There are never enough airport outlets
đ There are never enough airport outlets: Smart charging protects your phoneâs battery over time by only topping you up to 85%. But if youâre on the go or need every bit of juice, you can turn it off. On iPhone, head to Settings > Battery > Battery Health & Charging, then turn off Optimized Battery Charging. On Android, go to Settings > Battery > Adaptive Charging, and turn off Use Adaptive Charging.