The Rated power of the Jstar4 is 15W, it can be 5V 3A, the largest voltage is 5V, so no matter how large the charger you used to charge the device, it can only accept 5V. We suggest to charge it with your phone or other wall outlet not less than 2A. Less than 2A might take little long time to charge. And too high power like 40W or 65W might have compatibility issues.
The USB output can be 18W, at 5V/3A, 9V/2A, 12V/1.5A.
Safety and faster jump start your flat battery in 1- 3 seconds.
With a peak current of 2500A, the UTRAI Jstar 4 Power Pack can start up to 8.0L gas and 7.5L diesel engines in seconds. On a single full charge works up to 25 times to jump start cars, motorcycles, trucks, boats and more. (Fully charges in 5-6 hours)
QDSP Technology, Special clamps with screen provide 10 kinds of screen display status analysis, understand your car battery in seconds.
Safety hammer, LED light, compass, power bank makes it a great handy emergency tool.
Battery Capacity: 24000mAh
Peak/ Start Current: 2500A/ 1250A
Battery Cycle Life: ≥300 times
USB Output: 5V/3A, 9V/2A, 12V/1.5A
Type C Input/Output: 5V/3A
Gas / Diesel Engine Rating: Up to 8.0L /7.5L
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