CTEK RB 4000 Lithium Jump Starter 12V 4000A

CTEK RB 4000 — Portable Jump Starter, Power Bank & Torch (12V)

Roadside backup that fits in a pocket. The CTEK RB 4000 is a compact lithium jump starter that delivers a 4000A peak current — enough to jump-start most 12V vehicles, and up to 45 starts on a single charge. For a bike, car, van or boat that’s been sitting, it’s the “get me going again” tool to keep under the seat or in the boot.

It’s built to be used safely by anyone: spark-free technology and reverse-polarity protection mean no dangerous sparks or wrong-terminal mistakes. And it earns its place beyond emergencies — it doubles as a high-capacity USB power bank (USB-A QC3.0 and USB-C PD 30W) to charge phones and devices, and has a built-in LED torch with three light modes. IP65-rated and supplied in a zip storage case, it’s made for adventure and real-world use.

Key features:

• 4000A peak current — jump-starts most 12V vehicles, up to 45 starts per charge
• Works with all 12V lead-acid types — AGM, EFB, WET, GEL, Ca/Ca
• Spark-free + reverse-polarity protection for safe, foolproof use
• Doubles as a USB power bank — USB-A QC3.0 and USB-C PD 30W
• Built-in LED torch with 3 light modes
• Compact and IP65-rated · includes zip storage case

24,000 mAh lithium-ion jump starter, 12 V, 4000 A peak.

Genuine CTEK product.