ANSI C18

Example

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Match scope to product and installation.

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IEC 60086

The IEC series for primary batteries. Part 1 sets the electrochemical system letters, designations and test conditions; part 2, split in 2026 into parts 2-1 and 2-2, the dimensions and performance of each standard size; part 3 watch batteries; part 4 the safety of lithium primaries; part 5 the safety of aqueous ones. Medical and equipment standards cite part 4.

IEC 62133

The safety standard for portable sealed cells and batteries, part 2 covering lithium systems. Passing it is a basic requirement for consumer products, and it is often the first safety certification a new cell obtains.

Primary cell

A cell designed to be discharged once and not recharged, such as an alkaline or lithium–manganese dioxide cell. Its reaction is not reversible in practice, unlike the secondary cells this glossary is mostly about.

UL

The US safety-science organisation, founded in 1894 as Underwriters Laboratories, whose numbered standards — UL 1642, UL 2580, UL 9540, UL 9540A and others — define much of North American battery safety. Since 2022 it has operated as UL Standards & Engagement, which writes the standards, the commercial UL Solutions, which tests and certifies to them, and UL Research Institutes.

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. IEC 62619:2022 — Safety requirements for secondary lithium cells and batteries, for use in industrial applications

   International Electrotechnical Commission · 2022

   Topic background · Industrial and stationary lithium-battery safety scope; excludes road vehicles where their dedicated standard applies.

2. Energy Storage System Testing and Certification

   UL Solutions

   Topic background · System safety scope of UL 9540 and relationships to battery and power-conversion standards.