9to5Toys Specials currently offers the ZeroLemon ToughJuice 30,000mAh Battery Pack for $59.99 with free shipping. It lets you bring plenty of backup power wherever you may be headed.

Most backup batteries have delicate skins, but not so with the ToughJuice. The internal cell is encased in two layers of protection — a soft anti-shock shell, with a hard plastic material for impact dispersion. The battery inside has considerable capacity. At 30,000mAh, there is enough power here to charge an iPhone eleven times over. It has four USB ports, which have a total charging output of 6A, meaning you can easily top up a phone and a tablet at the same time at full speed. Given this functionality, the ToughJuice is also remarkably compact, at under four inches wide.

  • Premium li-polymer battery cells
  • Quad USB ports with total 6A output to charge four devices simultaneously at top speed
  • Enormous 30,000mAh capacity
  • Double layer anti-shock softshell, and hard plastic material to disperse extreme shocks

This deal takes 40% off the price of the ToughJuice, with free shipping thrown in.