Fully charges iPhone, Galaxy or other smartphonesPatented "SmartJack" keeps the power for one yearNo Overload, No Overcharge, No Overheat, No Reverse Charge2400mAh lithium-ion batteryIncludes Flashlight and Weights Only 3 ozBattery(s): 1 Li-IonDimensions: 1.50x3.66x0.87 h (inches) / 4.00x9.30x2.20 (cm)