Lancelot is so smart

Like many of his peers, Lancelot is frequently frustrated by the short battery life of his iPhone. Lancelot also often finds himself rather thirsty during the long hot days of Summer. Suddenly the genius hedgehog has an inspiration - why not design a nano fridge that would clip onto the back of his phone? The coolant would serve to cool the phone and thus prolong its battery life and he would be able to keep a small water bottle chilled and ready to hand. Lancelot knows that nothing betrays one's identity as a tourist like carrying a water bottle. Now no one need ever know. Brilliant. Lancelot immediately contacts the patent office.