# HORIZON-CL5-2027-04-Two-Stage — Batteries And Mobility

**Funder:** Batteries (BATT4EU)
**Deadline:** 14 April 2027 (Two-stage call — pre-proposal deadline shown; see the call page for the full-proposal date)
**Consortium:** Required — minimum 3 independent legal entities from 3 different EU Member States or Associated Countries, at least one in a Member State (Horizon Europe standard)
**Application:** Pre-proposal submission: 2027-04-14
**Official call:** https://www.era-learn.eu/network-information/networks/batteries/horizon-cl5-2027-04-two-stage-batteries-and-mobility
**Last updated:** 18 Oct 2026

## Eligibility & scope

HORIZON-CL5-2027-04-Two-Stage - BATTERIES and MOBILITY, listed under Batteries (BATT4EU) on the ERA-LEARN call calendar. See the call guidance for funding, eligibility and consortium requirements.

## Summary

HORIZON-CL5-2027-04-Two-Stage funds collaborative research on batteries and mobility under the BATT4EU partnership within Horizon Europe Cluster 5. The call requires a multi-country consortium and runs a two-stage submission process, starting with a pre-proposal. It targets research and innovation teams across academia and industry working on battery technologies for transport applications.

## Who should apply

- Consortia of researchers and innovators working on battery technologies for mobility
- Teams spanning at least three independent legal entities from three different EU Member States or Associated Countries
- Institutions able to coordinate cross-border collaborative projects
- Applicants with at least one partner based in an EU Member State

## Key dates

- Pre-proposal deadline: 14 April 2027
- Full-proposal date to be confirmed via the call page (two-stage evaluation)

## Tips for applicants

- Confirm your consortium meets the three-country, three-entity minimum before investing time in the pre-proposal.
- Check the official call page for the full-proposal deadline, as only the pre-proposal date is confirmed here.
- Align the project scope explicitly with BATT4EU partnership priorities on batteries and mobility to strengthen fit with the call.

## Frequently asked questions

### When is the deadline for HORIZON-CL5-2027-04-Two-Stage?

The pre-proposal deadline is 14 April 2027; the full-proposal deadline is announced on the call page.

### How many partners are needed for this BATT4EU call?

A consortium of at least three independent legal entities from three different EU Member States or Associated Countries, with at least one entity in a Member State.

### Is this a one-stage or two-stage application process?

It is a two-stage call, starting with a pre-proposal submission on 14 April 2027.

### Who funds the HORIZON-CL5-2027-04-Two-Stage call?

It is funded under the Batteries (BATT4EU) partnership as part of Horizon Europe Cluster 5.

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Source: [The Great Grantsby](https://grantsby.eu/grants/batteries-batt4eu-horizon-cl5-2027-04-two-stage-batteries-and-mobili) — EU grant monitoring for academic researchers. Always verify details on the funder's website before applying.

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