Amazon offers the Duracell Pre-Charged Rechargeable AAA Batteries 4-Pack, model no. AAA-RCHG-STAYx4, for $7.97 with free shipping via the directions below. That's the lowest total price we could find by $5, although we saw them bundled with a $5 Amazon gift card for the same price in December.

1. View the Duracell Pre-Charged Rechargeable AAA Batteries 4-Pack for $9.97
2. clip the $1.50 off coupon on the product page to drop it to $8.47
3. add it to your cart via Subscribe & Save to cut it to $7.97.

Be sure to cancel Subscribe & Save after your order ships, or you'll be billed for subsequent shipments.