UL Certified Power Bank

On October 22, 2024, the United States (ANSI) and Canada (SCC) released the safety standard for mobile power banks, ANSI/CAN/ul 2056:2024. Compared to the 2020 edition, "Outline of Investigation for Safety of Lithium-ion Power Banks," the new standard, ANSI/CAN/UL 2056 "Standard for Safety Power Banks," has changes in scope, testing requirements, and methods.

Scope of the Standard

Changes in applicability: The standard now applies to mobile power banks of all battery types, instead of just those with lithium-ion batteries. Voltage range has been expanded: the maximum rated input/output voltage has increased from 20Vdc to 60Vdc, and the rated watt-hour value of the power bank must not exceed 100Wh.

New: The standard applies to products with integrated photovoltaic battery cells as power sources, but products within the scope of portable power supply standard ul 2743 are excluded.

Standard Testing Requirements

New testing items:

★ Electrical Testing: 55℃ output port short circuit test, abnormal charging test, forced discharge test, BMS verification, power input test, and photovoltaic battery cell flammability test.

★ Enclosure testing: Steady-state uniform force test, bending force test, and mold stress relief test.

★ Miscellaneous tests: Label performance test.

Revised testing items:

Short circuit test:

1. Added a 55℃ test condition; removed the requirement for a 24-hour short circuit test.

2. For mobile power banks with lithium-ion battery cells, additional conditions are added: the initial discharge current of the built-in battery must be 1.2 times the maximum continuous discharge current of the built-in battery. There is no need to apply a single fault condition to the BMS of the built-in battery. Discharge will continue until the battery cell or battery explodes, vents, or the BMS operates, and the internal cell shell temperature reaches steady-state conditions or returns to ambient temperature.

Overcharge test:

For mobile power banks with lithium-ion battery cells, the charging voltage limit has been revised from 1.4 times the maximum voltage of a single cell to 1.1 times.

China JJR Laboratory specializes in the testing and certification of consumer electronic products, always staying informed of regulatory changes in various countries. We are dedicated to providing one-stop testing and certification services for our customers, ensuring that your products enter the target market quickly. If you would like to know more about the requirements for the Canadian ANSI/CAN/UL 2056 certification or if you need to obtain ANSI/CAN/UL 2056 certification for your product, please feel free to contact us. Our engineers will assist you as soon as possible!