Lepow Official via Amazon offers Prime members the Lepow Moonstone 6,000mAh External Battery Pack in Apple Green, model no. L-MS6000-AppleGreen-US-01-FBA, for $24.99. Coupon code "G99EZFJE" cuts it to $15.99. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $5.55.) With free shipping, that's tied with our mention from last week as the lowest total price we've seen. (It's also a current price low by $9.) It features two USB ports and is compatible with most smartphones and tablets.