For Electronics Ramway ER14250 3.6V AA size with pin Lithium battery
Amazon.com: EEMB 10Pack ER14250 1/2AA 3.6V Lithium Battery Li-SOCL₂ Non-Rechargeable Battery XL-050F SB-AA02 LS14250 TL-5902 TL-2150 for Dog Collar Meter Sensor Movement Monitor/Home Security System/Alarm System : Health & Household
Lot Lithium 1200mAh 3.6V ER14250 TL-2150 1/2AA EXP 2029 High Capacity Battery US | eBay