LOKITHOR Portable Jump Starter for up to 8.0L Gas & 6.0L Diesel — 2000A Peak, Power Bank & LED Light

The LOKITHOR J400 is a compact, high-output portable jump starter that delivers up to 2000A peak current to start vehicles with up to 8.0L gasoline or 6.0L diesel engines.

Designed for drivers, DIYers, and roadside rescuers, the J400 combines powerful lithium cells, an intuitive large display, and built-in safety features to revive dead batteries quickly and safely. It also functions as a power bank and flashlight so you have multiple emergency tools in one rugged package. Below you’ll find focused answers to common buyer questions, plus concrete details to help you decide if the J400 fits your needs.

How quickly will the J400 start a dead car battery?

The J400 supplies up to 2000A peak current and uses high-rate 80C lithium cells to provide fast energy delivery, enabling immediate starts for most cars and light trucks. Its ConnectMax Technology checks the connection and automatically adjusts output for reliable ignition attempts.

• Up to 2000A peak current for instant cranking.
• Supports up to 8.0L gasoline and 6.0L diesel engines.
• Can deliver roughly 25 starts per full charge under typical conditions.
• Intelligent detection reduces failed start attempts.

What safety features protect me and my vehicle?

The J400 includes an intelligent battery management system (BMS) and smart clamps that combine to prevent common jump-start hazards. Multiple protections—such as reverse polarity, short-circuit, and overcurrent safeguards—help protect both you and your vehicle’s electronics.

• Reverse polarity protection to avoid damaging connections.
• Short-circuit and overcurrent protection for safer operation.
• BMS monitors temperature, voltage, and current in real time.
• Smart clamps confirm correct hookup before enabling output.

What extra functions does the J400 offer beyond jump-starting?

Beyond starting vehicles, the J400 doubles as a multi-port power bank and emergency light source. It includes fast USB charging ports for phones and electronics plus a 300-lumen LED flashlight with SOS mode to improve visibility during roadside repairs or nighttime emergencies.

• Fast USB outputs for smartphones, tablets, and accessories.
• 300-lumen LED with steady, strobe, and SOS modes.
• Large 5.75-inch display shows battery status and connection alerts.
• Compact form factor keeps it easy to store in trunks or garages.

How durable and reliable is the J400 for long-term use?

The J400 is built with high-rate 80C lithium cells chosen for strong, rapid energy release and consistent performance over many cycles. LOKITHOR backs the unit with a 12-month warranty and supplies everything needed to use it immediately out of the box.

• High-rate lithium cells for repeated, powerful starts.
• Robust housing suitable for everyday roadside use.
• 12-month manufacturer warranty and customer support.
• Comes complete with clamps, cables, and user documentation.

Who is this product for? The LOKITHOR J400 is ideal for car owners, fleet drivers, roadside technicians, and anyone who wants a reliable emergency power solution. It suits drivers of larger gasoline and diesel engines who need a compact yet powerful starter, plus users seeking a multi-function device that charges electronics and provides strong lighting during nighttime incidents. If you want quick, safer jump starts, visible status feedback, and added emergency features in one portable unit, the J400 is designed to meet those needs.