Wolfbox jump starter with clamps, cable, and carrying case on a white background

WOLFBOX JS24 4000A Jump Starter

£99.99
£99.99
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Wolfbox jump starter with clamps, cable, and carrying case on a white background
  • Wolfbox jump starter with clamps, cable, and carrying case on a white background
  • Wolfbox 4000A jump starter with text 'Start your dead vehicles in seconds' on a car battery background.
  • WOLFBOX jump starter with smartphone and plug on a wooden surface.
  • WOLFBOX 4000A power monitor with digital display on a dark background showing intelligent screen display notifications
  • WOLFBOX LED flashlight being held with features highlighted on a dark background
  • Orange pickup truck on a road with a graphic showing engine size range and vehicle types.
  • Wolfbox battery charger with 10-point safety system on a dark background
  • Instructions for using a jump starter with text and images on a black background
  • Collage of a car emergency kit being used in various scenarios with text 'Easy to carry, where to use'.
  • Wolfbox JS24 jump starter with power display on a car engine background
  • Wolfbox what's in the box jump starter kit with components and packaging on a dark background
  • Wolfbox jump starter with clamps, cable, and carrying case on a white background
  • Wolfbox 4000A jump starter with text 'Start your dead vehicles in seconds' on a car battery background.
  • WOLFBOX jump starter with smartphone and plug on a wooden surface.
  • WOLFBOX 4000A power monitor with digital display on a dark background showing intelligent screen display notifications
  • WOLFBOX LED flashlight being held with features highlighted on a dark background
  • Orange pickup truck on a road with a graphic showing engine size range and vehicle types.
  • Wolfbox battery charger with 10-point safety system on a dark background
  • Instructions for using a jump starter with text and images on a black background
  • Collage of a car emergency kit being used in various scenarios with text 'Easy to carry, where to use'.
  • Wolfbox JS24 jump starter with power display on a car engine background
  • Wolfbox what's in the box jump starter kit with components and packaging on a dark background
WOLFBOX JS24 4000A Jump Starter

WOLFBOX JS24 4000A Jump Starter

£99.99
£99.99

The WOLFBOX 4000A is a compact, high‑output jump starter engineered for drivers who need immediate, reliable power in emergency situations. Its 24000mAh internal battery delivers strong starting performance for petrol engines up to 10L and diesel engines up to 8L, making it suitable for cars, vans, SUVs, and light trucks. With advanced smart‑protection circuitry, USB‑C fast charging, and a high‑intensity LED torch, the WOLFBOX 4000A provides dependable support for roadside emergencies, winter starts, and long‑distance travel. 

KEY FEATURES • 4000A peak current for powerful jump starts • Supports up to 10L petrol / 8L diesel engines • 24000mAh internal battery • Smart protection: reverse polarity, spark‑proof, over‑current, over‑voltage, short‑circuit • USB‑C fast charging + USB‑A output • High‑intensity LED torch with SOS and strobe modes • Rugged, compact design suitable for glovebox storage • Reliable performance in low‑temperature conditions

TECHNICAL SPECIFICATIONS • Peak Current: 4000A • Battery Capacity: 24000mAh • Engine Compatibility: Up to 10L petrol / 8L diesel • Outputs: USB‑C, USB‑A fast charge • Input: USB‑C • LED Modes: Standard / Strobe / SOS • Safety Systems: Reverse polarity, spark‑proof, overload, overcharge, short‑circuit • Operating Temperature: –20°C to 60°C • Housing: Rugged, impact‑resistant casing

INCLUDED • WOLFBOX 4000A Jump Starter • Smart clamps • USB‑C cable • Carry case • User guide

WHY VARELO™ RECOMMENDS IT The WOLFBOX 4000A delivers strong, reliable starting power in a compact format that fits easily in any vehicle. Its safety systems, fast‑charging capability, and high engine compatibility make it a practical tool for daily drivers, tradespeople, and long‑distance travellers. It removes downtime, eliminates reliance on breakdown services, and provides immediate power when it matters most.

IDEAL FOR • Daily drivers • Tradespeople • Rural or long‑distance travel • Emergency roadside kits • Winter preparation • Multi‑vehicle households

Tools & Everyday Carry
WOLFBOX JS24 4000A jump starter video showing powerful 4000A peak current, fast engine starts, smart safety protection, 24000mAh power bank capability, and an ultra‑bright LED torch for reliable roadside support in all weather conditions.