1 2 AA 3.6 VOLT LITHIUM BATTERY
$66.99 ER3STC | 3.6 Volt 1/2 AA Cell Battery
AA Ni-MH 600mAh Rechargable Batteries for Solar Powered Units (12-Pack), 1.2-volt 600mAh Ni-MH
3.6 Volt Lithium Battery With Leads - 3.6 Volt NiMH Battery Pack (1200 mAh) with Leads | eBay