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Techno-Physik Raclan Box II – Charging box with integrated cooling system for lithium-ion batteries

Technical data

Cabinet type: Charging box
Charging function: Yes
Fire suppression: With
Internal dimensions (mm): 540 x 340 x 200
Material: Composite material with mineral core
Max. energy density (kWh): 1.75
Number of doors: 1-leaf hinged
Outer dimensions (mm): 580 x 380 x 380
Place of deployment: Indoor area
Power supply: External: 100-230V / 50-60Hz / Internal: 4 x 3.6V lithium iron phosphate battery pack (rechargeable)
Refractory: Yes
Type: Charging box
Weight (kg): about 25

Product information „Techno-Physik Raclan Box II – Charging box with integrated cooling system “

Battery-powered tools have become an indispensable part of our modern world. These tools are playing an increasingly important role, particularly in commercial settings. This battery charging box offers you a high-quality entry-level solution for safely storing and charging your tools and batteries.

Advantages of the RACLAN Box II

  • Extremely fast extinguishing
  • Very low weight
  • Extremely easy to use
  • Explosion-proof
  • Integrated pressure-free extinguishing and cooling system
  • Suitable for use in enclosed spaces
  • Environmentally friendly, biodegradable extinguishing agent
  • Free from hazardous substances, not harmful to health
  • Real-fire and explosion testing carried out by DMT (TÜV NORD) --> Please feel free to contact us for further information on the test procedure
  • Emergency power supply for the monitoring electronics

Dimensions and function of the Raclan-Box II

This battery charging box has external dimensions of 580 x 380 x 380 mm (L x W x H). It weighs between 22 and 25 kg (including fire-extinguishing agent, depending on the model).  The interior dimensions of the charging box are 540 x 340 x 200 mm.

The lithium batteries are placed inside the box together with the chargers and connected. The front flap is then securely closed. The power supply can then be switched on, and a monitoring system controls the charging process and the interior of the box.

If the system detects a rise in temperature or smoke, it immediately triggers a visual and audible alarm. In the event of an alarm, the non-pressurised fire-suppression system sprays an environmentally friendly extinguishing and cooling agent over the batteries (the extinguishing cartridge activates at 90°C or above), thereby putting out the fire. Filters direct the resulting mixture of smoke and gas into the exhaust gas management system, ensuring that no toxic substances can escape to the outside. The waste heat is vented via the side exhaust vents. 2 sockets, each rated at 230 V are available

In the ceiling of the box, you will find two 230 V sockets for connecting your chargers.

Contents of delivery

  • 1 x RACLAN ® Box II
  • 1 x power cable
  • 1 x user manual
  • 4 x adjustable feet
  • 1 x Allen key
  • 2 x keys for the key switch
  • 2 x keys for locking the front flap

Techno-Physik Raclan Box II - Hydrogen explosion simulation

A hydrogen explosion in a lithium-ion battery can cause pressure peaks of up to 7.2 bar inside a safety container. This accelerates individual battery cells to speeds of up to 300 m/s. By way of comparison: a 9mm bullet reaches 360 m/s. This means that battery cells become red-hot (+600°C) projectiles. This is the maximum load that a RACLAN Box II must withstand. Specially developed frame geometries and ballistic composite materials are used for the boxes’ casings.

For risk and damage analyses of the structures of our RACLAN Boxes, the effects of impact and shock wave loads are determined in advance using numerical simulations. Here is an extract from one such simulation. Calculating these simulations is highly complex and takes several days.

Only once these simulations confirm that the RACLAN boxes successfully withstand the hydrogen explosion and that fire protection and leak-tightness are maintained 100 per cent does the next phase begin, namely the explosion and fire tests in a fire laboratory.

Further information

Safety warnings

  • Use exclusively for the storage and charging of lithium-ion batteries.
  • Full protection is only provided when the unit is completely sealed.
  • Do not store any highly flammable materials in the immediate vicinity.
  • Only use the box up to a maximum total battery capacity of 1754 Wh, or 877 Wh per lithium-ion battery
  • In poorly ventilated premises, a suitable ventilation duct leading to the outside must be connected
  • Charging is only possible when the unit is closed

Maintenance and care

For domestic use, the RACLAN ® Box II is largely maintenance-free. The box can be cleaned inside and out with warm water. For further instructions, please refer to the user manual.

The perfect storage solution with integrated charging facility for rechargeable batteries

Rechargeable battery-powered devices have become an indispensable part of everyday professional and business life. From electric tools and power tools with rechargeable batteries – which every tradesperson carries with them – to hand-held scanners used in order picking and logistics, right through to sat-navs, smartphones and so on, which are now also part of the standard equipment for many professions – Li-ion batteries and rechargeable batteries are becoming an ever-greater part of everyday business operations. In addition to organised storage when not in use, charging has become increasingly important, as devices can only operate optimally with a fully charged battery; consequently, combined storage and charging solutions are indispensable for businesses and public sector clients. Rechargeable battery charging boxes combine precisely these two functions: they enable the storage and simultaneous charging of the batteries. The box is powered externally at 100–230 V / 50–60 Hz and features an internal rechargeable 12 V LiFePO₄ battery, enabling flexible and independent use even without a direct mains power supply.

VDS recommendation for the storage of Li-ion batteries

There are as yet no legal regulations governing the storage of lithium batteries / lithium-ion batteries. Only VdS Schadenverhütung GmbH provides general safety rules for damage prevention in its publication VdS 3103: 2019-06 (03). It is advisable to clarify your requirements with your property insurer in advance.

The manufacturer Techno-Physik – a German engineering and manufacturing company

TECHNO-PHYSIK Engineering GmbH, based in Essen, is an internationally active company specialising in innovative solutions in the field of fire protection and industrial thermal insulation. Since its foundation in 1989, the company has been developing and manufacturing environmentally friendly, recyclable insulation materials and fire protection products, particularly those based on the natural raw material vermiculite.

With production sites in Germany, Slovenia and Austria, as well as an efficient production network, TECHNO-PHYSIK Engineering GmbH guarantees high quality standards and innovative solutions for its customers worldwide.


If you are looking for a certified battery safety cabinet, you will find them in our Safety Cabinets category. Please feel free to contact us if you are interested, to receive a personalised quote. By email (info@lion-care.com), via the contact form or by telephone (07151 - 2564811).

Cabinet type: Charging box
Charging function: Yes
Fire suppression: With
Internal dimensions (mm): 540 x 340 x 200
Material: Composite material with mineral core
Max. energy density (kWh): 1.75
Number of doors: 1-leaf hinged
Outer dimensions (mm): 580 x 380 x 380
Place of deployment: Indoor area
Power supply: External: 100-230V / 50-60Hz / Internal: 4 x 3.6V lithium iron phosphate battery pack (rechargeable)
Refractory: Yes
Type: Charging box
Weight (kg): about 25

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Datenblatt Raclan Box II DE
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User manual / Bedienungsanleitung Raclan Box II
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