Amazon offers a selection of Duracell batteries, as listed below. Add each to your cart via Subscribe & Save where applicable to cut 5% off and clip the coupon below the price to get up to another $3 off. With free shipping, that puts each at the lowest total price we could find by at least $4. The deals:

• Duracell Keyless Entry 12-Volt Alkaline Battery 2-Count 6-Pack for $3.77
• Duracell Mini Charger with 2 Pre Charged AA Batteries for $5.48
• Duracell Rechargeables StayCharged AAA Batteries 4-Count for $5.74
• Duracell Rechargeables StayCharged AA Batteries 4-Count (pictured) for $6.65