Northwest-Outdoor via eBay offers the Mophie Juice Pack 2,300mAh Battery for Samsung Galaxy S III in White, model no. JP-GALAXY-SIII, for $17.99 with free shipping. That's $5 under our mention from last week and the lowest total price we've seen. (It's a current low by $2.) This 2,300mAh battery pack features an LED light charge indicator and purportedly recharges your phone in 90 minutes.