Eve ER14250V Lithium 3.6v 1/2AA battery – The Lamp Company
EEMB ER14250 1/2AA 3.6V 1200mAh Lithium Battery Li-SOCL₂ Non-Rechargeable XL-050F SB-AA02 LS14250 TL-5902 TL-2150 for Dogwatch Dog Collar and Some of Movement Monitor/Home Security/Alarm System (4): Amazon.co.uk: Electronics & Photo
EEMB ER14250 LS14250 1/2AA 3.6V 1200mAh Lithium Battery half aa batteries Li-SOCL₂ Non-Rechargeable Battery for Dogwatch Dog Collar and Some of Movement Monitor/Home Security/Alarm System (10): Amazon.co.uk: Electronics & Photo