Quick Answer: In 2026, lithium-ion batteries imported into the United States from China may be subject to several separate duty layers. Covered Chinese lithium-ion non-EV batteries are subject to a 25% legacy Section 301 duty, and a new 12.5% Forced-Labor Section 301 duty generally applies to products of China entered on or after July 24, 2026, unless an exemption applies. The normal HTSUS duty and any other applicable Chapter 99 measures must also be checked. For an illustrative Chinese non-EV lithium-ion battery classified under a provision with a 3.4% normal duty, these three layers total 40.9% before other duties, fees, and product-specific adjustments. Importers must confirm the current HTS classification, exemption status, country of origin, and entry date with the USITC Harmonized Tariff Schedule, the USTR Section 301 search tool, and a licensed customs broker before shipment.
For manufacturers of medical devices, industrial equipment, robotics, security systems, and portable electronics, battery tariffs affect more than cell price. They can change landed cost, supplier selection, pack architecture, inventory planning, and the commercial viability of a product launch. A useful tariff review must therefore begin with the exact imported article rather than a general description such as “lithium battery.”
Part 1: What Changed for Lithium-Ion Batteries in 2026?
1.1 Section 301 Rate for Non-EV Lithium-Ion Batteries
Following the 2024 four-year review of the China Section 301 actions, the United States scheduled the additional tariff on lithium-ion non-electrical-vehicle batteries from China to increase from 7.5% to 25% in 2026. The change was published by the Office of the United States Trade Representative and applies through the relevant HTS and Chapter 99 provisions.
This category is especially relevant to custom lithium battery packs used in medical equipment, inspection instruments, industrial communication systems, robotics, security devices, and other non-EV applications.
1.2 EV and Non-EV Batteries Must Be Separated
| Battery Category | Section 301 Rate | Effective Timing | Typical Consideration |
|---|---|---|---|
| Lithium-ion EV batteries from China | 25% | Effective in 2024 | Battery is of a kind used as the primary power source for specified electric vehicles. |
| Lithium-ion non-EV batteries from China | 25% | Effective in 2026 | Can include batteries for industrial, medical, consumer, security, and infrastructure equipment, subject to classification. |
The table shows the additional Section 301 rate, not a guaranteed total landed tariff. The normal HTSUS rate and other applicable Chapter 99 duties must be evaluated separately.
1.3 New Forced-Labor Section 301 Duty Effective July 24, 2026
On July 23, 2026, USTR announced final action in Section 301 investigations concerning the failure of 60 economies to impose and effectively enforce prohibitions on imports produced with forced labor. Products of China are generally subject to an additional 12.5% Section 301 duty under this action, unless covered by an exemption.
The additional duty applies to covered products entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. eastern time on July 24, 2026. A limited in-transit exception applied to qualifying goods loaded before the effective time and entered before July 28, 2026.
| 2026 Duty Layer for Chinese Lithium-Ion Batteries | Illustrative Rate | Important Qualification |
|---|---|---|
| Normal HTSUS duty | Often 3.4% under 8507.60 | Confirm the exact 10-digit HTS classification. |
| Legacy China Section 301 duty for covered non-EV batteries | 25% | Effective for covered non-EV lithium-ion batteries in 2026. |
| Forced-Labor Section 301 duty | 12.5% | Generally applies to products of China unless an exemption covers the product. |
The final notice includes product exemptions. Lithium-ion batteries classified under 8507.60 are not broadly exempt for ordinary medical or industrial use; the listed 8507.60 exemption is tied to qualifying civil aircraft and related articles. Importers must still review the current Chapter 99 notes and the exact scope of every exemption.
1.4 Why Old “Combined Tariff” Figures Become Unreliable
A single percentage quoted in an article can quickly become misleading. Tariffs may be layered, suspended, modified, excluded, or applied according to different entry dates. In addition, the same commercial project may involve cells, completed packs, chargers, BMS boards, cables, and host equipment classified under different tariff provisions.
For this reason, procurement teams should avoid using a generalized combined rate as a purchase-order assumption. Build the calculation from the actual HTS code and current Chapter 99 treatment for each imported item.
Part 2: HTS Classification for Lithium-Ion Cells and Battery Packs
2.1 Start with HTSUS Heading 8507.60
Lithium-ion storage batteries are generally classified under HTSUS heading 8507.60. In the 2026 Harmonized Tariff Schedule, the general Column 1 rate for 8507.60.00 is listed as 3.4%. Statistical breakouts distinguish particular product types, including certain EV batteries, battery energy storage systems, and other lithium-ion batteries.
| Illustrative Classification | Description | Why It Matters |
|---|---|---|
| 8507.60.00 | Lithium-ion batteries | Core HTS heading; the applicable statistical suffix must still be identified. |
| 8507.60.00.10 | Certain lithium-ion batteries used as the primary power source for specified EVs | Separates qualifying EV batteries from other batteries. |
| 8507.60.00.30 | Certain battery energy storage systems fully encased within a housing | BESS classification depends on the applicable statistical note and product construction. |
| 8507.60.00.90 | Other lithium-ion batteries | Frequently relevant to non-EV packs, but classification must be confirmed for the actual product. |
HTS suffixes and statistical reporting categories can change between annual revisions. Always use the current schedule rather than copying a code from an old commercial invoice or article.
2.2 Product Description Alone Is Not Enough
Voltage, capacity, chemistry, enclosure, intended use, included charger, and whether components are imported together can affect classification. In a March 2026 CBP ruling, a rechargeable 3.7V, 1150mAh lithium-ion replacement battery for a noise-canceling headset was classified under HTSUS 8507.60.0090. This example is useful, but a CBP ruling applies to the merchandise described in that ruling and should not automatically be extended to a different pack.
When classification uncertainty could materially change duty, importers may consult a customs professional or request a binding ruling from U.S. Customs and Border Protection.
2.3 Cells, Battery Packs, Chargers, and Host Devices May Differ
A shipment described commercially as a “battery solution” may contain several legally distinct items:
- Lithium-ion cells
- Assembled battery packs
- BMS or PCM assemblies
- AC/DC chargers and adapters
- Battery cables, connectors, and accessories
- A battery installed in or packed with equipment
Classification for customs duty is separate from dangerous-goods classification. UN 3480 and UN 3481 determine how lithium-ion batteries are described and handled for transport, but they do not replace the HTS classification used to calculate import duty. See our guide to UN 3480 vs UN 3481 for the transport distinction.
Part 3: How to Calculate the Potential Import Duty
3.1 Use a Layered Calculation
A practical landed-duty review can be organized into the following layers:
- Customs value: Establish the transaction value or other permitted valuation basis.
- Base HTSUS duty: Apply the normal rate for the confirmed HTS classification.
- Section 301 duty: Determine whether the Chinese-origin product is covered and identify the applicable Chapter 99 subheading.
- Other trade measures: Check whether any additional Chapter 99 measures apply on the entry date.
- Exclusions: Verify whether the exact product qualifies for a current exclusion and satisfies its scope.
- Fees and logistics: Add merchandise processing, brokerage, freight, insurance, and other relevant charges.
Do not simply add a rate found in a news article to the supplier’s quoted price. The customs value, classification, origin, and entry date must all align with the declaration.
3.2 Illustrative Calculation, Not a Customs Determination
Assume a Chinese-origin non-EV lithium-ion battery pack has a customs value of $100,000, is entered after July 24, 2026, is confirmed under a classification carrying a 3.4% normal duty, and does not qualify for an exemption. Before considering any other applicable measures or fees, the three illustrated duty layers would be:
| Layer | Illustrative Rate | Illustrative Amount |
|---|---|---|
| Normal HTSUS duty | 3.4% | $3,400 |
| Legacy China Section 301 duty | 25% | $25,000 |
| Forced-Labor Section 301 duty | 12.5% | $12,500 |
| Illustrative subtotal | 40.9% | $40,900 |
This example is not a statement that every Chinese lithium-ion battery has a total duty of 40.9%. The applicable result depends on classification, product exemption, origin, entry date, other Chapter 99 measures, and current customs guidance.
3.3 Country of Origin Is Not Always the Shipping Country
Section 301 duties are based on country of origin rather than the port or country from which the goods are shipped. Routing a Chinese-origin battery through another country does not automatically change its origin. A substantial manufacturing operation may affect origin, but relabeling, repacking, or simple assembly usually cannot be assumed to do so.
Importers should maintain bills of materials, production-flow records, supplier declarations, and other evidence supporting the declared origin.
3.4 Forced-Labor Section 301 Is Different from UFLPA Enforcement
The new Forced-Labor Section 301 duty and U.S. forced-labor import enforcement are separate mechanisms. The Section 301 action imposes an additional tariff because an investigated economy failed to adopt or effectively enforce a prohibition on imports produced with forced labor.
By contrast, Section 307 of the Tariff Act and the Uyghur Forced Labor Prevention Act can result in detention, exclusion, or seizure of goods suspected of being produced wholly or in part with forced labor. Paying the additional 12.5% duty does not protect a shipment from UFLPA or Section 307 enforcement. Battery importers should maintain supply-chain traceability for cells, cathode and anode materials, graphite, lithium compounds, metals, electronic components, and other relevant inputs.
Part 4: Implications for Medical and Industrial Device Manufacturers
4.1 Recalculate Total Cost at the Design Stage
Tariff exposure should be reviewed before battery design is frozen. A pack’s voltage, capacity, form factor, enclosure, charger, and communication interface may influence sourcing and classification decisions. Waiting until mass production can make redesign expensive and delay certification.
For medical battery solutions, changes to the cell or pack may also trigger verification, risk-management, documentation, and regulatory work. The cheapest cell price is therefore not necessarily the lowest total project cost.
4.2 Separate Battery Cost from Integration Value
A custom battery pack may include cell matching, protection electronics, fuel gauging, thermal monitoring, mechanical design, communication protocols, traceability, and compliance testing. Procurement comparisons should evaluate the complete engineered system rather than comparing only dollars per watt-hour.
For industrial battery systems, a properly designed pack can reduce downtime, simplify device integration, and improve performance in vibration, moisture, or temperature extremes. These lifecycle benefits may outweigh a narrow unit-price difference.
4.3 Build Tariff Clauses into Supplier Agreements
Contracts should clearly define Incoterms, importer of record, declared product description, HTS responsibility, origin documentation, and how new duties are handled. Buyers should also specify whether quotations include customs duties and whether tariff changes allow price adjustment.
Part 5: Procurement Actions for 2026
- Confirm the 10-digit HTS classification for every imported battery, charger, and accessory.
- Check current USTR Section 301 coverage using the 8-digit HTS subheading.
- Review the latest Chapter 99 notes and effective dates before entry.
- Validate country of origin using the actual manufacturing process.
- Determine whether an exclusion applies to the exact product description.
- Model landed cost under more than one tariff scenario.
- Maintain a second-source and inventory-continuity plan.
- Coordinate customs planning with product certification and engineering change control.
Battery sourcing decisions should not compromise safety, quality, or traceability merely to pursue a lower tariff. Work with engineering, compliance, logistics, and customs specialists as one team.
Part 6: Official Resources to Check Before Shipment
- USITC Harmonized Tariff Schedule for current classification text and normal duty rates
- USTR Section 301 tariff search for additional duty coverage
- CBP Section 301 FAQs for customs administration guidance
- CBP CROSS rulings database for classification decisions involving comparable products
- USTR Forced-Labor Section 301 final action for the 2026 rates, effective date, and exemption framework
Because tariff schedules and trade measures can change, record the date on which each source was checked and have the importer or customs broker approve the final entry instructions.
FAQ
What is the Section 301 tariff on Chinese non-EV lithium-ion batteries in 2026?
The additional Section 301 rate is 25% for covered Chinese lithium-ion non-EV batteries in 2026. This is not necessarily the complete tariff. The normal HTSUS duty and any other applicable Chapter 99 measures must also be considered.
What is the new Forced-Labor Section 301 tariff on products of China?
Covered products of China are generally subject to an additional 12.5% Section 301 duty under the forced-labor action effective July 24, 2026, unless a product exemption applies. This duty is separate from the legacy China Section 301 tariffs.
Does paying the Forced-Labor Section 301 duty prevent UFLPA detention?
No. The tariff action and UFLPA enforcement are separate. A shipment may still be detained, excluded, or seized if CBP identifies forced-labor concerns, even when all applicable duties have been paid.
Do all lithium-ion batteries imported from China have the same total duty?
No. Total duty depends on HTS classification, product configuration, country of origin, entry date, applicable trade measures, and exclusions. Cells, battery packs, BESS products, chargers, and equipment containing batteries may receive different treatment.
Is UN 3480 or UN 3481 used to calculate customs duty?
No. UN 3480 and UN 3481 are dangerous-goods transport classifications. U.S. import duty is calculated using the HTSUS classification and any applicable Chapter 99 provisions.
Does shipping a Chinese battery through another country avoid Section 301 duty?
Not by itself. Section 301 treatment is based on country of origin, not merely the shipping route. Importers must support any claimed origin with the actual manufacturing facts.
Can Large Power help reduce tariff liability?
Large Power does not provide customs or legal advice. Our engineers can support battery architecture, documentation, component selection, testing, and supply-chain planning so customers and their customs professionals can evaluate the project accurately. Contact Large Power to discuss a custom battery project.
Disclaimer: This article provides general technical and commercial information and does not constitute legal, tax, or customs advice. Tariff treatment is product-specific. Consult a licensed customs broker or qualified trade professional before importing.
