Newegg offers the RAVPower 12,000mAh External Battery Pack in White, model no. RP-PB07U, for $34.99. Coupon code "EMCPBHD229" cuts it to $24.99. (Sunvalleytek via Amazon charges the same for Prime members.) With free shipping, that's $3 under our mention from last month, $75 off, and the lowest total price we've ever seen. It features 1-amp and 2.1-amp USB outputs and is compatible with iPhone, iPad, iPod, and many smartphones. Deal ends September 1.