ZEVZO ET03 Car Jump Starter 2500A Portable Battery Pack for Gas and Diesel Engines

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1. Anonymous Verified Buyer – 26 July 2024

   I order so that I would always be prepared. Didn’t think I would really need it but I’m always overly prepared and so thankful I was. I must have left my lights on our something while shopping because when I can out my van wouldn’t start. So o grab this little jump start connected it and it started immediately! No waiting no reading a mile long instruction manual. It’s way and quick. We have one in both vehicles and even bought one for my aunt!
   

2. Joshua S. Verified Buyer – 26 August 2024

   So this product was on sale and relatively cheap to begin with. With the original USB-A to USB-C cable it came with, it simply would not charge (or at least it seems that way). That being said, I experimented with various things and came to one solid conclusion. You should invest in a USB-C to USB-C cable and USB-C adapter because it will charge and quite quickly as well. That being said, it’s quite possible that the USB-A to USB-C cable does work, but at a significantly slower charge speed. Other than this small issue I had, I’m happy with the product and the price I paid for it. There’s plenty of other options out there, so do your research. I didn’t spend a lot of time researching.

   

3. Gaara Verified Buyer – 3 January 2025

   Turns on a dead car quickly. Once you hear the ticking after you put it on your car battery. Thats the time to turn on the car. Wait about a minute or so while the product still on. Then take it off. My only problem w it is that it takes a while to charge it. Best to charge it over night. I waited like 3 hours for it to finally go up a percentage. But after that 3 hours. It goes up by 2% every 10 to 15 minutes. I was also using a 20w charger box. So idk if that made a difference. It’s recommended 5w. But it’s best to have 20w charger boxes if you have. Idk how fast it charges w a 5w charger box but I wouldn’t recommend that. Over all. I’d recommended. Hope it works long term and have no problems

   

4. Derrick Verified Buyer – 21 January 2025

   This jumper starter works like a champ. Jump started our van in less then a second and it still had 99% battery life. Would recommend to anybody that might frequently accidentally kill there battery.
   

5. Brandon T. Verified Buyer – 22 February 2025

   This little jump box is amazing! An absolute necessity for your vehicle. Battery life is so much better than similar items. Light weight, easy to use, and comes with a charging cable and carrying case. More durable than similar items. Cable length is perfect for even diesel batteries. Multiple jumps, or charge phones, laptops with this de ice o. A single charge. The only downside is it takes a while to charge. However, it more than makes up for that in usage.
   

6. Ivonne Guevara Verified Buyer – 1 March 2025

   It charges quick and a full charge will go a long way. All you do is connect adapter to charger and cables to battery, press the power button and the charge begins. If your car battery is really dead give it at least 5 minutes before you start your engine. The cables are short but good enough to sit on battery while it jump starts. Also make sure all lights and switches are off, this helps jump start faster. I highly recommend. It comes in a hard secure case, small enough to fit under a seat. Best investment ever. It’s an amazing quick jump start to your car. Automatic, standard, mini van, truck, suv, you name it. I have already helped many with it, have recommended it to many and bought a few already as gifts.
   

7. Marc Henshaw Verified Buyer – 3 March 2025

   Excellent jump starter, used it a few times and performed flawlessly. The ET03 is also marketed as a power bank and this is its weakest feature. The USB C port is only for charging the jump starter, you can’t use it to charge a device. The two standard USB ports offer only slow 2A charging. My Pixel 6 will take hours to charge. They really should have offered high speed charging as the battery is large and capable.

   

8. Heather Stiles Verified Buyer – 5 March 2025

   A light got turned on in the cargo area of my small suv when I was moving yesterday and killed the battery. I ordered the jump starter and got it within a couple of hours. It was already at 79% charged but I wanted to be sure it had enough juice so charged it overnight. This morning I tried to start it, and after a little trial and error, it worked a dream. The instructions don’t mention that it will click when it’s working and that you don’t have to wait like other jump starters. If the instructions had been a bit more clear this would have been a 5 star review. I waited a few minutes like I have in the past to let the battery charge, then it stopped clicking and I tried to start the car. It tried, but just didn’t have enough juice. I reset it and tried again, this time I hit the starter immediately after hooking up, and it started right up. The charge is still at 100%. It literally took almost nothing to jump my car. It fits in the glove box, and the price was great for the peace of mind of having it right there if it’s needed.
   

9. Anonymous Verified Buyer – 14 March 2025

   This has a nice hard shell case. The jump starter is great quality as well as the accessories that are included. I live in Florida and after the storm I used it to charge my cell phone as well. One of my neighbors used it to jump start their car and it was awesome.

   

10. J.R. Shumacher Verified Buyer – 20 March 2025

    I’ve used mine serveral times this winter with my 3 vehicles. Starts my big 6-cylinder like a champ. My V8 isn’t running right now but I can’t see why it wouldn’t work just as well. A nice thing: I got careless and left my unit in the trunk for 4 months without touchng it. In the dead of winter. When I finally got around to checking it, I found the battery was still 100% charged and ready to go. At this price, it’s a serious deal. And the hard case it comes with is better than any othe I’ve seen. You could drop kick this case across the lawn and I doubt the unit inside would be affected at all.
    

11. Q-fever Verified Buyer – 23 April 2025

    I bought this in November of 2023 (17 months ago) and just used it for the first time today. I charged it once when I bought it and never again. My wife’s car battery died and this worked like a charm. I was skeptical but the car started right away. Couldn’t believe it. For reference, the car is a 2017 AWD Toyota Sienna minivan with a 3.5L V6. Every car should have one of these. I’ll probably get a second one for my car. This thing is a life saver and incredibly easy to use.