For its newsletter subscribers, Newegg offers the RAVPower 14,000mAh External Backup Battery Pack in White, model no. RP-PB13, for $42.99. Coupon code "EMCPWHG88" cuts the price to $34.99. With free shipping, that's tied with our mention from three weeks ago and the lowest total price we could find by $5, although we saw it for $4 less last month. It features a built-in flashlight, auto-off, and compatibility with a wide range of devices (including the iPad, iPhone, and Android phones and tablets).