ISO 18300:2016

Overview

ISO 18300:2016 - Electrically propelled vehicles - Test specifications for lithium-ion battery systems combined with lead acid battery or capacitor - defines test specifications, configurations and requirements for combined energy storage systems used in automotive voltage class A applications. The standard covers lithium‑ion battery systems integrated in a common housing with either a lead‑acid assistance battery (LIPB) or an electric double layer capacitor (LICA / EDLC) and specifies test procedures to evaluate their behavior, performance and compatibility in vehicle environments.

Key Topics and Requirements

• Scope and configuration: Applies only to combinations of lithium‑ion main batteries with lead‑acid batteries or EDLCs that are integrated into a single housing. Describes schematic connection types (main battery + assistance battery/capacitor).
• Terms & definitions: Defines DUT (device under test), BCU (battery control unit), capacity, micro‑cycle, room temperature and other key terminology.
• Mandatory documentation & interfaces: DUT must be supplied with operation documentation and interface parts (connectors, plugs, cooling) to connect with test equipment.
• BCU and communications: DUT shall provide test modes in the BCU and support communication with test benches via common vehicle communication buses.
• Test procedures (by system type):
  • LIPB (lithium‑ion + lead acid): pre‑conditioning, rated capacity, micro‑cycle tests (with and without regenerative charging), cycle life tests and related requirements.
  • LICA (lithium‑ion + EDLC): pre‑conditioning, micro‑cycle with regenerative test, cold cranking power tests and pass/fail requirements.
• Performance focus: Power buffering, regenerative braking behavior, cold cranking capability, cycle life and micro‑cycle resilience (rapid charge/discharge within 60 s).
• Normative/terminology references: Uses terms from ISO/TR 8713 and points to ISO/IEC resources for standardization terminology.

Applications and Who Uses It

ISO 18300:2016 is intended for organizations involved in the design, testing and integration of hybrid automotive energy storages, including:

• Automotive OEMs specifying dual‑battery or dual‑voltage (12 V / 48 V) microhybrid systems
• Battery and EDLC manufacturers developing integrated packs (LIPB / LICA)
• Test laboratories and certification bodies conducting standardized performance and safety tests
• Systems engineers, vehicle integration teams and R&D groups validating regenerative braking, start‑stop and power‑assist strategies

Practical uses include validating combinations for microhybrid vehicles, ensuring BCU testability, verifying cold cranking support and quantifying cycle life under micro‑cycling profiles.

Related Standards

• ISO/TR 8713 for terminology referenced in ISO 18300
• ISO Online Browsing Platform and IEC Electropedia are recommended for related terminology and electrotechnical references.

Keywords: ISO 18300:2016, lithium‑ion battery systems, LIPB, LICA, electric double layer capacitor, EDLC, test specifications, automotive battery testing, voltage class A, battery control unit, micro‑cycle, cycle life.