Walmart offers the Black & Decker 3-Position Rechargeable Screwdriver, model no. LI2000, for $14.98. (
Amazon offers it for the same price for Prime members.) Opt for Site-to-Store pickup to avoid the $4.97 shipping charge. That's the lowest price we could find by $2. It features a spindle lock for manual use, forward and reverse switch, and a puported battery lifespan of up to 18 months.