Summer Safety Tips for Lithium-Ion Batteries
Summer has arrived in Ireland, bringing longer evenings, brighter days, and much-anticipated sunshine. But with the rise in temperatures comes an often-overlooked safety concern: lithium-ion batteries.
From mobile phones and electric vehicles to power tools and workplace equipment, lithium-ion batteries are everywhere. While generally very safe, these batteries can become hazardous if not handled correctly in warmer conditions. Many people don't realise that heat is one of the leading triggers for battery malfunctions and failures.
Why Lithium-Ion Batteries React to Heat
Lithium-ion batteries contain chemical energy, which makes them highly efficient but also sensitive to their environment. When exposed to high temperatures, several things can happen:
- The battery can overheat and enter a state known as thermal runaway. This is where heat builds uncontrollably, potentially causing fires or explosions.
- Gas can build up inside the battery, creating pressure that may lead to swelling or rupture.
- Chemical breakdown can occur, releasing hazardous gases.
- The overall lifespan of the battery is reduced, leading to earlier failure.
You don’t need extreme weather to trigger these risks. Even a mild Irish day can cause problems if a battery is left in direct sunlight, in a vehicle, or in poorly ventilated storage.
Simple Summer Safety Tips
- Store batteries in a cool place.
Wherever possible, keep batteries between 15°C and 25°C. Avoid leaving them in cars, sheds, or anywhere exposed to direct sunlight for extended periods. - Charge with care.
Charging creates extra heat. Try to avoid charging batteries during the hottest parts of the day. Always use the correct manufacturer-approved charger and never leave batteries charging unattended. - Inspect batteries regularly.
Check for signs of swelling, leaking, strange smells, or physical damage. If you notice any of these, stop using the battery immediately and arrange for its safe disposal. - Use proper storage equipment.
In work environments, fire-resistant storage cabinets provide vital protection. They also help ensure compliance with Irish legislation, including the Safety, Health and Welfare at Work Act 2005 and the General Application Regulations 2007. - Keep storage areas ventilated.
Good airflow helps maintain safe temperatures and humidity levels. In more sensitive environments, consider installing dehumidifiers. - Train staff properly.
Anyone handling batteries should understand the risks, particularly during warmer periods. Irish law requires employers to provide the right training and information to ensure staff safety. - Be prepared for emergencies.
Keep appropriate fire-fighting equipment nearby. This should include Class D fire extinguishers or specialist lithium-ion fire blankets, as water-based extinguishers are generally ineffective on battery fires.
Don’t Wait for an Incident
There have been serious incidents in Ireland and internationally where an overheated battery has caused fires, extensive damage and, in some cases, injury. The good news is that most of these incidents can be prevented with proper precautions.
At EHS International, we work with companies across Ireland to ensure lithium-ion battery safety is fully integrated into their operations. Whether you’re managing EV fleets, industrial equipment, data centres or office storage, our team can help you identify risks and put the right controls in place.
Contact us today to schedule a private consultation.
We also supply a full range of lithium-ion fire safety products to help keep your business protected.
A small step now could prevent a major incident later.