IEC 62840-2 Ed. 2.0 b:2025

Current Revision
Electric vehicle battery swap system - Part 2: Safety requirements

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Electric vehicle battery swap system - Part 2: Safety requirements

IEC 62840-2:2025 provides the safety requirements for a battery swap system, for the purposes of swapping swappable battery system (SBS)/handheld-swappable battery system (HBS) of electric vehicles. The battery swap system is intended to be connected to the supply network. The power supply is up to 1 000 V AC or up to 1 500 V DC in accordance with IEC 60038. This document also applies to battery swap systems supplied from on-site storage systems (e.g. buffer batteries).

Aspects covered in this document:

  • safety requirements of the battery swap system and its systems;
  • security requirements for communication;
  • electromagnetic compatibility (EMC);
  • marking and instructions;
  • protection against electric shock and other hazards.

This document is applicable to battery swap systems for EV equipped with one or more SBS/HBS.

This document is not applicable to:

  • aspects related to maintenance and service of the battery swap station (BSS),
  • trolley buses, rail vehicles and vehicles designed primarily for use off-road, and
  • maintenance and service of EVs.

Requirements for bidirectional energy transfer are under consideration.

This second edition cancels and replaces the first edition published in 2016. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

  • expands the scope to encompass both swappable battery systems (SBS) and handheld swappable battery systems (HBS);
  • introduces stricter interoperability requirements through detailed system interface specifications and defined state transition protocols;
  • enhances data security by defining safety message transmission protocols and integrating telecom network requirements;
  • increases electrical safety protection levels for battery swap stations (BSS) with specified capacitor discharge time limits to mitigate electric shock risks;
  • introduces enhanced mechanical safety requirements for automated battery handling systems, with technical alignment to ISO 10218-1 and ISO 10218-2;
  • strengthens overload and short-circuit protection for BSS through standardized testing methods and overcurrent protection specifications;
  • defines upgraded electromagnetic compatibility (EMC) standards to ensure system resilience against external interference, supplemented with EMC-related functional safety measures.

This document is to be read in conjunction with IEC 62840-1:2025.

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