Dealyard via Rakuten Shopping offers the Duracell AAA Pre-Charged Rechargeable Stay Charged Battery 18-Pack (three 6-packs), model no. DX24B6TB-3PACK, for $30. Apply coupon code "VISACHECKOUT10" and check out via Visa Checkout to cut the price to $20. With free shipping, that's $1.11 per battery and tied with our February mention as the lowest per-battery price we've ever seen. (It's also a current price low for this quantity by $9.) These pre-charged 800mAh AAA batteries purportedly retain power for up to 365 days while not in use.