Amazon offers Amazon Prime members the Duracell Value Charger with four AA Batteries, model no. CEF14DX4, for $10.99. Click the $1.50 coupon below the price to drop it to $9.49. With free shipping, that's a buck below our July mention and the lowest total price we could find by $7. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $5.17.) This unit connects directly to the wall to charge NiMH AA or AAA batteries.

Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months. (Note that currently there's a waitlist for Amazon Mom.)