Estates and Facilities Notice – EFN2501
Published on 21 May 2025
From: NHSScotland Assure
EFN2501 - GS Yuasa SWL1100FR Lead Acid Battery: reports of smoking and electrical fires in UPS systems
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GS Yuasa were made aware that a small number of UK manufactured SWL1100FR lead acid batteries were found with a fissure on the corner of the battery container. Electrolyte leakage via this fissure results in localised corrosion to the battery shelf or tray. On occasion this has resulted in earthing (a "short"), causing blackening of the battery container and smoke.