Amazon offers the Energizer Advanced Lithium AAA Batteries 4-Pack for $3.94 with free shipping via the directions below. That's the lowest total price we could find for this 4-pack by $9. To get this deal:

1. Sign into Amazon by clicking here
2. View the Energizer Advanced Lithium AAA Batteries 4-Pack for $6.99
3. Clip the coupon on the product page to redeem a $2 off discount
4. Add it to your cart via Subscribe & Save to cut it to a net price of $3.94 with free shipping