Chapter 85 covers electric motors, electrical equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories thereof. This chapter is one of the most technology-intensive chapters in the HS classification, involving various types of equipment for the production, conversion, storage, and application of electrical energy. Storage batteries, as electrical energy storage devices, have a classification logic that is both related to and fundamentally different from electrical energy conversion equipment such as generator sets and transformers, and particular attention should be paid to their physical characteristics of energy storage and release. Heading 8507 specifically covers storage batteries, primary cells, and parts thereof. This heading includes various types of chemical power sources such as lead-acid storage batteries, lithium-ion storage batteries, nickel-metal hydride storage batteries, and fuel cells, but excludes mechanical energy storage devices (such as flywheel energy storage) and capacitors (heading 8532). Under 8507, further subdivision is made by battery type and use, among which 850780 serves as a residual subheading covering other storage batteries not specified in 850710 to 850760. Code 850780 is a six-digit subheading structure: the first 2 digits '85' represent Chapter 85 (electric motors, electrical equipment and parts thereof), defining it as electrical goods; digits 3-4 '07' represent heading 8507 (storage batteries, primary cells and parts thereof), specifying the scope of chemical power sources; digits 5-6 '80' represent subheading 850780, meaning 'other storage batteries', i.e., storage battery types not specifically named in subheadings such as 850710 (lead-acid storage batteries), 850730 (nickel-cadmium storage batteries), 850740 (nickel-iron storage batteries), 850750 (nickel-metal hydride storage batteries), and 850760 (lithium-ion storage batteries). This subheading is the residual provision under heading 8507. The core reason this commodity is classified under 850780 rather than adjacent codes is that its battery type is not specifically named in 850710 to 850760. For example, if it were a lithium-ion storage battery, it should be classified under 850760, and a lead-acid storage battery under 850710. 850780 applies only to non-named storage batteries, such as sodium-sulfur batteries, flow batteries, and other new-type chemical power sources. At the same time, primary cells (8506) and battery parts (850790) must be excluded to ensure the accuracy of the classification hierarchy.

Product Name: The Chinese and foreign language names of the declared commodity should accurately reflect the battery type, such as 'sodium-sulfur storage battery' or 'flow battery', and avoid broadly filling in 'storage battery'. Brand: Fill in the brand or manufacturer name of the battery; if there is no brand, indicate 'no brand', for customs intellectual property protection and market traceability. Model: Fill in the specification and model of the battery, such as 'VS-1000', which should be consistent with the product technical documents to facilitate customs verification of classification. Use: Explain the main application scenario of the battery, such as 'for energy storage power stations', 'for electric vehicles', or 'for uninterruptible power supplies'; use affects classification determination. Chemical System: Specify the chemical type of the battery, such as 'sodium-sulfur', 'flow', or 'zinc-bromine', which is the key element for classification under 850780. Capacity: Fill in the rated capacity of the battery, usually in ampere-hours (Ah) or kilowatt-hours (kWh), which affects the specification determination of the battery. Voltage: Fill in the rated voltage of the battery in volts (V), used to determine the electrical characteristics of the battery. Product Name: Sodium-sulfur storage battery; Brand: NGK; Model: NAS-250; Use: Grid energy storage; Chemical System: Sodium-sulfur; Capacity: 250kWh; Voltage: 360V; Origin: Japan. Declaration note: This battery is a sodium-sulfur battery, not named in 850710-850760, so it is classified under 850780. Mistakenly classifying lithium-ion batteries under 850780, when they should actually be classified under 850760. Failure to specify the chemical system, resulting in customs being unable to determine the subheading. Mistakenly declaring battery parts (such as electrodes) as complete units, when they should be classified under 850790.

The core basis for classification is the subheading division under heading 8507 in the Import and Export Tariff and the HS Explanatory Notes. First, determine whether it is a storage battery (rechargeable), excluding primary cells (8506). Second, determine based on the battery's chemical system whether it falls within the specific names in 850710 to 850760. If the chemical system is lead-acid, nickel-cadmium, nickel-iron, nickel-metal hydride, lithium-ion, etc., classify under the corresponding subheading respectively; if it is another non-named chemical system (such as sodium-sulfur, flow, zinc-air, etc.), classify under 850780. At the same time, note that the use of the battery does not affect subheading division and serves only as a declaration element. 850760 Lithium-ion storage batteries: Lithium-ion batteries are a specifically named subheading and are classified under 850760 regardless of use; while 850780 is a residual subheading and applies only to storage batteries of non-named chemical systems. 850610 Manganese dioxide primary cells: Primary cells are single-use batteries and are not rechargeable, classified under 8506; storage batteries are rechargeable and classified under 8507. The core difference lies in whether they are rechargeable. 850790 Storage battery parts: 850790 covers dedicated parts of storage batteries (such as plates and separators), while 850780 covers complete storage batteries. If unassembled parts are imported, they should be classified under 850790. 853229 Capacitors: Capacitors store electrical energy through electrostatic means, with fast charge and discharge but small capacity; storage batteries store energy through chemical reactions, with large capacity but slow charge and discharge. The physical principles are different. Is the battery rechargeable? Does the chemical system belong to lead-acid, nickel-cadmium, nickel-iron, nickel-metal hydride, or lithium-ion? Is it a complete battery rather than a part? Is it not named in 850710-850760? Are the declaration elements complete and accurate?

How can I check whether goods under 850780 are subject to export tax rebates? The export tax rebate rate must be checked according to the latest Export Tax Rebate Rate Database. You can log on to the official website of the General Administration of Customs of China or the State Taxation Administration, enter HS code 850780 and the commodity name, and the system will display the current rebate rate. Note that the rebate rate may be adjusted with policy changes, and it is recommended to use the time of declaration as the basis. Why are sodium-sulfur batteries classified under 850780 instead of 850760? 850760 covers only lithium-ion storage batteries. The chemical system of sodium-sulfur batteries is sodium and sulfur, which is not lithium-ion, so they cannot be classified under 850760. As a residual subheading for other storage batteries, 850780 covers all storage batteries of non-named chemical systems, so sodium-sulfur batteries are classified under 850780. Can imported used storage batteries be classified under 850780? Yes, but the import of used storage batteries must comply with the Law on the Prevention and Control of Environmental Pollution by Solid Wastes and customs regulatory requirements for used mechanical and electrical products. It is recommended to complete the filing for used mechanical and electrical products in advance and provide inspection reports proving their performance and safety. If they are solid wastes prohibited from import, they must not be imported. How should 'Chemical System' be filled in among the declaration elements for 850780? The chemical system should be filled in with the positive and negative active materials of the battery, such as 'sodium-sulfur', 'zinc-bromine', or 'flow'. Avoid filling in 'other' or 'unknown', otherwise customs may require supplementary explanation or laboratory testing. Accurate filling helps expedite customs clearance. How are storage battery parts and accessories classified? Dedicated parts (such as plates, separators, and battery shells) are classified under 850790; general-purpose parts (such as bolts and wires) are classified according to material. If parts are imported together with batteries but are unassembled, they must be classified separately. If assembled into a complete battery, they are classified as a complete unit under 850780. What regulatory documents are required for importing goods under 850780? Depending on the battery type and use, documents such as the Inbound Goods Customs Clearance Form (for legally inspected commodities), dangerous goods transport certificates (if dangerous goods), and certificates of origin may be required. For specifics, consult the Customs Regulatory Conditions Code Table and enter HS code 850780 to obtain the regulatory conditions. Does 850780 apply to storage batteries imported via cross-border e-commerce retail? Cross-border e-commerce retail imported goods must comply with the List of Cross-border E-commerce Retail Imported Goods. If storage batteries are on the list, 850780 may apply. However, attention should be paid to the list's restrictions on battery type and use, and preferential tax rates may be enjoyed within the individual annual transaction limit. How do you distinguish between 850780 and 850790? 850780 covers complete storage batteries with charge and discharge functions; 850790 covers dedicated parts of storage batteries, such as plates, separators, and shells, which do not have independent functions. If unassembled parts are imported, even if they can form a battery, they are classified under 850790.