Sometimes it can be a real challenge keeping the iPhone charged. I use mine so much that I often run out of battery at the most inconvenient of times. That’s why our newest deal is so sweet. The iPhone 4/4S Solar Charger Battery Case by Monster Watts uses solar power to charge its built in battery pack, so it’s ready to give your iPhone a boost whenever it’s needed. Normally valued at $128, we’re bringing you this case for only $79. Head on over to our deals page for more details.