New Trent Easypak 7000mAh Portable Triple USB Port External Battery Charger/Power Pack for Smartphones, Tablets and more (w/built-in USB cable)
After reading reviews on Amazon for a few different charging products I spent a little more money than the cheapest products and purchased the Trent IMP500 battery pack.  It works as promised and I'm glad I bought it.  Simple to charge it and then to use it to recharge my iPod and HTC Droid Incredible smartphone (one at a time, 3 hours or so to fully recharge, same timeframe as a wall plug).  I use it mainly to charge the smartphone since my iPod mainly gets used in the car using a power connection.      Th