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HSChapter 85
U.S. imports of parts of electric storage batteries, including separators (HS 850790) totaled $385.4M in April 2026, traded with 46 countries.
Importers of Parts of Electric Storage Batteries, Including Separators paid $25.8M in duties in April 2026 — an effective duty rate of 15% on $174.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Parts of Electric Storage Batteries, Including Separators imports of $385.4M in April 2026 ran 54% above the year-to-date monthly average of $251.0M.
Last updated: April 2026 dataBattery separators, electrode plates, cases, and other components for electric storage batteries are classified here, with the US schedule drawing a key line between lead-acid battery parts (8507904000) and parts for all other battery chemistries (8507908000) — a distinction that affects both duty rates and Section 301 exposure for Chinese-origin goods. China is the dominant supplier, with South Korea and Mexico also significant sources; South Korean and Mexican parts may benefit from preferential tariff treatment under KORUS and USMCA, respectively. Importers assembling battery packs domestically rely heavily on this heading for cell-level components and separator films.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
HTS line 8507904000 covers parts specifically for lead-acid storage batteries, such as plates, grids, and separators designed for that chemistry. Line 8507908000 captures parts for all other battery types, including lithium-ion, nickel-metal hydride, and nickel-cadmium. The distinction matters because duty rates and Section 301 applicability can differ between the two lines.
Separators that are specifically designed and presented as parts of electric storage batteries classify under 8507.90. However, separator material sold in bulk rolls or not yet cut to shape may be classifiable under plastics or textile headings depending on its form and presentation. A binding ruling from CBP is advisable when the product is not clearly finished battery-specific.
Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| KOREA, SOUTH | $175.3M | $1.6M | -$173.7M |
| JAPAN | $73.5M | $1.4M | -$72.1M |
| CHINA | $73.5M | $157K | -$73.3M |
| GERMANY | $1.8M | $57.7M | +$55.8M |
| MEXICO | $26.4M | $14.2M | -$12.3M |
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8507908000 | STORAGE BATTERY PARTS (EXCEPT LEAD-ACID TYPE) | $367.8M | 14.70% | $24.3M |
| 8507904000 | LEAD-ACID STORAGE BATTERY PARTS | $17.6M | 15.26% | $1.4M |
STORAGE BATTERY PARTS (EXCEPT LEAD-ACID TYPE)
LEAD-ACID STORAGE BATTERY PARTS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8507908000 | STORAGE BATTERY PARTS (EXCEPT LEAD-ACID TYPE) | $73.3M |
| 8507904000 | LEAD-ACID STORAGE BATTERY PARTS | $9.4M |
STORAGE BATTERY PARTS (EXCEPT LEAD-ACID TYPE)
2.0M kg
LEAD-ACID STORAGE BATTERY PARTS
2.2M kg
MACH FOR RECP/CONVR/TRANS/REGN OF VOICE/IMAGE/DATA
HS 851762
SOLID-STATE NON-VOL SEMICONDUCTOR STORAGE DEVICES
HS 852351
SMARTPHONES
HS 851713
PROCESSORS AND CONTROLLERS, ELECTRONIC INTEG CIRCT
HS 854231
CONTROLS ETC W ELECT APPR F ELECT CONT NOV 1000 V
HS 853710
STATIC CONVERTERS; ADP POWER SUPPLIES
HS 850440
| State | Imports | Exports | Balance |
|---|---|---|---|
| Illinois | $124.8M | $1.7M | -$123.1M |
| Texas | $38.3M | $45.9M | +$7.6M |
| California | $53.9M | $9.7M | -$44.2M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LOS ANGELES, CA | $88.7M | $1.4M | -$87.3M |
| HOUSTON, TX | $21.1M | $50.4M | +$29.3M |
| CHICAGO, IL | $59.3M | $338K | -$58.9M |