Tyrone ER14250 Battery [ 1/2 AA Size ][ 10 Pack ][ LS 14250 3.6V 1200 mAh Lithium Non Rechargeable ], Batteries Compatible for Dog Watch Fence Collars and Some of Baby Movement Monitor/Alarm Systems

1/2 AA size lithium Thinly Chloride cylindrical cell high energy, high reliability 3.6 volt [non rechargeable]
Excellent memory backup power source, low Self discharge Rate gives this cell a 10 year shelf life
Stable voltage and broad temperature range (-60 to +85C)
Compatible with some of the measuring instruments and equipment in the laboratory and medical departments
Compatible with dog collar, some of home security systems/ alarm systems/ Baby movement monitor
Compatible with Dogwatch Smart Collar, R9, R9V, R8, R12, R3000, AR300 and most other older receiver models; typically lasts 2 years in R9 and R8 receivers, 1 year in the R9V and Smart Fence, and 1 year in older receiver models.
Compatible with Snooze Hero / Snooze Go (Not Fit for Snooze Hero SE and Go SE Model )