Amazon.com: Saft LS-14250 1/2 AA 3.6V Lithium Primary Battery for Mac computers (non Rechargeable) : Health & Household
Amazon.com: 1/2 AA Size LS 14250 ER14250 3.6 Volt 1200 mAh Lithium Batteries 4 Pack, Tyrone Batteries Compatible for Dogwatch Dog Collar and Some of Movement Monitor/Home Security System/Alarm System : Health & Household