$62.99 Xeno/Aricell 1/2 AA Size 3.6V Lithium Battery XL-050F 4 Pack + FREE SHIPPING! - Walmart.com 
LS14250MLB | Saft LS14250MLB 3.6V Lithium Thionyl Chloride 1/2 AA Battery, 1200mAh | Saft
Saft 1/2 AA 3.6 V Lithium Battery with Tabs LS14250 Non Rechargeable With Loopacell Cloth 
