It wasn't long ago that so called "portable" jump starters were about as portable as 4 bricks with a handle on top. Things have changed a lot since then thanks to lithium battery technology. Indeed, this unit weighs in at around half a kilogram and could almost fit inside a shirt pocket! Not only is it light and portable with a whopping 850A cranking current, it also features a wireless Qi charger for your phone and two USB sockets for your other devices. You won't be caught in the dark either thanks to the built in torch with SOS beacon function. Charging is via the onboard USB C socket. Features: • LiCoO2 Battery • Reverse Polarity Protection • Short Circuit Protection • Low Voltage Protection • Overheat Protection Specifications DC current rating : 850.00000000A DC Voltage : 12.00000000V LED Light : true Jump Start Battery Connection : Alligator Clips Length : 193.00000000mm Width : 89.00000000mm Height : 42.00000000mm Weight : 560.00000000g Shape : Lithium Rechargeable Battery Cell/Pack Type : Lithium Ion Voltage : 3.70000000V Capacity : 12000.00000000mAh USB rechargeable : true USB Charge Connection : USB Type C USB Voltage Output Range : 5.00000000V, 5.00000000V USB Voltage Outputs : 5.00000000 USB Current Output : 2.00000000A, 2.10000000A Has USB power output? : true DG UN Number : UN3481 DG Ship Name : 3481 - Lithium Ion Batteries Packed In Equipment DG Class : 9.00000000 DG Pack Group : II - Medium Danger DG Hazardous Chemical Code : 4W Battery Watt Hour Rating (Required for Lithium Batteries) : 44.40000000Wh Dangerous in Road Freight : false Dangerous in Air Freight : true Output Power Fast Charge : 10.00000000W Max Charging Disctance : 10.00000000mm