Amazon offers the Duracell AA Pre-Charged Rechargeable NiMH Battery 4-Pack (pictured), model no. DX1500, or the Duracell AAA Pre-Charged Rechargeable NiMH Battery 4-Pack, model no. DX2400, for $6.78 with free shipping via the directions below. That's tied with last week's mention and the lowest total price we could find for either pack by $6, although we saw AA batteries for a few cents less earlier this week (since expired). To get this deal:

1. View the Duracell AA or AAA Pre-Charged Rechargable Batteries 4-Pack for $9.74.
2. Click "Clip this coupon" on the product page to take $1.50 off.
3. Add it to your cart via Subscribe & Save to cut it to $8.28 and score free shipping.
4. proceed to checkout and pay $6.78.