LOKITHOR J401 Portable Car Jump Starter 2500A Peak, 12,000mAh Power Bank (Black) — 60W USB‑C Fast Charge, BOOST Mode

The LOKITHOR J401 is a compact, high-current portable jump starter and 60W power bank designed to start gasoline engines up to 8.5L and diesel engines up to 6.5L while also charging devices and lighting emergencies.

The J401 combines a 2500A peak starting current with a 12,000mAh battery and a 60W USB-C output so you can revive a flat vehicle battery, charge phones and tablets, and illuminate roadside problems. Built with an advanced battery management system, fast-charge input, rugged enclosure and multiple safety protections, it is intended as a multipurpose roadside power tool for drivers, boaters, and outdoor users.

How powerful is the J401 for starting vehicles?

The J401 delivers a peak starting current of 2500A and is rated to start engines up to 8.5L gasoline or 6.5L diesel. When fully charged it can provide up to approximately 50 starts under typical conditions, while a BOOST mode helps detect and recover deeply discharged batteries.

• 2500A peak starting current for high-demand starts
• Suitable for cars, SUVs, trucks, boats, RVs, ATVs, tractors and mowers
• BOOST mode automatically detects voltage on exhausted batteries
• Estimated ~50 starts per full charge (actual depends on conditions)

What safety features protect me and my vehicle?

The unit includes a comprehensive Battery Management System and a long list of built-in protections to reduce risk during use. These guard against sparks, incorrect connections, over-current events and extreme temperatures while providing clear alerts for abnormal battery conditions.

• Spark-proof and reverse-polarity protection to prevent damage
• Over-charge, over-current, over-voltage and short-circuit protection
• Low-temperature and high-temperature safeguards for tougher environments
• Real-time voltage detection and audible/visual alarms for anomalies

How fast does the J401 recharge and what else can it power?

The J401 accepts up to 60W DC input for quick recharging and supports PD protocol charging for fast replenishment; a full charge can take as little as 45 minutes with a compatible charger. With a 12,000mAh internal pack and a 60W USB-C output, it also functions as a mobile power bank to charge phones, tablets, earbuds and other USB-C devices.

• 60W two-way fast charging for fast input and device output
• USB-C PD output to charge laptops, phones and tablets efficiently
• Cigarette-lighter adapter option lets you charge while driving
• 3 LED modes — flashlight, strobe and SOS — for emergency lighting

Is the J401 built to last outdoors and what is the warranty?

The J401 is purpose-built for real-world conditions with an IP65 water-resistant enclosure, flame-retardant materials and a rugged clamp/cable assembly that withstands wide temperatures from -4°F to 140°F. LOKITHOR provides 18 months warranty support and a lifetime-style customer service commitment for replacement on qualifying issues.

• IP65-rated housing and 94V0 flame-retardant construction
• Durable jumper cables and clamps designed for repeated use
• 36 months standby capability due to low self-discharge cells
• Included accessories: jumper cables, USB-C cable, USB-A cable, manual

Who is this for: The LOKITHOR J401 is aimed at drivers, boat owners, RV and ATV users, landscapers and anyone who needs a compact, dependable jump starter that doubles as a high-power USB-C bank and emergency light. If you want fast recharge, broad vehicle compatibility up to large gasoline and diesel engines, and layered safety protections in a portable, weather-resistant package, the J401 is designed to meet those needs.