12/03/2025
Lithium Fire Guard’s PG100 is built and tested to the toughest battery fire containment benchmark in the world: the ANSI/UL 5800-2021 Standard for Battery Fire Containment Products, used jointly in the U.S. and Canada for inhabited aircraft compartments.
How rigorous is ANSI/UL 5800?
- It uses a controlled “worst-case” lithium-ion battery failure, driving 18650 cells to full thermal runaway at 100% state of charge to prove true containment, not just “overheating” resistance.
- Products are tested three separate times with new units each time; if any test fails key criteria, the entire program stops.
- The test lab instruments temperature, smoke, and combustion products every second for up to six hours, monitoring surface temperatures, smoke release, and debris in a highly controlled fire test environment.
What does a passing product have to do?
To meet performance levels under UL 5800, the containment system must:
- Prevent flame from breaching the product (even with cheesecloth and tissue wrapped around it to detect the smallest ignition).
- Keep shrapnel, sparks, and harmful debris fully contained, while keeping exterior touch surfaces below strict temperature limits for handles, vents, and contact surfaces.
For higher performance (Level 2), keep total visible smoke release under a tight maximum, on top of all the above requirements.
Why this matters for PG100
When an operator deploys a UL 5800–qualified containment like Lithium Fire Guard’s PG100, they are using a system designed specifically for inhabited aircraft cabins, tested to contain a full-blown lithium battery thermal runaway events and engineered so a single trained person can operate it with clear instructions and built‑in PPE requirements.
If your lithium battery safety solution has not been proven against ANSI/UL 5800, you are relying on marketing claims instead of a rigorous, independently developed aviation fire-containment standard—exactly why operators looking for real risk reduction choose solutions like Lithium Fire Guard’s PG100.
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