Car Jump Starter, 4000A Peak Battery | For All Gas or Up to 10L Diesel, Portable Booster Power Pack, 12V Auto Jump Box with LED Light, USB Quick Charge 3.0

I have a Ford diesel truck, a boat, and motorcycle and do my own vehicle maintenance myself. This jump starter handles up to 10L diesel engines and works on my boat and vehicle ATVs This will handle emergencies independently No need to wait for AAA or another driver. With up to 60 jumps per charge, I'm covered on the road, at the lake, or on the water. This doubles as a power bank and will Charge phones, tablets, and other USB devices with dual USB 3.0 quick-charge ports and will be handy for camping, fishing, and boating trips. I worry all the time if my battery will continue to work and this gives me a stress release. With a Built-in LED flashlight and 3modes (flashlight/SOS/strobe) makes it useful for night fishing or roadside emergencies.

I have an old Generac generator that we use when we have power failures or other things happen and try to remember to start it every month or two to keep the gas clean and make sure everything is going well. The last few times, it is really slow to start and pulling the thing to start is a nightmare since it is so big! Instead of replacing the battery pack, I decided to spring for this for just a little more. The generator has the connections to jump start right near the push button, so it is a breeze to hook up and it cranks way better than the battery pack that I bought a couple of years ago ever did! I am looking forward to having this to be able to jump all of my devices that have starters as well as for backup power in case we need it. It seems to have great safety features, after cranking for a while (since I turned the choke the wrong way) it shut off the start ability for just a second. I let off the button on the generator and the pack reset itself and was ready to crank again in about a second and a half. I love that it has a case that is big enough to keep all the parts in, I have a habit of collecting random cords in boxes, so my life is miserable when I need to find stuff sometimes. I hope it holds up to use and storage, just remember to charge it as soon as you get it, it showed four out of four bars, but when I plugged it it, it charged for a couple of hours while blinking the last light. I hesitated to buy this, thinking I wasn't sure of the technology or if it would have the power of a regular generator battery but it has won me over in a big way! Edit: I was using it to charge something a few weeks ago and it completely locked up. I let it sit for a few hours and it still didn't work on either the USB ports or the battery terminals. The terminals would start but would click and act like there was a short circuit within a few seconds, only allowing use for a very short time. I contacted the seller, they got right back to me, but I had left for a trip. When I got back home, I tried it and it worked perfectly. Apparently, it needed a bit more time to reset! I appreciate the quick response from the seller and I have now used it to charge a camera, a phone (multiple times) and jumpstart a truck without any hiccups at all. I still think it is a great product - just the right size and weight to be in my truck all the time. I don't have any hesitation recommending this for anyone since I know the seller backs it up with fast support response and stands behind their products.

Second UPDATE; I never had to use the "force start" function because my battery never got low enough. According to the manufacturer the NEW FORCE START FUNCTION is used when the battery voltage is less than 2.0vdc. I.e. Very Dead... UPDATE; The manufacturer reached out to me after my original Report below. They supplied me a free updated version to test. I tested it on my V-6 Toyota Rav4. The A58 jump starter came with 4 blue lights lite - so I tested it as received. (It was probably not fully charged.) It worked perfectly on 3 levels of car battery discharge that would not start my Toyota unassisted. It worked flawlessly even with a fully discharged battery (5.3volts) that would not even turn on my ignition lights! I actually started my V-6 five different times on the original as received charge and the last test was with only 2 bars charge level. I hook up the improved A58 and after a few seconds my battery voltage was high enough to light up the ignition lights and then start the car. I never had to use the red "force start" button on the side of the cable control unit. My Toyota would not let the battery discharge enough to even require me to use the red force start button. Even with a battery so low that it would not turn on any ignition lights with the switch on and would not even make an attempt to turn over unassisted, the A58 started the engine within a few seconds simply by connecting the A58. So I cannot comment on the force start function. You could also run your laptop or other high amperage 12vdc device for hours using the included 10 amp (120watt) cigarette-lighter style outlet. Very handy in a power outage if you buy a 100watt- 12vdc to 120vac inverter (under $20) to match. Comes with Type C charge cable -you supply the USB 5.0v power outlet from car or your own wall charger brick. The battery alligator clips spread 24” apart which means they will work on most boat battery set ups too. PROS: Long battery clip Leads =24” spread, Sturdy large alligator clips, Rugged battery enclosure, QC 3.0 USB + 2.0USB power supply ports both which worked. Basic LED flashlight with strobe & SOS functions. Status indicator lights on Cable unit tell you if its ready to jump start. Nice Hard Storage Case included . Plenty of capacity for even a large V-8. Bargain priced at $90. CONS: none that I see. This is a keeper! ORIGINAL & OUTDATED REVIEW: The complaint others have noted that it does not or may not work was true for me. THE PROBLEM MAYBE THE BLUE CHARGE LEVEL INDICATOR LIGHTS. When I received the AVAPOW Car Jump Starter, 4000A Peak 27800mAh Battery, it showed 4 bar lights out of 4 lighted. I thought this meant a full charge and i tried to start my toyota 3.5L V-6 gas engine with a dead battery (9.6volts). First I wanted to see how long the green "ready to start light" would stay on. The green ready to start light came on, and stayed on for about 45 seconds. Much longer than the 2-3 seconds that others had noted. So I thought great- and so I tried to start my engine. I disconnected the charger from the battery to reset the control, and got the green light again. When I tried to start the engine the charger indicator immediately went to red and did not even try to start the engine! Tried this a couple of more times. NO LUCK. The blue indicator bars on the charger still still showed 4 out of 4 bars. Then I decided to charge the went to charger from my USB wall charger. My wall charger supplied about 2 amps at a nominal 5 volts for about 45 minutes. The jump starter immediately started my medium sized gas engine. The jumber started still showed full charge. What this meant to me is that YOU CAN NOT COUNT ON THE JUMP STARTER'S CHARGLE LEVEL INDICATOR LIGHTS TO SHOW YOU THE START OF CHARGE OR READYNESS TO USE. Which makes this a non-keeper for me. One minior night-pick is that advertisement says two USB output ports are 3.0 rated. In fact only one of the two is 3.0 rated and has the corresponding blue color insulator. I Loved the extra large capacity of this unit but need to know if it is ready to use! Having indicator lights saying all is good with charge level when it is not is worse than no charge level indicator at all. I suspect that most of the user problems stem from a bad charge level indicator!

This car jump starter was a great product at a reasonable price. It worked very well for 4 different cars that we had. It was an improved version from the previous generation. After about a year, it couldn’t be recharged. I reached out to AVAPOW technical support for help. Jolene was very responsive and helpful. After a few emails exchange, AVAPOW tech concluded that the unit was defective, so a brand new replacement unit was shipped and delivered to me within three days.

I like having these small jumper units around in my cars in case of emergencies and find I tend to use them more for others than myself. Like others I own this comes with a convenient carrying case that stores all the accessories and battery in a nice protective case. What makes this a bit more special is that you can easily recharge your phone on this jumper, just by laying your phone on top of it. To be honest, I've probably used this feature far more than I have used it to jump start a car. Once fully charged it seems like I could just keep recharging my phone, over and over, without have to recharge the battery itself...it holds that much power and the battery itself, once charged seems to stay charged without any attention for over 6 months at a clip. I check it once in a while (it's easy to check the charge level) and it never seems to degrade no matter how long it's been sitting. There are lots of these units, made by different companies, available, so it makes sense to buy one with the features that work for you. I've had no issues trying to jump various cars with this unit and the ability to recharge my phone has come in handy quite a few times.

We bought this after a recommendation from our friend and this was extremely helpful when our car's battery was completely down. Without waiting for any other car we were able to give jump to our car to start it. Definitely recommend it to family and friends.

One of the best starters I’ve used. Holds charge pretty well. Start vehicle pretty well. I like that comes in its own travel case.

I Purchase the unit a year ago and I have absolutely loved how it works. Then all of a sudden it would not take a charge. I contacted the company and the representative -Jolene ask me a few questions and asked me to send a video of what it was doing. They are now sending me a replacement. Thank you for great customer service