GB/T 46732-2025 Technical specification for lithium-ion batteries for household and similar electrical appliances English, Anglais, Englisch, Inglés, えいご
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ICS 13.220.10
CCS H 57
National Standard of the People's Republic of China
GB/T 46732-2025
Technical specification for lithium-ion batteries for household and similar electrical appliances
家用和类似用途电器用锂离子电池技术规范
Issue date: 2025-10-31 Implementation date: 2026-05-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Requirements
5 Test Conditions
6 Test Methods
7 Marking, Instructions and Product Specification Sheet
8 Inspection Rules
Appendix A (Informative) Charging Safety for Batteries with Protection Circuits Integrated in Chargers or Household Appliances (Including Their Accessories)
Appendix B (Normative) Product Specification Sheet
References
1 Scope
This document specifies the technical requirements, markings, instructions, product specification sheets, and inspection rules for lithium-ion cells and batteries used in household and similar electrical appliances. It also describes the corresponding test conditions and methods.
This document applies to the design, production, quality inspection, and delivery of lithium-ion cells and batteries (hereinafter referred to as "cells" and "batteries") for household and similar electrical appliances (hereinafter referred to as "household appliances").
Note: The requirements and test methods for batteries mentioned in this document refer to batteries with independent protection circuits. For batteries whose protection circuit is integrated into the charger or household appliance (including its accessories), and for the verification of charging safety for the complete household appliance, refer to the test methods in Appendix A.
2 Normative References
The content of the following documents constitutes indispensable provisions of this document through normative reference in the text. For dated references, only the edition corresponding to that date applies. For undated references, the latest edition (including any amendments) applies.
GB/T 4208 Degrees of Protection Provided by Enclosure (IP Code)
GB/T 17626.2 Electromagnetic Compatibility - Testing and Measurement Techniques - Electrostatic Discharge Immunity Test
GB 38031-2025 Safety Requirements for Power Batteries for Electric Vehicles
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Lithium-Ion Cell
A rechargeable device that relies on the movement of lithium ions between the positive and negative electrodes to convert chemical energy into electrical energy and vice versa.
Note: The device includes electrodes, separator, electrolyte, container, terminals, etc.
[Source: GB 31241-2022, 3.1, modified]
3.2 Lithium-Ion Battery
An integrated unit consisting of one or more cells, protection circuits, etc., used directly as a source of electrical energy.
Note 1: The protection circuit may be independent or integrated into the charger or household appliance (including its accessories).
Note 2: Functions of the protection circuit may include current protection, voltage protection, temperature protection, etc.
Note 3: A battery with a complete enclosure possesses a certain degree of protection. A battery integrated into a charger or household appliance (including its accessories) may not have an independent enclosure or may use an encapsulation structure with performance lower than that of the appliance enclosure due to the protection provided by the appliance enclosure.
Note 4: A lithium-ion battery may also include components or materials such as encapsulation materials, connectors, and protective devices.
3.3 Rated Capacity (C)
The capacity of a cell or battery as declared by the manufacturer.
Note: Expressed in ampere-hours (Ah) or milliampere-hours (mAh).
[Source: GB 31241-2022, 3.8]
3.4 Rated Energy
The energy value of a cell or battery determined under specified conditions as declared by the manufacturer.
Note 1: Calculated by multiplying the nominal voltage by the rated capacity, rounded up.
Note 2: Expressed in watt-hours (Wh) or milliwatt-hours (mWh).
Note 3: For the rated energy of a battery, if the values calculated based on cell and battery parameters differ, the larger value shall be taken.
3.5 Nominal Voltage
The voltage value of a cell or battery specified by the manufacturer.
3.6 Reference Test Current (Iₜ)
A test current whose numerical value is the same as the rated capacity (C).
Note: Expressed in amperes (A) or milliamperes (mA).
[Source: GB 31241-2022, 3.10]
3.7 Limited Charging Voltage (Uₑₗ)
The rated maximum charging voltage of a cell or battery specified by the manufacturer.
[Source: GB 31241-2022, 3.13]
3.8 Upper Limited Charging Voltage (Uᵤₚ)
The highest safe charging voltage that a cell or battery can withstand, as specified by the manufacturer.
[Source: GB 31241-2022, 3.11]
3.9 Overvoltage for Charge Protection (Ucₚ)
The protection circuit activation voltage during high-voltage charging, as specified by the manufacturer.
[Source: GB 31241-2022, 3.12]
3.10 End of Discharge Voltage (Udₑ)
The voltage at the end of discharge for a cell or battery as recommended by the manufacturer.
[Source: GB 31241-2022, 3.14]
3.11 Discharge Cut-off Voltage (Udₒ)
The minimum load voltage for safe discharge of a cell or battery, as specified by the manufacturer.
[Source: GB 31241-2022, 3.16]
3.12 Low Voltage for Discharge Protection (Udp)
The protection circuit activation voltage during low-voltage discharge, as specified by the manufacturer.
[Source: GB 31241-2022, 3.15]
3.13 Recommendation Charging Current (Icᵣ)
The constant current charging current recommended by the manufacturer.
[Source: GB 31241-2022, 3.19]
3.14 Maximum Charging Current (Icₘ)
The maximum constant current charging current specified by the manufacturer.
[Source: GB 31241-2022, 3.17]
