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Projecta LiFePO4 Jump Starter - 12V/24V - 3,000 Amps
Projecta

Projecta LiFePO4 Jump Starter - 12V/24V - 3,000 Amps

Part Number: VX55NR
In Stock
$1,389.99
Retail:$1,695.79
You Save: $305.80
Jump Starters and Jumper Cables
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You're dealing with a dead battery. Maybe it's a fleet truck, maybe it's a bus. Once you start it, this jump starter will recharge itself from the vehicle's alternator. Then, you can put it back in storage and move on to the next job. Fastest Shipping and Great prices for Projecta LiFePO4 Jump Starter - 12V/24V - 3,000 Amps. Read our customer reviews of Projecta jump starters and jumper cables. Call 1-800-940-8924 for expert service or order your jump starters and jumper cables part number VX55NR by Projecta online at etrailer.com.
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Projecta Jump Starters and Jumper Cables - VX55NR

  • Jump Starters
  • Heavy Equipment
  • Projecta
  • 2000 - 3999 amps

You're dealing with a dead battery. Maybe it's a fleet truck, maybe it's a bus. Once you start it, this jump starter will recharge itself from the vehicle's alternator. Then, you can put it back in storage and move on to the next job.


Highlights

  • Rapid Recharge Technology: Recharges from your vehicle in just 40 seconds after the jump - no wall outlet needed.
  • Automatic Voltage Detection: Identifies 12V or 24V systems the moment the clamps connect.
  • Built for Heavy-Duty Vehicles: Starts up to 12-liter gas and diesel on 12V systems and all 24V gas and diesel vehicles.
  • LCD Screen with Diagnostics: View battery voltage, fault codes, and system status at a glance.
  • Includes Docking Station for Shop Use: Keeps the unit charged and ready for the next job.
  • More Charge Cycles Than LiCo Batteries: Internal LiFePO4 battery lasts four times as long as LiCo batteries in other chargers.

Features to know about

Recharges Without a Wall Outlet

Some people buy a jump starter, use it once, and forget to recharge it. Then, it's dead the next time they need a jump. That's why this one charges straight from your vehicle in about 40 seconds. After the jump, it refuels itself using the alternator, so you can pack it away and move on without adding anything to your to-do list.

Handles Heavy-Duty Vehicles with No Setup

This jump starter supports both 12V and 24V systems and automatically detects the voltage as soon as the clamps are connected. It can jump-start up to 12-liter gas or diesel engines on 12V systems and any standard 24V truck or bus. It's built to handle serious starting loads in commercial yards, mining sites, or roadside emergencies without any manual settings.

Easy to Use with On-Screen Feedback

You don't need to memorize a sequence or press any buttons. Just connect the clamps and start the engine. If the battery is too low to detect, you can activate override mode manually. A full-color LCD screen shows system voltage and fault codes in real time, so you know what's happening the moment it powers on.

Built-In Safety That Works in the Background

Mistakes can happen in fast-moving or high-stress environments. The clamps are spark-free, and the system guards against reverse polarity, over-voltage, short circuits, and overheating. Every safeguard is automatic. It's designed to protect both the vehicle and the starter from the kinds of errors that happen when you're moving quickly.

Specs

Compatibility:

  • Gas engines: up to 12 liters
  • Diesel engines: up to 12 liters
  • Battery type: lead-acid (flooded, AGM, gel, and calcium) and lithium (LiFePO4)

Electrical:

  • Voltage: 12V/24V
  • Crank assist: 1,000 amps for 12V, 850 amps for 24V
  • Vehicle voltage range: 2V to 14.6V for 12V, 14.7V to 30V for 24V

Battery:

  • Type: Lithium (LiFePO4)
  • Capacity: 6 Ah at 12.8V, 48,000 mAh at 3.2V, 153.6 Wh
  • Peak amps: 3,000 amps
  • Battery cycles: 2,000

Cables:

  • Positive lead: 59" long
  • Negative lead: 59" long

Temperature:

  • Operating temperature: -4ºF to 140ºF
  • Operating temperature (charging): 32ºF to 113ºF
  • Storage temperature: 14ºF to 113ºF

Construction:

  • IP rating: IP65

Dimensions and Weight:

  • Overall dimensions: 14-7/16" long x 6-11/16" wide x 12-13/16" tall
  • Overall weight: 23.5 lbs

Warranty:

  • 1 year


PJ-IS3000-2 Projecta Intelli Start Pro Jump Starter - 12V/24V - 153.6 Watt Hours - Lithium LiFePO4

Installation Details VX55NR Installation instructions


California residents: click here


Ratings & Reviews

5.0

1 reviews
You're dealing with a dead battery. Maybe it's a fleet truck, maybe it's a bus. Once you start it, this jump starter will recharge itself from the vehicle's alternator. Then, you can put it back in storage and move on to the next job.

by:

This item is nice!! Compact and ready for any moment! I like the auto charging while vertical is running. Price was just right


1
1

See what our Experts say about this Projecta Jump Starters and Jumper Cables

  • Heavy Duty High Output Jump Starter Pack For 12V AND 24V Batteries In Diesel Pusher Class A RV
    Hey Ron - that’s a really important detail, and yes, the cold is a complete menace to most batteries! The Projecta Intelli-Start 3,000A jump starter # VX55NR uses 59-inch jumper leads, which are significantly longer than the other Projecta models. That extra reach makes a big difference on RVs and coaches where batteries are tucked away or spread out. Between the cable length, 12V AND 24V support, and higher starting capacity, it’s a much better fit than smaller units for RV setups like...
    view full answer...
  • Comparing Lower Amperage Portable Jump Packs To Higher Amperage Premium Jump Packs For Car Batteries
    Hey Frank! That’s a great question. The Projecta Intelli-Start 3,000A # VX55NR is built for frequent, heavy-duty use. On 12V systems, it’s rated to start gas and diesel engines up to 12 liters, and on 24V systems, it’s designed to handle all standard gas and diesel applications. That makes it a strong fit for fleets, buses, larger trucks, and equipment that smaller jump starters just aren’t comfortable with. If you have a fleet or a shop, or you're a mobile mechanic, this will be the top...
    view full answer...
  • Comparing Jump Starters For Cars That Can Handle Various Vehicles And Equipment
    Hey Melissa! That kind of flexibility usually points to one option. If you truly want one unit that can cover everything, the Projecta Intelli-Start 3,000A # VX55NR is the most versatile. It handles standard 12V vehicles, large diesel engines, and full 24V systems without switching tools. That’s why shops and fleets often standardize on it. If you want one that's a bit more affordable, but still one that can handle your vehicles, the 2,000A option # VX23NR is a good choice that doesn't...
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  • Best Portable Jump Box For Fleet Of Box Trucks And Busses That Need Jump Started + Charged In Winter
    Hey Aaron! Thanks for laying that out - it sounds like you’d really benefit from having a heavy-duty portable jump box that can live with the fleet of vehicles in case the batteries ever go dead. In your case, something like the Projecta Intelli-Start 3,000A # VX55NR makes a lot of sense. It’s designed for regular fleet use and can handle up to 12-liter gas and diesel engines on 12V systems, as well as all standard 24V gas and diesel vehicles and RVs, which covers box trucks and shuttle...
    view full answer...
  • Portable Battery Jump Pack For Heavy Duty Equipment And Diesel Farm Equipment
    Good morning Claire, hope your day’s off to a great start! For farm and diesel equipment, the Projecta Intelli-Start 3,000A # VX55NR is usually the right answer. It supports both 12V and 24V systems, which is huge when you’re dealing with a variety of heavy equipment, and it has longer 59 inch jumper leads that make reaching batteries on tractors and equipment much easier than smaller jump packs. I really like the safety features and built-in LCD screen for diagnostics / error codes....
    view full answer...
  • Best Portable Unit To Charge And Jump Start Motorhome Coach Batteries That Go Dead In Winter Months
    Hey Mike! Cold weather is brutal on batteries, especially when vehicles sit outside. For that kind of setup, the Projecta Intelli-Start 3,000A jump starter # VX55NR is a really strong option. It’s built for heavy-duty use and handles large 12V engines up to 12 liters, as well as all standard 24V gas and diesel vehicles, which covers motorcoaches and larger trucks well. When the battery is run way down, you can use the manual override mode to apply power long enough to wake the battery...
    view full answer...
  • Jumper Pack For Various Fleet Vehicles That Need Long Cables To Jump Start
    Hey Steve! That’s a situation where portability and capability both matter. For setups like that, the Projecta Intelli-Start 3,000A # VX55NR is a really good fit. It’s powerful enough to handle large 12V engines up to 12 liters and all standard 24V gas and diesel vehicles, so you’re covered no matter which vehicle won’t start that day. The longer 59-inch jumper leads also make a big difference when batteries are tucked away or you can’t get parked right next to the vehicle. It’s also...
    view full answer...
  • Reliable Heavy Duty Jumper Pack For Roadside Assistance Business Than Consistently Jump Starts Cars
    Hey Leo! That’s a great question - reliability matters a lot in your line of work I'm sure. Who would want to call for roadside assistance just to find out their jump box is dead or fried? For consistent roadside assistance, the Projecta Intelli-Start 3,000A jump start box # VX55NR really shines. It’s powerful enough for large trucks and buses, supports 24V systems, and its longer cables help when batteries aren’t easy to access. The extended manual override charge mode also helps with...
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  • Strong Portable Jump Box For Big Rigs And Trucks On Jobsite That Don't Start In Winter - Self Charge
    Hey Victor! That’s definitely a “needs to work every time” scenario. Time is money, after all. For use on large trucks, the Projecta Intelli-Start 3,000A jump starter # VX55NR is still a smart pick because it removes guesswork. It’s rated for large 12V engines and all 24V systems, so you’re never wondering if you’ve got enough power when something won’t start. It can charge back up off the vehicle so you will actually leave it connected for a good minute or two after the vehicle is jump...
    view full answer...
  • Strong Portable Jump Box With Long Cables For 24V Battery System In Motorhome RV
    Hey Denise! You’re thinking about this the right way. For a motorcoach with a 24V battery system, the Projecta Intelli-Start 3,000A jump box # VX55NR is designed exactly for that application. It’s not just “compatible” with 24V - it’s intended for regular use on 24V gas and diesel vehicles, which is why it’s so common in fleet and coach environments. It also has plenty of amperage for a strong punch of cranking power, and very long cables. Do you use this primarily for travel or storage...
    view full answer...

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Info for this part was:

Employee Daron K
Updated by:
Daron K
Employee Michael B
Updated by:
Michael B
Employee Alex H
Written by:
Alex H
Employee Anthony G
Edited by:
Anthony G

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