Black & Decker VP810 3.6-Volt Versapak Screwdriver for $29.97 shipped.  Here is a screenshot for your reference.  This 3.6-volt Screwdriver has a locking pivoting handle for in-line or pistol-grip handling positions, rechargeable VersaPak battery interchangeable with other VersaPak tools, and a 24-position clutch.  Most places have it for about $40.