CTEK RB 4000, Portable Jump starter Booster, 4000A

Be prepared for any dead battery situation with the powerful CTEK RB 4000 Portable Booster , engineered to deliver instant starting power in a compact, professional-grade unit. Designed for reliability in demanding environments, this high-performance booster provides up to 4000A peak current , making it capable of jump-starting a wide range of 12V vehicles—from daily drivers to large SUVs, trucks, and off-road builds. On a single charge, it can deliver up to 45 jump starts , ensuring you’re never stranded when it matters most. Key Features Extreme Starting Power: 4000A peak current for reliable ignition of deeply discharged batteries Multi-Vehicle Compatibility: Works with all 12V lead-acid batteries (AGM, EFB, WET, GEL, Ca/Ca) Up to 45 Starts Per Charge: Ideal for workshops, fleets, and off-road use Advanced Safety System: Spark-proof design with reverse polarity protection for safe operation Power Bank Function: USB-A and USB-C outputs for charging phones, tablets, and devices Integrated LED Flashlight: Multiple lighting modes including SOS for emergencies Compact & Portable: Easy to store in your vehicle, garage, or recovery kit Performance & Design Built with Swedish engineering precision, the RB 4000 combines high-output performance with compact portability , making it a dependable solution for both everyday drivers and serious off-road users. Despite its power, it remains lightweight and easy to handle, with intuitive LED indicators for quick status checks. Its internal lithium-ion battery system ensures stable power delivery, while integrated protection systems guard against overheating, short circuits, and incorrect connections—giving you confidence even in emergency situations. Ideal For 4x4 and off-road vehicles Trucks, SUVs, and performance cars Workshops and fleet operators Overlanding, desert driving, and remote travel Daily drivers needing reliable backup power What’s Included Booster unit Smart jump cables (clamps) Storage bag USB-C charging cable User manual Why Choose RB 4000? Unlike traditional jumper cables, the RB 4000 provides independent starting power without needing another vehicle , making it a must-have recovery tool for modern drivers. Whether you're dealing with extreme heat, long vehicle downtime, or off-grid adventures, this unit ensures you're always ready to get moving again—quickly, safely, and without hassle.