FEATURES Incredibly Efficient Large-Capacity Battery Has a powerful, rechargeable lithium-ion battery that has a true 5200 mAh capacity, allowing it to hold up to 5x the juice of a standard mobile phone and 2x more than a standard smartphone. It can even give a full charge to your tablet. And even though it holds loads of extra power, it gets a full charge in only 5 hours. Added Convenience Give it a boost and leave it in the glove box, at the office, in your briefcase, or with a friend. You will always have a fresh power supply handy, whether or not you remembered to bring a charger along on your travels. Intelligent Operation It uses proprietary Arkmon software that bakes in amazing efficiency while making it a priority to protect your gadgets. This state of the art software regulates the electrical currents flowing through it, ensuring it will never overheat or cause damage to your devices. It also eliminates the type of power loss that often occurs with lower quality batteries. Safe for Any Device Its universal USB attachment suits almost any mobile device, making it a great option for a variety of smartphones, tablets, and other peripheral devices. It also features built-in safety measures including overcharge protection, discharge protection, surge-over-current protection, and short-circuit protection. Whatever the size, specs, or value of your device, its fail-safes make is safe to attach. Beautiful Design Its small, svelte, Swiss-built body is comprised of polyurethane and aluminum materials, allowing it to be both durable and lightweight that measures only 3.75 x 1.5 x 1 inches and weighs just 5 ounces. You can tuck it in your pocket or toss it in your purse and always have extra power handy. Detailed LCD Battery Readings Provides numbered battery readings from 1-99, so you will be able to plan your power distribution accordingly.