BS 7671 Amendment 4 introduces new requirements for residential battery installations, increasing the importance of safe outdoor installation solutions.
The introduction of BS 7671:2018+A4:2026 marks an important development in residential battery installation safety across the UK. The updated regulations place greater emphasis on fire safety and suitable installation locations. With its Batteryshelter, Conduct offers a practical solution for installing residential batteries safely outdoors.
New safety requirements for residential batteries
Published by the IET and BSI on 15 April 2026, BS 7671 Amendment 4 introduces a revised Chapter 57 covering stationary battery systems, including residential batteries.
The new requirements address fire safety, ventilation and installation locations. Batteries must not be installed in lofts, attics or escape routes, while suitable alternatives include appropriately separated garages, technical rooms, detached outbuildings and outdoor installations.
With the previous edition of BS 7671 expiring on 15 October 2026, installers across the UK must adapt to the updated requirements.
The Batteryshelter: Designed for safe outdoor installation
As outdoor installation becomes an increasingly relevant option, the Batteryshelter provides a practical, weather-resistant enclosure for residential battery systems.
Developed by Conduct Technical Solutions, this enables batteries to be positioned outside the home, protecting them from weather conditions while helping installers address installation location and safety considerations.
