Built-in protection features: over current protection; short circuit protection; overload protection; over-voltage protection; over-charge protection. Jump Starts Gasoline engines up to 6.8 Litres (8 Cylinders), Diesel engines up to 2.5 Litres (4 Cylinders) and other 12-volt ignition engines such as Watercraft or Motorcycles. Anti-Shock, Anti-Spark, Highly reliable, Extremely safe, Multi-functional, Can jumpstart most standard size cars, Charges most smartphones & tablets using USB port. It is portable & lightweight. Features an emergency LED light.