The GOOLOO GT4000 Car Jump Starter is a powerful and portable jump pack box designed for both gas and diesel engines. With a high capacity of 26800mAh and peak amps of 4000Amp, it can start up to 12.0L gas or 10.0L diesel engines quickly and efficiently. The lithium polymer battery cell composition ensures a long-lasting charge, while the smart jumper cable, AC adapter, and USB to Type-C cable provide convenience and flexibility. This jump starter also features a safety switch, LED light, and trickle charging capability for added safety and utility. With its compact size and durable design, the GOOLOO GT4000 is a reliable and essential tool for any vehicle owner.