• Powerful 4000A Jump Starter – instantly revives dead batteries (even at ultra-low voltage) with a press of the "BOOST" button — works on all gasoline or diesel engines up to 10.0L (cars, trucks, RVs, boats, etc.).
• Large Capacity + 3-Port Charger – two USB (1 fast charge) + Type-C (5V/3A) to power phones, tablets, GPS — compact yet rugged for on-the-go use.
• 10-in-1 Protection – spark-proof, all-metal clamps, and drop-proof design (hardened plastic + rubber corners) for worry-free operation.
• Extreme Weather Protection – reliable starting from -20°C to 60°C (-4°F to 140°F) — over 60 jumps on a single charge.
• Emergency Flashlight – built-in illumination for nighttime breakdowns.
• Universal Compatibility – works with 12V vehicles: motorcycles, ATVs, tractors, yachts, etc.!

GOOLOO GP4000 Best Diesel Truck Jump Starter – the best 12-volt jump starter for diesel trucks (10L) and all gasoline engines | Emergency rescuer with over 60 jumps!

GOOLOO GP4000 Best Semi Truck Jump Starter – instantly revives dead batteries with 4000A peak power!

GOOLOO GP4000 Best Jump Starter – 4000A portable jump starter with reverse polarity protection for safe and worry-free charging!

GOOLOO GP4000 Best Handheld Starter – 4000A starter with ultra-bright LED light (flashlight/strobe/SOS) for emergency assistance!

Fast Charging: fully charges in about 5 hours with USB-C and charger (not included)!

Car Charger Ready: fully charges in about 5 hours via a 12V car outlet!

In the box: gooloo gp4000 powerful jump starter + smart booster cables, usb-c cable, eva case.