BuyDig offers the NAZTECH 3,200mAh Battery Flip Case for Samsung Galaxy S5 in White (pictured), model no. 12885, or Black, model no. 12884, for $34.99. With free shipping, that's tied with last week's mention and the lowest total price we could find by $10. In addition to the extended battery life, it features an LED battery indicator and built-in kickstand.