Amazon offers the Duracell AA NiMH Rechargeable Batteries 4-Pack, model no. DC1500B4N, for $7.02 with free shipping via the directions below. That's $1.76 per battery and the lowest total price we could find by $3. To get this deal:

1. Add the Duracell AA NiMH Rechargeable Batteries 4-Pack to your cart for $8.97
2. clip the coupon under the price to cut it to $7.27
3. add it to your cart via Subscribe & Save to make it $7.02 with free shipping

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