Features and Benefits:This rechargeable power bank works with an EdgePower portable charging station system;EdgePower eliminates the need for extension cords and power strips, which are inconvenient, unsightly, and a potential trip hazard;A single EdgePower Rechargeable Battery can charge a typical laptop up to 2 times, an average smartphone up to 14 times, and a standard tablet up to 4 times;The Rechargeable Battery is easily interchangeable, allowing for uninterrupted use;Indicator lights keep you informed of charge level;On/Off switch activates the indicator lights;Specifications:Overall dimensions: 9.1" D x 3.0" W x 2.1" HCapacity: 146.52Wh (18 cells)Cell type: 18650 Li-ion battery (2200mAh at 3.7V)Life cycles: 500 times (at higher than 80% of the initial capacity)Shelf life: 1 year after first chargeBattery shipping classifications: UN 3480Battery cell recharge time: 2 hoursInput protection: Charging overflow protection, charging circuit protection;Enjoy convenient cordless charging of mobile devices. The KwikBoost EdgePower™ desktop charging station system is a total solution for laptops and mobile devices in workspace and classroom environments. EdgePower eliminates extension cords by putting power right where you need it.Featuring enough power to fully charge a typical laptop up to 2 times, a standard Chromebook or tablet up to 4 times, and an average smartphone up to 14 times, the EdgePower�s Rechargeable Battery provides hours of uninterrupted productivity. When it�s time for a recharge, simply swap it out with another Rechargeable Battery and keep working.To create a complete system, the Rechargeable Battery requires a KwikBoost EdgePower Clamp-On Desktop Charging Unit. You also need your choice of a Single Battery Charger, 3-Bay Base Charging Station, or 9-Bay Base Charging Station (sold separately or in bundles).