Other accumulators

CN code 850780 covers electric accumulators (secondary cells) not specified in other subheadings of heading 8507, including lead-acid, nickel-cadmium, nickel-metal hydride, and lithium-ion accumulators which each have dedicated subheadings. In commercial practice, this code classifies newer and less common energy storage technologies: sodium-ion (Na-ion) batteries, zinc-air accumulators, vanadium redox flow batteries (VRB), silver-zinc batteries, and other secondary cells based on non-standard electrochemical couples. Hybrid supercapacitors combining characteristics of accumulators and capacitors may also be classified here if their dominant function is electrochemical energy storage. Classification under 850780 requires prior exclusion of more specific subheadings: 850710 (lead-acid), 850720 (other lead-acid), 850730 (NiCd), 850740 (NiFe), 850750 (NiMH), and 850760 (Li-ion). Products must meet the definition of an accumulator - a cell capable of repeated charging and discharging. Non-rechargeable primary batteries are classified under heading 8506. The market for accumulators under 850780 is growing as alternative energy storage technologies develop commercially.

Importing accumulators under CN code 850780 into the EU is subject to Regulation (EU) 2023/1542 (Battery Regulation), which covers all battery types placed on the EU market. Regardless of chemical technology, importers must ensure QR code labelling, nominal capacity and voltage information, and chemical composition data. Industrial batteries above 2 kWh require a carbon footprint declaration. Importers must register in the national battery producer register and participate in the waste battery collection and recycling system. Batteries under CN 850780 are subject to the RoHS 2 Directive (2011/65/EU) when intended for EEE within its scope. Transport is regulated under ADR/IMDG/IATA depending on chemical composition - batteries containing lithium, sodium, or other reactive metals require specific packaging and labelling conditions. Importers require an EORI number and must submit a customs declaration with the correct CN code. Documentation includes a commercial invoice with technical specifications, Battery Regulation compliance certificate, Safety Data Sheet (SDS), and test reports confirming electrical and mechanical safety. The GPSR (General Product Safety Regulation EU 2023/988) applies to consumer-facing battery products.

MFN customs duty rates for CN code 850780 should be verified in the European Commission's TARIC database. Accumulators under this heading are not subject to CBAM. Preferential duty rates may be available under EU FTAs, subject to rules of origin compliance and valid proof of origin. Classification under 850780 requires careful exclusionary analysis - the importer must demonstrate that the accumulator does not qualify for any of the more specific subheadings 850710-850760. Technical documentation should clearly identify the electrochemical couple (anode and cathode type) and electrolyte to enable proper classification. The sodium-ion battery market is growing rapidly as a cheaper alternative to Li-ion, which may lead to a dedicated CN subheading in future Combined Nomenclature revisions. Importers should monitor CN classification changes effective 1 January each year. Before customs clearance, it is recommended to verify the current 10-digit TARIC code and any applicable trade measures. Where classification doubts exist, Binding Tariff Information (BTI) application to the competent customs authority is recommended.

Accumulators under CN 8507 80 are subject to the EU Battery Regulation (EU) 2023/1542. From 2025, a carbon footprint declaration is required for EV and industrial batteries. From 2027, minimum recycled content applies. Li-ion accumulators require ADR/IMDG transport compliance (UN 3481). MFN duty: 2.7%. Producer registration and REACH compliance are mandatory.