GOOLOO GT4000S 74Wh startbooster 4000A toppström

The GOOLOO GT4000S is a powerful and reliable jump starter designed for vehicles with gas engines up to 10.0L and diesel engines up to 8.0L. With a peak starting current of 4000A and a high-rate lithium-ion battery capacity of 26800mAh (74Wh), it delivers exceptional starting power even in extreme temperatures from -20°C to 60°C. The built-in smart clamp system provides comprehensive safety protections including reverse polarity, over-current, over-charge, over-temperature, and short-circuit protection.

Advantages

Compact yet powerful, the GT4000S can start a vehicle up to 60 times on a single charge. It features multiple output ports including USB-A (5V/2.4A), USB-A QC3.0 (5V/3A, 9V/2A, 12V/1.5A), USB-C PD (5V/3A), and DC output (15V/10A), making it a versatile power bank for charging smartphones, tablets, and other devices. The LCD screen displays battery status and operating information, while the LED flashlight with normal, strobe, and SOS modes adds safety and convenience.

Suitable for

• Car owners with gasoline engines up to 10.0L or diesel engines up to 8.0L
• Emergency roadside assistance kits
• Outdoor enthusiasts and campers
• Fleet operators and professional drivers

Key specifications

• Peak Starting Current: 4000A
• Battery Capacity: 26800mAh (74Wh)
• Engine Compatibility: Gas up to 10.0L, Diesel up to 8.0L
• Battery Type: High-rate Lithium-ion
• USB-A Output 1: 5V/2.4A
• USB-A Output 2 (QC3.0): 5V/3A, 9V/2A, 12V/1.5A
• USB-C Input/Output (PD): 5V/3A (15W)
• DC Output: 15V/10A
• Operating Temperature: -20°C to 60°C (-4°F to 140°F)
• Safety Protections: Smart Clamp System (Reverse Polarity, Over-Current, Over-Charge, Over-Temperature, Short-Circuit)
• LED Flashlight Modes: Normal, Strobe, SOS
• Display Type: LCD Screen
• Full Charging Time: Approx. 3-4 hours (via 5V/3A USB-C)
• Start Attempts per Charge: Up to 60 times
• Cycle Life: 1000+ cycles
• Certifications: CE, FCC, RoHS, UL (battery)
• Housing Material: ABS + PC

Recommendations

For optimal performance, fully charge the jump starter before first use and recharge after each use. Store in a cool, dry place. Always follow the safety instructions provided in the user manual.