Amazon again offers the Energizer Max AAA Battery 34-Pack for $13.21. Clip the $5 off coupon on the product page to drop them to $8.21. Plus, Prime members receive free shipping. (Non-members can spend $49 to bag free shipping; otherwise, shipping adds $5.67.) That's tied with our mention from a week ago and at least $11 less than you'd spend at a local retail store.