Powerful Boost Jump Starter - This YJS20 car battery booster pack can easily start most 12V vehicles(up to 9.0L Gas and 7.0L diesel engines) in seconds - up to 50 times on a single charge - works even in extreme climate -4~140℉. Even if the battery voltage is too low or dead, pressing the “BOOST” button will force the car to restart..DSLI IV Intelligent Control Tech - Compared with the previous technology, DSLI IV reassembling of the battery structure and microcomputer control program, the voltage is increased by 30% up to 14.8V, the peak current of the starting current reaches 2160A thus reaching 1 second Start the car, the powerful intelligent temperature control technology reduces the starting temperature; helps you start faster, stronger and safer..More Than a Jump Box - It’s also a portable power bank for charging devices with REAL 59.2Wh(16000mAh) battery capacity, great for a quick emergency charge of your phone, tablet, camera, headphone, GPS or other mobile devices through dual USB, Type-C and DC output ports. The built-in LED light with 3 modes: Flashlight, Strobe, and SOS..All-new Design - The new YJS series jump boxes equipped with rugged ABS casing is fire-proof, dust-proof and shock-proof for more sturdy and durable use. It comes in handy with the included EVA storage bag for camping or traveling, no waiting around, no leaving you stranded..Product Set - YESPER YJS20 Car Battery Jump Starter, Heavy-Duty Jumper Clamps, USB to Type C Cable, Cigarette Lighter Adapter, Carrying case, User Manual. And 18-month worry-free warranty & lifetime technical support. Feel free to contact us with any questions.