GOOLOO GT4000S – High-Power 4000A Jump Starter with 100W Fast Charging and LED Display for Large Engines

Why This Product Stands Out

Boasting an impressive 4.6-star rating, the GOOLOO GT4000S is built for drivers of larger vehicles who need serious starting power. Its 100W Type-C fast charging recharges the unit in just 1.2 hours — a 5-minute charge is enough for one car start — and the 3.2-inch LED screen shows battery status, output, and connection guidance at a glance.

Key Features

• 4000 Peak Amps — Starts 12V engines up to 12L gas and 10L diesel, including trucks, RVs, SUVs, tractors, boats, and heavy machinery
• 100W Two-Way Fast Charging — Full recharge in 1.2 hours; a 5-minute top-up provides a single start; also charges laptops and tablets at full speed via Type-C
• 3.2-Inch LED Display — Shows real-time battery level, voltage output, and connection status for informed operation
• 10 Safety Protections — Engineered with spark-proof circuits, reverse polarity protection, over-temperature cut-off, and more for total peace of mind
• 24-Month Standby Life — Holds charge for up to two years without maintenance — always ready when you need it
• Triple USB Output — Three USB ports including fast-charging Type-C for smartphones, tablets, and other 5V devices
• 400-Lumen LED Flashlight — Spotlight, strobe, and SOS modes provide excellent visibility during nighttime emergencies
• 15V/10A DC Port — Additional port for powering 12V accessories and car appliances on the go

Design and Build Quality

The GT4000S features a professional-grade housing with a bright 3.2-inch display panel that eliminates guesswork. Heavy-duty clamps deliver consistent power transfer even in cold weather, while the included storage bag keeps everything organized. The unit’s 24-month standby capability means you can stash it in your truck and forget about it until you need it.

Who It’s For

Truck and RV owners, farmers with diesel equipment, off-road enthusiasts, and anyone who drives a large vehicle that requires substantial starting power. The 4000A output also handles motorcycles, ATVs, boats, and standard passenger cars with ease.

What’s Included

GT4000S jump starter unit, heavy-duty battery clamps, 100W car charger, USB-C cable, C-to-C cable, cigarette lighter adapter, premium storage bag, and user manual.