Battery knowledge · Vehicle and transport standards

Rechargeable energy storage system

The regulatory name, in UN R100 and GTR 20, for the whole traction battery as installed: cells, housing, management electronics, connectors and cooling. Tests apply to the REESS as a unit, which is why a cell approval alone is not a vehicle approval.

Abbreviation
REESS

Example

Vehicle and transport standards: an example situation

Shipping tests and vehicle battery approval tests address different uses; passing one does not automatically satisfy another.

Read Rechargeable energy storage system alongside Battery management system in this context. The electronics and software that keep a battery inside its safe window: measuring every cell voltage and many temperatures, estimating SOC and SOH, balancing cells, computing current limits, controlling the contactors and reporting over the vehicle network.

Use in Lemonergy

Check issuing organization, edition, scope and market.

This is a reference concept. No executable Lemonergy block has been verified for this term.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

  1. UN Manual of Tests and Criteria, Revision 8

    United Nations Economic Commission for Europe · 2023

    Topic background · Dangerous-goods classification tests; subsection 38.3 concerns battery transport testing.

  2. Manual of Tests and Criteria, Revision 8, Amendment 1

    United Nations Economic Commission for Europe · 2025

    Topic background · Amendments to Revision 8, including changes to battery testing in subsection 38.3.