ASPERX AX2500 Car Jump Starter, 2500A Peak Battery Starter for 10L Gas or 7.3L Diesel Engines, 12V Auto Battery Booster, Lithium Jump Box with USB QC3.0, Jump Pack with Built-in LED Light

My car battery died with the car in garage and could not reach it with jumper cables on hand. I ordered the ASPERX and received it within 36 hours. It was fully charged after two hours. The car started on the first try. The product is surprisingly compact and lightweight. I expect to use it on lawn tractor(s) as well. The emergency lights and cell phone charging port are a bonus.

I have several of this type of jumper, and this one works as nicely as my others. I bought this one to use as a power supply for my telescope equipment and as a jumper pack for my yard care equipment and motorcycles.It is well finished and a really nice bit is that it comes with a charger block and a nice 12volt socket adapter. The worklight and flashing red safety beacon are nice, and the flashlight on the other end has a strong powerful beam. Nice solid jumper clamps and a cloth carry bag round out the package nicely. I feel this to be a good value, especially with the coupon savings they offered when I purchased it.

It works, but the car charger don't work. Couldn't charger my phone. But it did jump start my car.

I've used several smaller jump starters (i.e. 1500A or less) but I wanted a more powerful one and this one fits the bill. Per some reviews and being more powerful I expected it to be much bigger but it's not too big. It comes with a charger which is nice as most competitors don't provide any. It also comes with a cigarette lighter adapter so you can use a tire inflator for example. It takes a while to charge it though which is fine as you don't need to do it frequently any way.It has 4 blue LEDs which will tell you the current charge level and you just need to press one of the 2 buttons on its top - a bit less intuitive though, but power button's long press activates flash light and short press switches between flashlight/strobe/SOS. The lower button with the triangle activates the work light/flashing red/rear light and similarly has long/short press functions.In addition to a flash light/strobe/SOS, it has an additional large light which can work as a large work light or as flashing red light as shown in pictures. This is a nice extra feature which I haven't given much thought until I saw it and realized how helpful it can be in case you need it.It comes in what another reviewer said a premium packaging and with a pouch. This is probably the main disadvantage (aside from its size which cannot be avoided due to 2500A). It would be nice to come with a hard case :(The other issue which some might actually find as a pro rather than con are the clamps - these are quite large with a very strong grip, so they require powerful squeeze in order to be open and once they grab onto something they'll hold to it.I plugged it to my 3.5L V6 with a disconnected battery and it instantly started it like when it had a brand new battery. I'll keep it in my trunk and will occasionally check it to make sure it's fully charged.

This little thing works like a charm that I used it on my 2 of the old mini van and both of my vehicle's started up in an instant! and after first time startup, the battery still shows a full charge. that's impressive.it also works well to jump my lawn tractor, would recommend for anyone who have the same need as me. very handy to have.I also love the USB charging port and the tail lighting, it can be switch to Red LED or White LED.

1st, the Boost Button is on the device that connects the clamps to the battery. I had trouble finding that in the manual. I charged the battery to full when it arrived. The next day, I charged a cell phone for an hour which did not indicate any drop in voltage. Then I used it to inflate four tires (2 x 255 and 2x 285) that were each 9 lbs low. The battery operated the small air compress well. It does shut off after about 10 seconds without a load. So, I had to turn it on between each inflation. This dropped it a bar (from 4 to 3). It has been charging for about 30 min and the 3rd bar is still blinking. I don't have a dead battery to jump but I believe it will work. I'll update the review if anything changes. Also, it measures 13.9 volts output fully charged.PS: I returned two Foxpeed G29 Jump Starters (actually very nice devices) because they each measured 16.5 volts on the clamps and the cigarette lighter, I am sure the clamp voltage will come down under load but I was using the cigarette lighter output for LEDs and there was not enough load to so they were blinking wildly.

Worked fine. Jump started a lawn tractor that did not have a battery in it. There is a nice little light that is bright enough to use as a flashlight at night. Easy to connect and the lights on the jump start module are a good indicator if you are using it correctly.

Great value and useful