On 19 December 2025, the MCA published Amendment 1 to MGN 681 (M) to update the requirements and best-practice guidance for the safe storage, handling, and charging of lithium-ion (Li-ion) batteries.
It emphasizes the use of custom storage options for batteries and chargers that incorporate specific safety features. Key requirements now include:
- Charging to take place within a certified container
- Charging capability with the container remaining closed
- Temperature-rise detection with automated alert systems
- Application of an extinguishing medium without opening the cabinet
- Off-gas venting to prevent the build-up of explosive gases
- Fire insulation and explosion-resistant construction
- Automatic shutdown of charging in the event of a fault or overheating
- Defined and validated maximum capacity limits (kWh)
- Insulation to prevent fire spread
Additionally, all battery storage and charging containers/boxes must be approved and certificated by a UK Nominated Body by 1 January 2027.
Here you can find more information on the MGN 681 (M) Amendment 1.
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