A must have for every car! Make sure you and your loved ones can get home when stranded. With 500A peak start currency and the advanced intelligent jumper clamps, this jump starter can safely jump start 3L Gas or 2.5L Diesel engine up to 20 times on a single charge. Powerful LED Light It has 3 modes LED light (high, strobe and SOS), It’s an emergency life saver when you go camping, picnic, outdoor adventure or investigation. Faster & Smarter Battery Charger It equipped with a 2.4A USB Output and a smart USB port, with 12000mAh capacity, you can charge your cellphones, tablets, kindles etc. at the fastest speed. You can also use it to charge your laptop with 8 in 1 laptop adapters (included in the package).Compass & LCD Screen The compass on the surface helps you find your way home when get lost in the wild. The LCD screen shows exactly the remaining power and output voltage, which helps you make better use of the power. Convenient Package & Ultra Compact The unit is supplied in a fabulous quality semi-hard case featured also a yellow wrist carry strap, which is small enough to store in your glovebox and light enough to pack in your bag. ATTENTION:1. Don’t jump start any engine that exceed the maximum displacement the unit can bear, or it will cause serous damages to the unit. 2. Your jump starter will perform best when its battery is fully charged. If less than 25% charged, it may not be able to start your engine. 3. Don’t connect the positive and negative polarity together when it’s power on. 3. Don’t connect the positive and negative polarity together when it’s power on. Don’t crank the engine for more than 4 seconds. Allow the jump starter to cool down for at least 30 seconds after each jump-start. 4. Read the instruction carefully before using.