








🚗 Power up your ride, anytime, anywhere — never get stranded again!
The YESPER Boost Jump Starter FAST MAX delivers a massive 4120A peak current to jump-start all gas and diesel vehicles up to 10L. Its 27000mAh battery supports up to 80 jump starts per charge and recharges fully in just 1 hour via 100W USB-C PD fast charging. Featuring a 3.3-inch LCD for real-time status, advanced DSLI IV safety tech, and rugged IP65 waterproof design, it’s the ultimate portable power solution for professionals who demand reliability and speed on the go.
| Manufacturer | Shenzhen Carku Technology Co.,Limitted |
| Brand | YESPER |
| Product Dimensions | 25.4 x 5.59 x 9.78 cm; 1.18 kg |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Item model number | FAST MAX |
| Manufacturer Part Number | FAST MAX |
| Volume | 0.5 Centilitres |
| Colour | WHITE(4120A)+PD100W |
| Assembly Required | No |
| Amperage | 4120 Amps |
| Manufacturer | Shenzhen Carku Technology Co.,Limitted |
| Country of Origin | USA |
| Item Weight | 1 kg 180 g |
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