Lokithor J402 PRO 3500A Jump Start Kit

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SKU: J402 PRO

Price: $199.99

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Description

The J402 PRO from Lokithor is a compact jump pack that when fully charged can start 60 engines before requiring a recharge. With super fast 100W bidirectional charging, the battery can recharge as quickly as five minutes and is fully charged in less than an hour. Thanks to its low discharge rate, the pack can aso sit on a standby charge for up to 30 months. Scroll for more details, features and applications.

Product Highlights

Next-Level Jump Starting Power: Delivering an impressive 3,500 peak amps, the J402 PRO easily starts 12V gasoline engines up to 9.0L and diesel engines up to 7.0L. With the capacity to handle 60 starts on a single full charge, it can repower completely dead batteries on large vehicles with ease, including:

Pickup Trucks

Delivery Trucks

Utility Tractors

Offshore Boats

Shuttle Bus

Motorhome

UTV

Super-Fast 100W Bidirectional Charging:

Backed by advanced 100W bidirectional fast-charging technology, the J402 PRO can pull enough power for an emergency start in just 5 minutes. Reaching a complete charge in less than an hour, this bidirectional flow also allows you to rapidly charge up the jump pack itself, or use that same high-speed output to fast-charge your personal electronics when you're on the go.

30-Month Standby Charge:

Engineered for ultimate readiness, the high-efficiency lithium polymer battery features an exceptionally low discharge rate, allowing the unit to sit on a standby charge for up to 30 months so it is always ready for emergencies.

BMS Power Management and Safety:

The advanaced Battery Management System (BMS) monitors performance in real time. Built-in protections guard against overheating, short circuits, overcurrent, reverse connections, overcharging and clamp detachment, ensuring safe operation for both the user and the vehicle's electrical system.

Intuitive 3" Digital Display:

A large, integrated 3" digital interface provides real-time diagnostic feedback, battery status and operational alerts at a single glance.

IP65-Rated Weatherproof Construction:

Engineered to survive harsh shop and field environments, the unit features a shockproof outer shell with a certified IP65 rating for superior dust and water resistance.

High-Intensity 3-Mode Flashlight:

An integrated 300-lumen LED flashlight features three lighting modes to illuminate engine bays, facilitate dark roadside hookups or signal for help.

Portable Power Bank Functionality:

The end panel features a convenient USB port to charge smartphones, tablets and other critical electronic devices on the go.

Specifications

Voltage Compatibility: 12 Volt
Amperage: 1,000 Amps
Peak Amperage: 3,000 Amps
Engine Rating: Up to 9.0L Gas / 7.0L Diesel
Operating Temperature -4° F to 122° F
Battery Type: 4S Lithium Polymer (LiPo)
Fast Charge Time: 5 Minutes (for single start capability)
Full Charge Time: 54 Minutes
Standby Power Retention: Up to 30 Months
Ingress Protection Rating: IP65 (Dust and Water Resistant)
Flashlight Output: 300 Lumens (3 Modes)
Weight: 3.86 lbs.
Warranty: 1-Year Limited Warranty

Kit Components

Applications

Automotive and Shop:
Perfect for dealerships, diagnostic shops and garage bays to quickly jump-start consumer cars, heavy SUVs and large-engine work trucks.

Towing and Emergency:
An essential tool for roadside assistance operators, tow trucks and emergency response vehicles that demand rapid turnaround times and reliable cold-cranking performance.

Marine:
Ideal for boats, personal watercraft and yachts with 12V systems, offering peace of mind on the water thanks to its IP65 water-resistant casing.

Agricultural:
Provides dependable starting power for tractors, utility vehicles, combines and heavy farm equipment that sit idle through the off-season.

Fleet Operations:
Keeps commercial delivery vans, service trucks and transit fleets moving with minimal downtime.

FAQ

What size engines can the Lokithor J402 PRO jump-start?

The Lokithor J402 PRO is a heavy-duty powerhouse delivering 3,500 peak amps. It is designed to jump-start 12V vehicles with gasoline engines up to 9.0L and diesel engines up to 7.0L. This makes it ideal for everything from passenger cars and SUVs to commercial delivery trucks, motorhomes and utility tractors.

How long does it take to charge the J402 PRO?

Thanks to its 100W bidirectional fast-charging technology, the J402 PRO can reach a full charge in just 54 minutes. If you are in a hurry, a quick 5-minute charge provides enough power for a single emergency start, ensuring you aren't stranded for long.

How long will the battery hold a charge while in storage?

The J402 PRO is engineered for ultimate readiness with an exceptionally low discharge rate. On a full charge, the high-efficiency lithium polymer battery can maintain a standby charge for up to 30 months. This long-term power retention ensures the device is ready for emergencies even after sitting in your trunk or shop for an extended period.

Is the Lokithor J402 PRO waterproof and durable for outdoor use?

Yes, the unit features an IP65-rated weatherproof construction, meaning it is highly resistant to dust and water. Combined with its shockproof outer shell, the J402 PRO is built to survive harsh environments, including rain-soaked roadsides, dusty farm fields and marine applications on boats.

Can the J402 PRO charge my other electronic devices?

Absolutely. Beyond its jump-starting capabilities, the J402 PRO functions as a portable power bank. It features a USB port and utilizes its 100W high-speed output to fast-charge smartphones, tablets and other critical electronic devices when you're on the go.

Shipping & Returns

This product is classified as hazardous material. A $55.00 hazardous shipping surcharge will be applied at checkout. Please note: expedited shipping options are not available for hazardous items.

Expedited orders must be placed by 12 p.m. CST. Items under 110 lbs ship via standard parcel (UPS Ground). Items 110–150 lbs may ship via ground or truck freight depending on size and destination.
Larger or heavier items ship via truck freight, which may require additional delivery time.

Please inspect all shipments within 10 days of delivery. Return requests must be submitted within 45 days.

For full details, view our Shipping & Returns Policy.

Shipping & returns policy

Product Information

Item #	MFG #
J402 PRO	J402 PRO