FAQ:
Regarding the start-up power supply, we have summarized the product usage problems that many buyers will encounter during use. Buyers can click on the link to learn more. https://www.utrai.com/pages/troubleshooting
4000A JUMP STARTER JS-1 Pro
New upgrade, multi-function jump starter, start your dead vehicles anytime, anywhere.

J***e (verified owner) –
It arrived quickly and is as advertised. The advertisement did not however state its capacity, for your information it is 59.2 wh, which means it can crank an average (100 amp) car starter draw for just under 3 minutes.
J***e (verified owner) –
It arrived quickly and is as advertised. The advertisement did not however state its capacity, for your information it is 59.2 wh, which means it can crank an average (100 amp) car starter draw for just under 3 minutes.
Verified Buyer (verified owner) –
Excellent 👍👍👍👍👍👍👍 Starts with a low battery already tested by me. I recommend the seller and this is already the second one I purchase. I recommend it 👍👍👍
P***r (verified owner) –
Very good product, I sincerely recommend it. Tested on Toyota Sienna 3.5 and Peugeot 1.6 HDI. Works flawlessly.
Verified Buyer (verified owner) –
Super Jump Starter started the old diesel without any problem with a dead battery. I definitely recommend it to everyone.
C***y (verified owner) –
medium material quality. The USB charging port is too close to the edge, the connector doesn’t hold properly.
p***o (verified owner) –
Delivery the day after ordering 😏 I bought this booster because everyone recommended it, and my previous Baseus one didn’t even start the engine. I’m super satisfied with this one because it starts my car really well. I put in the old Aku battery that had been sitting discharged in the garage for years (the meter showed 10 V) for testing. 0 HDi 140 hp with electronic turbocharging, the effect is that after 4 consecutive starts it consumed 30% of the booster, so I’m super satisfied. Now I’m looking for a bigger and more powerful engine; if I find something, I’ll test it and add a comment. At th
Verified Buyer (verified owner) –
Bought after watching a few videos on YouTube. The device looks great, high-quality materials, additionally the case included in the set looks excellent. The shipment was well packed in a sturdy original packaging. I checked the operation of the inductive charger; the Samsung S24 Ultra phone worked, and the flashlight worked in all three modes.
Verified Buyer (verified owner) –
The package arrived on time, the product was as described. I bought one for myself, the 2.5 diesel engine started easily. I bought a second one for my brother-in-law, he is very satisfied, no problems at all. A friend saw this jump starter I have and ordered one for himself. Works great on the road, a must-have. I recommend it.
Verified Buyer (verified owner) –
Great product. I rarely leave a review, but this power bank deserves it. Before this, I had a power bank from a well-known company that was supposed to start my engine (2.8L), but it couldn’t handle a slightly discharged battery. This one starts the engine even with a completely discharged battery. I am very satisfied with the purchase.
Verified Buyer (verified owner) –
I have tested charging the Power Bank’s battery, charging a mobile phone, headphones, etc., and everything works well. I have also tested the 12v cigarette lighter output, which comes with a separate cable, and it also works well. I have not tried starting a car with a dead battery. I think the internal battery capacity might be a bit short for the size and weight of the device.