Stay charged anywhere with this lightweight power bank (aka portable charger) that fits easily into your pocket or bag. 15,000 mAh recharges a smartphone up to 5 times, placing the Pocket Power 15K ahead of its class as one of the most powerful portable batteries available. Two universal USB-A ports deliver up to 3.4A of total power to quickly and safely charge devices like smartwatches, fitness bands, headphones, speakers and more. A 5V 2.0A input allows the power bank to recharge quickly between uses, so you can keep moving. 15,000 mAh can recharge a state-of-the-art smartphone up to 5 times, providing an additional 43 hours of call time or 34 hours of web browsing. Don't worry about finding an outlet or staying on the grid with a power bank that will keep you charged for days on end. 2 universal USB-A ports deliver a total of 5V 3.4A output so you can charge your devices in no time, just use the cable provided to begin charging. Recharge between uses quickly with 5V 2.0A input via a micro-USB port. Simply connect to a wall charger or other power supply using the Micro-USB cable provided to recharge your power bank (a.k.a. portable charger). Elegant design and lightweight components allow this power bank to travel with you hassle-free. Durable plastic casing keeps the internal circuit board safe in your pocket or bag. Powerful polymer battery cells are efficient alternatives to heavier traditional cells, making Pocket Power 15K even easier to transport. Belkin batteries include sensors to monitor heat, voltage and circuitry so the device won't overheat or surge. Excess heat, voltage fluctuation or circuit abnormalities activate an override that immediately shuts the battery down and keeps your devices safe.