UbestTech via Amazon offers the Proker 4,000mAh Battery Case for iPhone 8/7/6/6s for $29.99. Coupon code "NRXQ584V" knocks it to $19.19. With free shipping, that's tied with our mention from two weeks ago, $11 off, and the lowest price we've seen. Buy Now
Features
  • 4 LED indicators
  • sync-through technology
  • Model: 5962943157