In explosion-prone areas, ATEX-certified devices must meet strict safety requirements. This also includes that only the batteries listed in the certificate may be used. But why is that?
⚠ Hazards from non-certified batteries
1️⃣ Different Voltage & Discharge Current
Not every battery delivers exactly the same voltage and current.
🔴 Problem:
- A battery with a higher discharge current than intended could overload the ATEX device and lead to overheating or sparking.
- A voltage that is too low can cause internal protection mechanisms to not function properly.
✅ Solution:
Only the tested batteries in the certificate ensure that the device remains within safe electrical limits.
2️⃣ Temperature Development & Overheating
Batteries generate heat during discharge. ATEX devices must ensure that their surface temperature does not exceed the specified ignition temperature of the surrounding gases or dusts.
🔴 Problem:
- Some batteries heat up more than others, especially under heavy load.
- An overheated battery could bring the device to a dangerous temperature and trigger an ignition.
✅ Solution:
The batteries listed in the ATEX certificate have been specifically tested to ensure they remain within the allowable temperature limits.
3️⃣ Chemical Composition & Gas Formation
Not all batteries have the same chemical composition. Some can release gases if used improperly or as they age.
🔴 Problem:
- An unsuitable battery could release flammable gases or liquids.
- In an explosive atmosphere, this could act as an ignition source.
✅ Solution:
The certified batteries are tested for tightness and chemical safety to eliminate any hazards.
4️⃣ Mechanical Safety & Tightness
ATEX-certified devices are often used in demanding environments. Batteries must withstand mechanical stresses.
🔴 Problem:
- Cheap or unsuitable batteries can be damaged by vibrations or impacts.
- A leaking battery can trigger chemical reactions or damage the device.
✅ Solution:
Only the tested batteries in the certificate guarantee sufficient mechanical strength and tightness.
5️⃣ Legal Requirements & Loss of ATEX Certification
ATEX certificates are issued by notified bodies. These tests always apply to the device in combination with the tested batteries..
🔴 Problem:
- If a non-certified battery is used, the ATEX approval of the device becomes void..
- In the event of an accident or an inspection, this may lead to liability issues or a prohibition on use.
✅ Solution:
The use of non-certified batteries is not allowed, as they were not part of the original ATEX testing.
📌 Conclusion: Only use the batteries specified in the ATEX certificate!
✅ Only these batteries have been tested for electrical, thermal, and mechanical safety.
✅ They guarantee that the device does not exceed the maximum surface temperature.
✅ They prevent chemical reactions or dangerous gas formation.
✅ They are tested for long-term operation in Ex zones.
✅ Only with these batteries does the ATEX certification remain valid.
🔴 Warning: The use of other batteries may invalidate the ATEX certification, pose a safety hazard, and lead to legal consequences!🚀