CTEK RB 4000 Booster

Jump-start dead batteries – with instant starting power. The RB 4000 booster delivers enhanced power to jump-start dead 12V vehicle batteries. With up to 45 starts on a single charge, it’s perfect for powering your adventures – whatever your vehicle. Compact, lightweight and with advanced safety features, it also charges your electronic devices through its USB-A and USB-C ports, and has a built-in flashlight. Inspired by Swedish charging experts at CTEK, the RB 4000 is ready when it matters most – so you never miss a moment.

Instant starting power: Jump-start up to 45 vehicles on a single charge.

Safety built-in: 10 built-in safety features, including reverse polarity protection and spark-proof technology.

Flexible charging: USB-A and USB-C ports to power most devices on the go – from tablets to smartphones.

LED flashlight: Ultra-bright light with multiple modes (SOS, strobe, and standard).

Compact design: Easy to store with a minimum of 8 months between charges.