Over at Woot.com, they have a Two for Tuesday Energizer Energi To Go iPod/iPhone Battery Charger for $14.99. You're able to order up to three 2-packs. $5 shipping whether you buy 1 or 3. Good to use rechargable batteries with this so you dont throw away money on AA's and kill the enviroment, but it includes a 4-pack of engizer lithium batteries which are like $8.00. Note that this is one day only and expires at midnight central time and may sell out.