Laptop battery fire

  • Safety Flash
  • Published on 25 October 2017
  • Generated on 24 July 2026
  • IMCA SF 27/17
  • 2 minute read

A laptop battery exploded and caught fire. 

What happened?

The incident happened in a workshop setting. The laptop was being used to control certain operations, which had been recently completed. The laptop itself was switched off at the time but was on charge at the mains.

The laptop was on a wooden topped work bench. A loud bang was heard from the laptop, after which it caught fire. Crew were nearby and immediately extinguished the fire by using the adjacent 3 kg CO2 extinguisher.

 Owing to the quick reaction in extinguishing the fire, the vessel’s General Alarm was not activated.

Having extinguished the laptop, it was safely removed from the power source and removed to a safe location on the steel deck outside where it could cool down.

The laptop was being used to control certain operations, which had been recently completed
The cause of the fire was the overheating and subsequent partial explosion of the laptop lithium-ion battery.

What went wrong? What were the causes?

The cause of the fire was the overheating and subsequent partial explosion of the laptop lithium-ion battery.

The last portable appliance testing (PAT) of this item had been conducted three months before.

What lessons were learnt?

  • There was a quick and professional response to the fire which swiftly brought it under control before it spread.

  • The laptop was in date for PAT.

What actions were taken?

  • Address the issue of potential faulty laptop batteries – full asset review to establish whether desktops and laptops need replacing.

  • Ensure all laptops are tested and inspected as required by PAT.

  • Consider whether or not laptops should be left unattended whilst plugged in.

Latest Safety Flashes:

MAIB: Catastrophic engine failure and subsequent fire

MAIB has published Accident Investigation Report 10/2026 into a catastrophic failure of a diesel generator engine on board the vessel Kommandor Susan.

Read more
BSEE: Compressed gas cylinder hazards

BSEE has published Safety Alert 516, relating to potential risks involving compressed gas cylinders.

Read more
MSF: dropped object inside vessel tank

MSF have published Safety Alert 26-05 relating to a tank cleaning machine coming lose and falling within a tank on a vessel.

Read more
Uncontrolled movement of cargo

During offshore cargo operations alongside a rig, a single pipe loaded on deck shifted due to vessel motion and swell conditions.

Read more
Positives – rubber seals on hatches, securing of shackle pins, fuel sample box

A Member reports a few positive findings.

Read more

IMCA Safety Flashes summarise key safety matters and incidents, allowing lessons to be more easily learnt for the benefit of the entire offshore industry.

The effectiveness of the IMCA Safety Flash system depends on the industry sharing information and so avoiding repeat incidents. Incidents are classified according to IOGP's Life Saving Rules.

All information is anonymised or sanitised, as appropriate, and warnings for graphic content included where possible.

IMCA makes every effort to ensure both the accuracy and reliability of the information shared, but is not be liable for any guidance and/or recommendation and/or statement herein contained.

The information contained in this document does not fulfil or replace any individual's or Member's legal, regulatory or other duties or obligations in respect of their operations. Individuals and Members remain solely responsible for the safe, lawful and proper conduct of their operations.

Share your safety incidents with IMCA online. Sign-up to receive Safety Flashes straight to your email.