Staples offers the Blue Tech Rechargeable Battery Charger, model no. AV-1000, for $14.99. Plus, Staples Rewards members qualify for free shipping. (Not a member? Click here to sign up for free.) That's the lowest total price we could find by $3. It holds up to four AA or AAA NiCad/NiMH batteries, has four charging modes, LCD screen, and includes a USB for phone charging. Deal ends March 14.