For importers planning their 2027 summer collections, battery access belongs in the sourcing brief before tooling, packaging and purchase orders are approved. A rechargeable fan can look finished while its replacement process, spare parts and documentation remain unresolved. Addressing those questions during development gives brands a clearer route from working sample to market launch.
This guide explains the battery requirements that matter for USB handheld fans and USB desk fans, and the engineering and procurement decisions buyers should make with their manufacturing partners.
1. Understand what Article 11 changes
Article 11 of Regulation (EU) 2023/1542 applies from February 18, 2027. In general, products incorporating portable batteries must allow end users to remove and replace the complete battery throughout the product’s lifetime. Replacement must preserve safe operation and performance. The rule concerns products with incorporated batteries; USB power alone does not determine whether it applies.[1]
Removal by end users can involve commercially available tools. The regulation restricts reliance on proprietary tools, heat or solvents, and sets conditions for specialised tools. Tool-free access is an optional engineering choice.[1]
Check the rules applicable when individual units enter the EU market. A model launched before 2027 does not automatically exempt later units. Assess any derogation against the current legislation and guidance; an IP rating alone does not establish an exemption.[2]
2. Engineer the battery compartment as a service interface
A useful design review follows the replacement sequence from the customer’s perspective: isolate power, open the compartment, remove the battery, fit a compatible replacement and restore the enclosure. Our engineering recommendation is to review four areas:
- Mechanical access: Specify the cover, fasteners and opening method early. Provide sufficient clearance to handle the battery safely, and keep access separate from the blade guard and moving assemblies wherever practical.
- Electrical connection: Review connector polarity, retention and wire routing. Document voltage, chemistry, charging limits and protection requirements so a replacement battery can be selected against a defined specification.
- Enclosure integrity: Check that replacement does not pinch cables, loosen structural joints or compromise insulation. Evaluate the closed compartment during the product’s agreed handling and safety tests.
- Repeatability: Have an ordinary user follow the proposed instructions on a working sample. Record difficult steps, connector strain and fastener wear before approving the production reference.
For metal fans, include electrical isolation and contact with conductive parts in the review. For compact plastic handheld fans, allow realistic assembly tolerances and access space. Changes to battery geometry should trigger a documented review of the compartment, wiring and charging system.
3. Plan instructions and spare batteries together
Article 11 requires accompanying removal, replacement and safety information, with instructions permanently accessible on a public website. Compatible battery replacement must remain possible without software creating an obstruction.[1]
Spare batteries must generally remain available for at least five years after the last unit of the equipment model is placed on the market, on reasonable, non-discriminatory terms. This milestone differs from the factory’s final production date.[2]
For OEM projects, agree who maintains the instruction page, identifies compatible replacements and handles spare-battery enquiries. Record the battery reference and process for approving changes in the approved product file.
4. Separate market compliance from transport preparation
A removable battery addresses one part of product design. For market access, identify the applicable EU requirements and retain the relevant technical evidence. Private label brand owners should establish who takes manufacturer responsibility and signs the EU Declaration of Conformity; changing the logo does not remove those responsibilities.[3]
For lithium-battery shipments, obtain the applicable UN38.3 test summary and match its battery identification and report references to the actual configuration. Confirm with your freight partner whether batteries are shipped separately, packed with equipment or installed in equipment. Packaging, marking, documentation and applicable charge limits depend on the shipment.[4]
An MSDS/SDS can provide useful information when requested, but it does not establish transport compliance or guarantee customs clearance. IATA notes that safety data sheets are not universally required for articles and may provide inadequate transport classification information.[5]
Before booking freight, reconcile model names across the sample approval, battery records, labels, invoice and packing list. Resolve discrepancies while changes are still manageable.
5. How Marmotfans supports OEM projects for the EU
Foshan Marmot Intelligent Technology Co., Ltd. is a direct OEM/ODM USB fan manufacturer in Foshan, China. Our original designs and private molds provide a starting point for coordinated mechanical, branding and documentation reviews.
Our V6 and V7 desk fans feature removable batteries. Our new handheld designs also offer removable batteries and are available for private technical discussions. We confirm battery access and replacement arrangements for the selected configuration during project review.
We combine sampling, specification approval, production QC and document review for each model. Buyers can inspect available records in our Compliance & Quality Assurance center and request the files relevant to their fan, battery and adapter. Final compliance assessment covers the complete approved configuration and its intended market.