Jump Start a dead battery on a Truck,Automobile, Motorcycle, Boat, Jet Ski, and so much more in just seconds. It can jump start an automobile battery multiple times on a full charge. Suitable for V6 -3.5 L gas and UP TO 2.0 L diesel. This Jumpstart device offers a max current of 300Amps. You can also charge portable electronics with this 5400mAh powerbank. Keep all your devices such as Smartphones, Tablets, Bluetooth headsets, and any other DC 5V powered electronic devices fully charged. It will charge your Smartphone in approximately hour when fully charged.