The PMJS Series Lithium Jump Starter is a compact, high-output power solution designed for reliably starting vehicles and powering essential 12V equipment when batteries are dead or inaccessible.

With 2000 peak amps and 1000 cranking amps, the PMJS is capable of jump starting everything from cars and trucks to RVs, marine applications, and even V8 diesel engines. Beyond jump starting, it can power RV slide-outs, awnings, and 12V tongue jacks, making it a versatile tool for roadside emergencies, off-grid use, and travel.

Built around a lightweight 12V lithium battery, the PMJS delivers significantly more power in a smaller package than traditional lead-acid jump packs—without the bulk or frequent recharging. Weighing under 5 lbs, it’s easy to store in a vehicle, boat, or RV without sacrificing performance.

This unit is part of the PMJS Series Power Solutions lineup, engineered to deliver dependable performance, long battery life, and modern safety protections in a compact, easy-to-use design.

Key Features

• 2000 Peak Amps / 1000 Cranking Amps
  Provides the power needed to jump start large gas engines and V8 diesel applications.
• Lithium Battery Technology
  Holds a charge up to 10× longer than traditional lead-acid jump starters and delivers up to 80% more usable power in a lighter package.
• Multi-Purpose Power Source
  Can power RV slide-outs, awnings, 12V tongue jacks, small 12V equipment, and personal electronics.
• Up to 40 Jump Starts per Charge
  Capable of multiple jump starts on a single charge for 4-cylinder engines.
• Compact & Lightweight Design
  Weighs under 5 lbs—easy to store without sacrificing capability.
• Built-In Safety & Monitoring
  LED indicators display battery level, charging status, and system warnings.
• Heavy-Duty Cables & Clamps
  Includes 6-AWG, 14″ cables with copper-coated clamps for reliable current delivery.
• Integrated LED Work Light
  Bright LED with 3 modes for roadside or low-light situations.

Peak Amps: 2000 A

Cranking Amps: 1000 A

Battery Type: 12V Lithium

Jump Start Capacity:

Up to 40 jump starts (4-cylinder engines)

Capable of starting V8 diesel engines

Ports:

5V USB (2.4A)

12V DC output

Cables:

6-AWG, 14″ heavy-duty cables

Copper-coated clamps

LED Work Light:

3 modes with dedicated on/off switch

Operating Temperature Range:

-18°C to 40°C (-0.4°F to 104°F)

Weight: Under 5 lbs

Warranty: 3-Year Limited Manufacturer’s Warranty

What’s Included

• PMJS Series Lithium Jump Starter
• Heavy-duty jumper cable assembly with clamps
• Micro USB charging cable
• 12V male charging cable
• Female output adapter
• User documentation

Optional Accessories

• Lithium Battery Jump Starter - PMJS Series
• Smart Battery Trickle Charger - PMMC Series
• PMG Series 4500W Inverter Generator
• PMG Series 2300W Inverter Generator
• Generators & Converters

Can this jump start a diesel engine?
Yes. The PMJS delivers up to 2000 peak amps and is capable of jump starting V8 diesel engines under normal conditions.

How many jump starts can I get on one charge?
Up to 40 jump starts for 4-cylinder engines. Larger engines will use more capacity per start.

How long does the lithium battery hold a charge?
The lithium battery holds a charge up to 10× longer than comparable lead-acid jump starters when stored properly.

Can it power RV slide-outs or jacks?
Yes. The PMJS can power RV slide-outs, awnings, and 12V tongue jacks when coach batteries are dead.

Is it safe to use?
Yes. Built-in safety protections include reverse clamp hookup detection, over-discharge protection, and short-circuit warnings.

How do I recharge the unit?
The PMJS can be recharged using the included Micro USB cable or 12V charging cable.