Summary: EASA published a June 2026 revision of its Easy Access Rules for Unmanned Aircraft Systems. The update consolidates the rules and guidance around EU UAS operations and incorporates the latest SORA 2.5 material. It does not prescribe a particular 18650 or 21700 battery cell. For a European commercial-drone buyer, however, the update is a useful reminder that a battery-pack decision must connect cell selection with the intended operation, pack engineering, traceability and transport documentation.
Commercial UAV projects are rarely solved by choosing the highest-capacity cell on a datasheet. A pack for inspection, mapping, public-safety support or other professional work has to fit the aircraft’s current profile, usable energy target, thermal design, protection architecture and operational environment. The pack builder and operator remain responsible for the complete system and its use; a cell supplier can support technical matching and document confirmation, but cannot certify an aircraft operation.
What changed in the EASA June 2026 UAS update?
EASA’s Easy Access Rules for UAS were revised on 30 June 2026. EASA states that the consolidated publication covers Regulation (EU) 2019/947, the associated acceptable means of compliance and guidance material, and Regulation (EU) 2019/945. The revision incorporates material stemming from ED Decision 2025/018/R and introduces the SORA 2.5 package developed by JARUS.
Procurement implication: the update should not be read as a new cell-model approval list. It does reinforce the need for professional UAS teams to define the intended operation before finalising the battery pack. A clear operational brief gives the pack engineer a better basis for evaluating peak-current demand, reserve-energy policy, redundancy, thermal margins and validation evidence.
Why the operating concept matters before selecting 21700 cells
For a commercial drone battery pack, capacity in mAh is only one part of the decision. A procurement brief should state the aircraft type, propulsion configuration, normal and peak current demand, target flight profile, pack series/parallel architecture, charger limits, environmental conditions and planned European destination. This lets the technical team compare a proposed 21700 cell against the actual pack requirement instead of using a generic “high-rate” label.
| Information to confirm | Why it affects the pack decision |
|---|---|
| Continuous and peak current | Helps assess cell operating margin, busbar design and heat management. |
| Usable-energy target and reserve policy | Connects pack capacity with mission profile rather than nominal cell capacity alone. |
| Series/parallel configuration | Determines voltage window, current per parallel path and BMS strategy. |
| Aircraft and operating environment | Supports realistic thermal and vibration validation planning. |
| Destination and shipment route | Allows the buyer to identify document and freight-planning needs early. |
U-space and professional operational planning
EASA explains that U-space airspace is designated by Member States after an airspace-risk assessment. Where a UAS operates in U-space, EASA says operators need to use U-space services, including flight authorisation, geo-awareness, network identification and traffic information. Requirements under the UAS regulations remain applicable in U-space.
This is operational context, not a battery-cell specification. Still, it matters to a procurement conversation because professional teams should prevent a battery choice from becoming a late-stage engineering uncertainty. Where the mission and operational concept are documented early, it is easier to align pack testing, spare-pack planning, charging procedures and evidence records with the project plan.
What can a cell supplier confirm before a UAV quotation?
Before issuing a B2B quotation, a supplier can confirm the requested cell model or target specification, available technical documentation for that model, proposed quantity, destination country and the commercial shipment route under discussion. The buyer should provide the intended pack configuration and required current profile. Final pack-level performance, protection design, aircraft integration and operational compliance must be validated by the responsible pack manufacturer and operator.
Documents: separate cell evidence from aircraft and operational evidence
One common procurement error is to treat a cell document as if it proves the full drone system. It does not. Cell-level technical documents and applicable transport-test information support sourcing and logistics. Pack-level test records, BMS configuration, charger behaviour, mechanical protection and aircraft integration belong to the pack or aircraft validation process. Operational authorisation and risk assessment are separate responsibilities for the relevant operator and authority.
For lithium battery transport, buyers should ask early which documents are required by the selected carrier, freight forwarder and destination process. The exact document set depends on the product, how it is offered for transport, the route and the shipment arrangement. Do not assume that a file for one model, pack or route automatically applies to another.
A practical request-for-quotation checklist
- State whether the requirement is for 21700 cells, 18650 cells, or an alternative target specification.
- Provide the intended pack series/parallel configuration or the voltage and energy target.
- Provide continuous and peak current requirements, with the relevant operating duration.
- State the application: inspection, mapping, industrial UAV, agriculture, public safety or another professional use.
- State required quantity, sample requirement and target delivery country.
- List the technical or shipment documents your engineering and logistics teams require.
How Sufeng supports a European UAV battery-cell sourcing review
Sufeng New Energy supplies LiFePO4 prismatic cells and 18650/21700 lithium-ion cells for B2B projects. For a UAV-cell sourcing discussion, share the model or target specification, quantity, application, delivery country and required documents. The first objective is a traceable technical match for the pack project—not an unsupported claim about flight time, inventory or regulatory approval.
Read the 21700 UAV battery-cell selection guide or request a wholesale technical review.
Sources
Updated: 25 August 2026. This article is an operational procurement explainer, not legal, aviation-safety or transport-compliance advice.