Amazon still offers the Duracell Coppertop AAA Battery 20-Pack (pictured) for $6.87 with free shipping via the directions below. That's $0.34/battery, tied with our mention from two weeks ago, and the lowest total price we could find for this quantity by $5. To get this deal:

1. View the Duracell AAA Battery 20-Pack for $8.97
2. click "Clip this coupon" on the product page for 75 cents off
3. add it to your cart via Subscribe & Save for a final price of $6.87 with free shipping

Amazon also offers the Duracell Coppertop AA Battery 20-Pack for $7.02 with free shipping via the directions mentioned above. That's $0.35/battery, a buck under our mention from two weeks ago, and the lowest total price we could find for this quantity by $5. Note: Cancel Subscribe & Save once your order ships to avoid being billed for subsequent shipments.