GOOLOO - GP4000 4000A Jump Starter for All Gas/10.0L Diesel, 12V SuperSafe Booster with USB-C Fast Charge Power Bank

The GBX45 Boost X is a new class of portable lithium jump starters—engineered for extreme performance and rated at 1,250 amps to start gas engines up to 6.5 liters and diesel engines up to 4.0 liters. Featuring our upgraded UltraSafe 2.0 technology, it offers spark-proof connections and reverse polarity protection, now with enhanced thermal efficiency and power management for even greater safety and battery life. Designed with a high-voltage output system, the GBX45 includes an integrated 60-second timer to conserve energy—delivering up to 6 jump starts per charge with maximum power on every start. Even if completely depleted, it can gain enough power for a jump start in just 5 minutes or fully recharge in only 48 minutes via USB-C Power Delivery. A 60-watt USB-C port provides both input and output, turning Boost X into a high-performance power bank for fast charging phones, tablets, laptops, and other USB-C devices. A precision-engineered 100-lumen LED flashlight features seven modes, including SOS and strobe, to light up dark workspaces or help in roadside emergencies. The GBX45 jump starter comes complete with heavy-duty jumper clamps, a USB-C charging cable, and a microfiber storage bag, all backed by a 1-year limited warranty and proudly engineered in the USA. Whether you’re looking for a car jump starter, battery jump box, jumper pack, power pack jump starter, or a reliable jump starter battery pack to keep in your glovebox, the GBX45 delivers unmatched performance, trusted durability, and peace of mind—on the road, off the grid, or wherever your next adventure takes you.

Be prepared for unexpected roadside situations with this portable emergency power solution. Designed for daily driving, road trips and outdoor adventures, it combines jump starting, tire inflation and portable charging in one compact device. Whether you need help with a weak battery, low tire pressure or nighttime visibility, this all-in-one kit provides convenient support when you need it most. Its portable design makes it easy to store in your trunk, garage or RV, helping you stay prepared for unexpected moments on the road.

This WOLFBOX JS24 car jump starter provides up to 4000A peak current and 24000mAh high capacity. It can safely start gas and diesel engines. Works on all (12 volt) cars, trucks, boats and large vehicles, meanwhile it is very portable. The JS24 battery jump starter works with a smart jumper clip to provide 10 safety protections to ensure safe use. The JS24 car jump starter power supply contains an LED screen that clearly displays all status indicators of the portable car jump starter power supply. You can easily identify the current status of your emergency power source and provide seamless access to all functions. This JS24 car jumper is also equipped with 1*65W Type-C input/output port and 1*QC 3.0 USB-A port, which can save 50 when charging your mobile phone, tablet, Kindle or digital camera 50% time. Tips：A 65W charging plug needs to be purchased separately.