Founded in 2011, Yesper—a pioneering high-tech enterprise in advanced power solutions—officially introduces its latest innovation: Monster Start P1, a high-performance portable jump starter engineered for both everyday drivers and heavy-duty vehicle operators.

Designed to deliver dependable power in critical moments, Monster Start P1 supports a wide range of vehicles, from passenger cars to heavy trucks, buses, RVs, and commercial fleets. Whether on long-haul routes, remote job sites, or outdoor adventures, it provides confidence when power matters most.
Unmatched Jump-Starting Power for Heavy-Duty Vehicles

The Monster Start P1 stands out with its ability to jump-start both 12V and 24V vehicles, a capability rarely found in portable jump starters. With an impressive 6000A peak current, it delivers the power required to start large engines quickly and reliably.
This makes it an ideal solution for:
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Heavy trucks and buses
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Commercial and fleet vehicles
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RVs and off-road vehicles
For truck drivers and fleet operators, Monster Start P1 is more than a backup—it’s a critical safety tool. In the event of a dead battery in remote locations or extreme weather conditions, it can restore power within minutes, helping to avoid costly downtime and operational delays.
Fast & Intelligent Charging with QC 3.0 Technology
Monster Start P1 features an advanced Quick Charge 3.0 integrated architecture system, delivering faster, safer, and smarter charging performance. The unit can be fully recharged in as little as 1.5 hours, while maintaining optimal battery health.
QC 3.0 technology enhances:
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Charging speed
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Power efficiency
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Safety protection
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Noise reduction
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Intelligent power management
This rapid recharge capability minimizes downtime and ensures the device is always ready when needed.
High-Capacity Power Bank for Multiple Devices

Beyond jump-starting, Monster Start P1 also functions as a powerful portable energy station. Equipped with a 58,000mAh high-capacity battery, it can jump-start multiple vehicles or power essential electronic devices for extended periods.
It supports charging for:
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Smartphones and tablets
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Cameras and portable electronics
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Emergency and outdoor equipment
This versatility makes it especially valuable during emergencies, long trips, or outdoor use, ensuring critical devices remain powered without frequent recharging.
Engineered for Extreme Conditions
Built for reliability in demanding environments, Monster Start P1 performs consistently in harsh weather conditions, including extreme cold and heat. For heavy-duty vehicles immobilized by battery failure, it provides a dependable solution when conventional assistance may not be readily available.
This rugged performance makes it suitable for professionals in transportation, logistics, construction, and other industries where reliability is non-negotiable.
Compact Design Without Compromising Power
Despite its heavy-duty capabilities, Monster Start P1 remains highly portable. Weighing just 3.7 kg, it is compact enough to store conveniently in a trunk or under a seat.
The balance between portability and performance allows users to carry industrial-level power without sacrificing space or convenience—ideal for daily driving, long-distance transport, or fleet management.
Built-In Emergency Lighting for Added Safety
Monster Start P1 is equipped with a multi-functional LED flashlight, featuring:
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Standard illumination
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Strobe mode
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SOS emergency signaling
These lighting modes enhance safety during roadside emergencies, night operations, or outdoor activities, providing visibility and an added layer of security when it matters most.
A Reliable Emergency Power Solution
With 6000A peak current, 58,000mAh capacity, fast QC 3.0 charging, and support for both 12V and 24V systems, the Monster Start P1 represents a new level of performance in portable jump starters. Specifically designed with heavy-duty vehicles in mind, it delivers power, reliability, and peace of mind in a compact form.

