Double Port Micro Gomadic Car / Auto DC Charger suitable for the Apple iPod touch (4th generation) - Charges up to 2 devices simultaneously with Gomadic TipExchange Technology
Amazon.com: Pocxwa 1-Pack 30-Pin Charger Cable Compatible for Old iPhone 4 4S 3G 3GS, iPad 1 2 3, iPod Touch, iPod Nano USB Fast Charge & Sync Charging Cord : Electronics
Gomadic High Capacity Rechargeable External Battery Pack suitable for the Apple iPod touch (4th generation)
IPod Touch 4th Gen Charge Port : 4 Steps - Instructables
Apple iPod touch 4G (4th Generation) Dual Micro High Current Car Charger - 2 USB Port Rapid Car Charger (Polycarbonate Charger) – BoxWave