Jump starter Voltcraft VC-CJS77 600A 12V with USB socket and 2 outputs

Voltcraft VC-CJS77 600A 12V jump starter is a portable power unit designed to deliver a high starting current for gasoline and light diesel engines, while also providing charging options for mobile devices and small accessories. The compact device integrates a USB socket and two auxiliary output ports to support mobile phones, tablets and low-power equipment during roadside emergencies, maintenance work or short power interruptions.

Advantages

The jump starter supplies up to 600A peak current at 12V, enabling reliable engine starts for many passenger cars and light commercial vehicles. The built-in USB socket allows direct charging of smartphones and other USB-powered gadgets without needing an external power bank. Two additional output ports let you power or charge compatible accessories simultaneously. The unit is compact and portable, with user-friendly clamps and clear polarity indicators to simplify connection and reduce the risk of incorrect hookup.

Suitable for

• Starting passenger cars and light-duty diesel vehicles
• Emergency roadside battery boosts
• Charging smartphones, tablets and USB devices
• Powering low-consumption workshop tools and accessories

Key specifications

• Nominal voltage: 12 V
• Peak starting current: 600 A
• Integrated USB socket for charging mobile devices
• Two auxiliary output ports for accessories
• Compact, portable design suitable for vehicle storage

How to use

Before use, ensure the jump starter is charged according to the manufacturer’s instructions. Turn off the vehicle ignition and all electrical consumers. Connect the red clamp to the positive terminal of the discharged battery and the black clamp to a solid grounding point on the vehicle chassis or the negative terminal, following polarity indicators. Start the engine; if it does not start within a few attempts, wait and try again while observing safety precautions. After successful start, disconnect the clamps in reverse order and allow the jump starter to recharge if required. Use the USB socket or auxiliary outputs to charge devices while the unit is powered.

Usage recommendations

Use the jump starter in dry conditions and store it charged to ensure readiness. Avoid connecting the clamps in reverse polarity and do not attempt to start severely damaged batteries. For extended or repeated use, follow the manufacturer’s maintenance and charging cycles to preserve battery life and performance.