START DEAD BATTERIES--Driven by a 3000A peak current, the battery jump starter battery pack can easily restart 12V dead vehicles up to 7.0 gas/5.5L diesel engines in seconds even at -4℉~140. Support more than 1000+ recharge cycles and easier than asking help from others or roadside service. VISIBLE LED DISPLAY - Compared with traditional portable jump starters with indicators only, ACEZUK visible portable car jump starter clearly displays all the information you need. When you have drained batteries on a road trip, you don't have to guess by the indicators anxiously or wait hours for AAA/someone for help on desolated interstates. Just follow the instructive steps on the LED display to save yourself clearer and easier! PORTABLE POWER BANK - ACEZUK Lithium jump starter is integrated with 3 functions. It's a car jump starter, portable power bank, compass, LED emergency torch with 3 modes (flashlight, fast flashing, slow flashing, ).It is equipped with 2 ports. ADVANCED PROTECTION TECHNOLOGY - The portable Lithium jump starter car battery cables are constructed with all-metal clamps to prevent breakage caused by long-term use. And it also has 8 protections, including reverse polarity, reverse connection, over current, over voltage, overload, over-charge, over-discharge, short circuit. All the protections make yourself and your loved ones safe. 【WHAT YOU GET & WARRANTY】ACEZUK jump pack (1* portable jump starter, 1* smart jumper cables, 1* USB-C charging cable, 1* user manual. We offer 2-YEAR FREE Warranty, Lifetime Technical Support, and 7/24 Customer Service.