For Thursday’s iLounge Deal, you can get the Graphene 8K HyperCharger PRO for only $39.99 — that’s 50% off the regular price. This 8,000 mAh battery pack provides you with power on the go for your iPhone and other portable devices, and looks good while doing it with a sleek and low-profile design and high-gloss finish. Built-in Lightning and micro USB connects mean that you’ve got all of the cables you need with you, and the included non-adhesive NanoStick PRO pad lets you attach the charger right onto your iPhone.