Taotribe via Amazon offers Prime members the Vinsic 3,200mAh Tulip External Battery Pack
in Silver or Black for $14.95. Coupon code "ME5HDCSA" cuts it to $9.95
. Plus, Prime members bag free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $6.22.) That's a buck under our January mention, $30 off list, and the lowest total price we could find. It features compatibility with a wide range of devices (including the iPad, iPhone, and Android phones and tablets).