Lithium-ion batteries are widely used across e-bikes, power tools, mobility devices, and equipment systems.

While generally safe when handled correctly, most lithium battery-related incidents occur during charging, particularly where charging is unattended, poorly ventilated, or carried out using unsuitable equipment.

The following best practices are intended as general guidance to help reduce risk when charging lithium-ion batteries in both domestic and professional environments.

Understand the Risks of Charging

Charging places the highest electrical and thermal load on a lithium-ion battery. Faults that are not visible during normal use often present during charge cycles.

Risk factors increase where charging involves:

• Damaged or degraded batteries
  
• Incompatible or modified chargers
  
• Poor ventilation or heat build-up
  
• Extended or unattended charging periods
  

Potential hazards associated with unsafe charging include overheating, electrical faults, and thermal runaway events.

General Charging Best Practices

The following practices apply regardless of battery size or environment:

• Use only manufacturer-approved chargers and power supplies
  
• Charge batteries on stable, non-combustible surfaces
  
• Ensure adequate ventilation around charging equipment
  
• Keep charging areas clear of flammable materials
  
• Avoid charging batteries that are swollen, damaged, or have been dropped
  
• Do not exceed manufacturer-recommended temperature limits
  
• Disconnect chargers once charging is complete
  

Charging should always follow the battery and charger manufacturer’s instructions.

Avoid Common Charging Mistakes

Many charging incidents arise from routine practices that appear convenient but increase risk over time.

Common mistakes include:

• Charging batteries overnight without supervision
  
• Using extension leads or power strips for multiple chargers
  
• Charging in corridors, escape routes, or enclosed cupboards
  
• Storing batteries directly above or beside charging equipment
  
• Using chargers of unknown origin or incorrect voltage
  

Where batteries are shared between users, consistent charging procedures should be clearly defined and followed.

When Is a Charging Cabinet Recommended?

In some environments, general charging precautions may not be sufficient on their own.

Charging cabinets are typically recommended where:

• Multiple batteries are charged at the same time
  
• Charging is unattended or occurs outside normal working hours
  
• Batteries are high-capacity, industrial, or mixed types
  
• Charging takes place in shared, public, or supervised spaces
  
• Additional fire containment is required by internal policy or insurer
  

Charging cabinets are specifically designed to manage these risks through controlled power distribution, ventilation, and fire-resistant construction.

You can view BATTERY CHARGING CABINETS designed for active charging environments.

Home vs Workplace Charging Considerations

Home environments

Home users typically charge fewer batteries with lower total energy capacity. While risk is reduced, safe charging practices are still essential.

Common home charging applications include e-bikes, power tools, and mobility devices. Charging should take place away from living areas where possible and never near flammable materials.

Workplace and educational environments

Workplaces, schools, and shared facilities often involve:

• Larger numbers of batteries
  
• Mixed users with varying experience
  
• Formal risk assessments and safety policies
  
• Insurer or regulatory oversight
  

In these environments, controlled charging solutions are frequently required to meet safety and compliance expectations.

Final Safety Note

Charging practices should always align with manufacturer guidance, internal safety policies, and applicable fire safety recommendations.

Where uncertainty exists, a site-specific risk assessment should be carried out before establishing charging routines or selecting equipment.

If you are unsure which charging setup is appropriate for your environment, you can contact us for guidance based on your specific use case.