| Model Number | J400 | J401 | J401X | J402 | J402 PRO |
| Peak Amps | 2000A | 2500 A | 2500 A | 3000 A | 3500 A |
| Battery Capacity | 23.68Wh | 74Wh | 74Wh | 88.8Wh | 88.8Wh |
| Operating Temp | -4℉?to 122℉ | -4℉?to 122℉ | -40℉?to 122℉ | -4℉?to 122℉ | -4℉?to 122℉ |
| Light Output | 300 LUMENS | 300 LUMENS | 300 LUMENS | 300 LUMENS | 300 LUMENS |
| Fast Charging | QC3.0 15W(Max) | PD 100W Two-Way | PD 100W Two-Way | PD 100W Two-Way | PD 100W Two-Way |
| Item Dimensions | 6.89×3.39×1.69 in | 9.45×4.19×2.36in | 9.45×4.19×2.36 in | 9.45×4.19×2.36in | 9.45×4.19×2.36in |
| Engine Rating | 8L Gas/6L Diesel | 8.5L Gas/6.5L Diesel | 8.5L Gas/6.5L Diesel | 9L Gas/7L Diesel | 9.5L Gas/7.5L Diesel |
●Versatile Compatibility
This car jump box is designed for a wide range of vehicles, including:
Cars, motorcycles, boats, and RVs
ATVs, SUVs, vans, and tractors
Mowers and many more
A truly adaptable solution for various needs.
●Two-Way Fast Charging
More than just a jump starter, this device can quickly charge:
Smartphones, tablets, and laptops
Wearable devices and other electronics
A reliable power source wherever you go.
●Durable & Weather-Resistant
Built to endure harsh conditions with:
IP65 water resistance – protects against rain and dust
94V0 flame retardant rating – enhances safety
Rugged enclosure – withstands drops and impacts
Designed for long-lasting performance.
●Built-in LED Flashlight with 3 Modes
Equipped with a powerful LED light featuring:
Steady mode – for general lighting
Flashing mode – for visibility
SOS mode – for emergencies
Stay prepared in any situation.
Grepow offers a comprehensive OEM/ODM service for vehicle emergency jump starters, integrating advanced technology and modular design to enhance performance and customization.
●Unparalleled Customization Freedom
?Supports dual-platform development for Li-Polymer and Lithium-Iron Phosphate, with flexible peak current configurations from 1000A to 10000A.
?Options for exterior ID design, intelligent digital display, USB?C fast charging module, and low?temperature start technology available on demand.
?Globally certified with CE, FCC, ROHS, UN38.3, and more—empowering your seamless entry into premium European and American markets.
●Customizable Multi-Function Design
Beyond jump-starting, our solutions integrate lighting, SOS warning, PD 100W fast charging, digital tire pressure monitoring, and a smart air pump (0-150 PSI). Optional water pump modules and wireless charging expand functionality for various applications.
●Outdoor enthusiasts, fleet managers, and everyday drivers seeking a reliable emergency toolkit.
●Brands looking to launch co-branded or white-label jump starters with unique specifications.
