction system providing a flow rate of at least 10 m³/h to remove flammable and toxic gases
- Shelves: These are designed not to cause the doors to close and to ensure the cabinet’s stability, even when storage shelves are removed
- High-security equipment:
- Integrated automatic fire suppression system with smoke and/or heat detection
- Automatic emergency shutdown of the load in the event of a critical incident (> 70°C or smoke)
- Clear labelling: Each unit bears permanent markings indicating its P and T classes, energy limits, and safety warnings.
Ecosafe
