$55.99 3.6 Volt Lithium Battery With Leads - 3.6 Volt NiMH Battery Pack (1200 mAh) with Leads | eBay 
Omnicel ER14250 (LS14250) 1/2 AA 3.6 Volt Primary Lithium Battery (1200 mAh) + Free Shipping 
Saft 1 2Aa 3.6 V Lithium : Saft 3 6v Lithium Battery Ls14250 1 2aa / Up to 25 years of mass 
