Go Big with T-Rex BJT-520B: Your Ultimate Ground Power Solution
Biggest Mobile Power Supply & Jump Starter in Its Class
Unleash Unrivaled Power in the Field

Heavy-Duty 12/24V Jump Starter
- Starts large trucks, buses, and heavy machinery with dead-flat batteries.
Full On-Site Power Supply
- 780 amp hours at 12V, 390 amp hours at 24V—run tools, lights, and more with no worries.
Mobile & Expandable
- Optional E-Trolley or vehicle trailer for effortless transport, no matter where the job takes you.
Smart Charging & Protection
- Automatic SmartCharger plus built-in reverse polarity and anti-spike features ensure safe, reliable operation.
Built for Extreme Environments
- Powder-coated steel cabinet and pneumatic wheels stand up to rugged conditions and constant use.
Why Choose T-Rex BJT-520B?
- High Cranking Power: Delivers massive peak amps to jump-start even the most stubborn engines.
- Versatile Voltage Output: Switch seamlessly between 12V and 24V to accommodate a wide range of vehicles or machinery.
- No More Downtime: Turn a single unit into a portable power station—keep lighting, pumps, or other essential tools running.
- Safe & Simple: Built-in battery isolation switch, fuse protection, and reverse polarity alerts reduce operator risk and equipment damage.
- Customizable Setup: Choose the E-Trolley or trailer add-on for optimal mobility, perfect for field service technicians and roadside assistance crews.
- Cut Waiting Times: Eliminate hours lost to engine failures—crank up trucks and equipment instantly.
- Reduce Equipment Hassle: A single GPU that serves as both jump starter and power bank, lowering the need for multiple devices.
- Get More Jobs Done: Power tools and emergency systems in remote locations, keep your operations on schedule, and boost your bottom line.
Transform your BJT-520B Jump Cart into an agile powerhouse with the battery electric BJT-520B E-Move. Thanks to its centrally positioned drive wheels, steering is smooth and stable—even on sloping ground—while ergonomic thumb controls let you vary forward and reverse speed with ease. A separate control offers top-speed override for added flexibility, and built-in safety features like emergency stop, reversing beeper, key lockable on/off, battery indicator, and a motor engage/disengage lever ensure confident operation in any environment. Experience simpler, safer, and more efficient cart movement—wherever the job takes you.

Optional Trailer Add-On for BJT-520BM

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Ready to Power Up?
Contact us today to learn how the T-Rex BJT-520B Ground Power Unit can revolutionize your operations. Whether you need to jump-start heavy vehicles daily or run vital equipment on-site, this GPU is your key to dependable, continuous power.
Don’t settle for downtime—equip your fleet with the biggest, baddest mobile power supply on the market!







