UTRAI JS4 is a powerful jump starter for 12V vehicles with a 2500 A peak current, which also works as a power bank with fast charging, 10W wireless charging, and a built-in LED flashlight (including SOS). Thanks to the smart clamps and a clear display, it provides confidence on the road and in emergencies.
The UTRAI JS4 jump starter combines high starting power with practical features for everyday use. It reliably helps when your battery is discharged, and thanks to its compact design it’s suitable for a car, motorcycle, and trips where you want to have power and light always at hand.
Key benefits and features:
- 2500 A peak current for quick starting of 12V vehicles.
- Supports engines up to 8 L gasoline and 7.5 L diesel.
- Power bank function: 2× USB-A + USB-C for charging multiple devices at the same time.
- Two-way fast charging for convenient recharging.
- 10 W wireless charging for compatible phones.
- LCD/LED display to monitor status and power.
- LED flashlight with 3 modes: standard, SOS, strobe.
- Smart jump starter clamps for increased connection safety.
- Emergency extras: compass and safety hammer.
UTRAI JS4 is an ideal choice for drivers who want a reliable jump starter booster in the car, modern charging for electronics, and practical safety features in one device.
Specifications
- Manufacturer
- UTRAI
- Model
- JS4
- Display
- Digital LED display
- Peak current
- 2500 A
- Voltage
- 12 V
- Fast charging
- Two-way fast charging
- Conversion efficiency
- 85%–90%
- Battery capacity
- 59.2 Wh
- Wireless charging
- 10 W
- Max. gasoline engine displacement
- 8 L
- Max. diesel engine displacement
- 7.5 L
- DC output
- 12–16 V / 10 A
- USB 1 output
- QC3.0 5 V 3 A / 9 V 2 A / 12 V 1.5 A
- USB 2 output
- 5 V / 2.4 A
- USB-C (Type-C) input
- 5 V / 2 A
- Dimensions
- 180 × 93 × 43 mm
- Weight
- 863 g
