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Lokithor J403HD LiPO 12V 10000A Heavy-Duty Jump Starter with ConnectMax

Manufacturer

Lokithor

<h3>About Lokithor</h3><p><strong>Lokithor</strong> is a global manufacturer of jump starters, battery chargers, and starting batteries, providing OEM &amp; ODM solutions for car and power equipment brands. Founded in 2020, the company has quickly earned a reputation for blending cutting-edge technology with practical, driver-focused design. Lokithor is a global professional manufacturer of multi-functional automotive emergency tools, focused on integrating artificial intelligence technology into the products they invent, design, and manufacture.</p><h3>Portable Power Built for the Real World</h3><p>At the heart of the Lokithor lineup are its <a href="/18260-lokithor-vehicle-jump-starter-21258">vehicle jump starters</a> — a range of compact, high-output units engineered to handle everything from daily drivers to heavy-duty diesel rigs. Lokithor jump starters combine powerful jump-starting capability with versatile functionality for automotive professionals and vehicle owners, with models ranging from compact portable units to heavy-duty systems capable of starting commercial vehicles, construction equipment, and agricultural machinery.</p><p>A standout feature across many Lokithor models is ConnectMax&trade; Technology — an intelligent impedance detection system that monitors clamp-to-battery contact in real-time, with indicator lights showing connection quality to maximize starting efficiency. The lineup also makes extensive use of LiFePO&sub4; and LiPo battery chemistry, offering lighter weight compared to traditional lead-acid units, with enhanced safety and longer cycle life.</p><p>Multi-function versatility is another defining trait. Lokithor jump starters cover features including air compressors, trickle chargers, car battery testers, pressure washers, fast charging, and cold-weather jump starting. For example, the J402 delivers an impressive 3,000-amp super start current and is capable of up to 60 jump-starts on a single charge, while its versatile compatibility makes it suitable for a wide range of 12V vehicles including cars, motorcycles, boats, RVs, ATVs, SUVs, vans, tractors, and mowers.</p><h3>Smart Battery Charging Solutions</h3><p>Beyond jump starting, Lokithor offers a range of <a href="/14307-battery-charger-lokithor-18260">battery chargers</a> designed for home garage and on-the-road use. The smart battery charger is compatible with 6V and 12V lead-acid and LiFePO4 batteries, providing four different charging modes for home and car use — allowing you to safely charge batteries wherever and whenever needed. Many of Lokithor&apos;s hybrid jump starter models, such as the flagship JTC4250, integrate smart charging directly into the unit, making a standalone charger and a jump starter one and the same device.</p><h3>Safety You Can Count On</h3><p>Lokithor jump starters typically incorporate multiple built-in safety systems, including overvoltage protection, undervoltage protection, overcurrent protection, high-temperature and low-temperature protection, short-circuit protection, and reverse-connection/spark-proof technology. Units are engineered to bear extreme environments from -4&deg;F to 140&deg;F, ensuring reliable operation across a wide range of conditions.</p><p>Whether you&apos;re a daily commuter who wants peace of mind in the glove box or a fleet manager outfitting dozens of vehicles, Lokithor&apos;s growing catalog of portable power products is worth a close look.</p>

Part Number

J403HD
09/17/2036 12:06 AM
Sale Price

$475.60

3 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Lokithor J403HD is a professional-grade, heavy-duty portable jump starter built for serious 12V starting demands. Powered by a 236.8Wh LiPO battery, it delivers an industry-leading 10,000 peak amps, making it capable of starting gasoline engines up to 16.0 liters and diesel engines up to 16.0 liters in seconds — even in extreme temperatures ranging from -4°F to 140°F.

Designed for the most demanding environments, the J403HD is ideal for semi-trucks, coaches, buses, motorhomes, and heavy industrial equipment used in mining, agriculture, construction, and vocational applications.

ConnectMax Technology:

The J403HD features Lokithor's proprietary ConnectMax system, which automatically detects the connection impedance between the clamps and the battery terminals. LED indicators provide instant feedback — green for a good connection, yellow for a poor connection — ensuring optimal contact and maximum starting efficiency every time.

Key Features:

  • 10,000A peak current — starts 12V gasoline engines up to 16.0L and diesel engines up to 16.0L
  • 236.8Wh LiPO battery — lightweight at approximately 9.15 lbs, far lighter than lead-acid alternatives
  • ConnectMax Technology — automatic clamp connection detection with LED status indicators
  • 10-Layer Safety Protection — spark-proof, reverse-polarity, over-charge, over-current, short-circuit, reverse-charge, low-temp, high-temp, over-voltage, and over-load protection
  • 100W two-way fast charging — USB-C input/output up to 100W; fully charges in approximately 2–3 hours
  • Multi-port power bank — USB-A (QC 18W) and USB-C (100W) outputs for charging devices
  • DC output — 12.8V–16.8V / 10A for powering accessories
  • 400-lumen LED flashlight — built-in for roadside emergencies
  • Service life — rated for over 1,000 charge cycles with proper maintenance
  • Operating temperature range — -4°F to 140°F (-20°C to 60°C)

In the Box:

  • J403HD Jump Starter (x1)
  • Jumper cables (x1)
  • 12V car cigarette lighter to DC-5521 charging cable (x1)
  • USB-C to USB-C cable (x1)
  • USB-A to USB-C cable (x1)
  • Accessories bag (x1)
  • User manual (x1)

The Lokithor J403HD combines massive starting power with intelligent safety features and versatile charging capability, making it an essential tool for fleet operators, truck drivers, and anyone who demands reliability when it counts most.

Fantastic service, and website was very user friendly with insuring correct fitment.

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