For newsletter subscribers only, Newegg offers the RAVPower 14,000mAh External Backup Battery Pack in Black or White, model no. RP-PB13, for $42.99. Coupon code "EMCPGPF87" cuts it to $34.99. With free shipping, that's tied with our mention from last week and the lowest total price we could find by $5. The battery pack features a built-in flashlight, auto-off, and compatibility with a wide range of devices (including the iPad, iPhone, and Android phones and tablets) Coupon expires March 10.