MOSTOOL 5000A Car Jump Starter 12V Portable Battery Booster with LED Display Fits All Gas Engines and Up

Very powerful 4 its size an weight... An also great 4 the price!!!! I've used it quite a few times on all types of V8 vehicles... From 6.2liters engines on down. I only had one issue with a temp light that comes on. rest a sure I had email Mostool. An surprisingly in a timely fashion (Mostools tech team) contacted me. An with great appreciation had me 2 explain the issues I had with the product. an initially found that it was just defected. So a spokesperson from (Mostool tech team) personally apologize 4 the issue. An any inconveniences I may have had. with An offer 2 fully compensate me or ship me a brand new M8 jumpack Free of charge. So 3 days later with tru professionalism. Mostool made me hole. An I received another M8 jumpack in the mail.... So thank u spokesperson & the hole (Mostool tech team)!!!!!! Read more

Would now power on. Had to return. Read more

I really like this jump starter. Comes with a hard case, two USB cables (C-to-C and A-to-C), and the jump starting clamps with 8AWG cable; there are only two buttons on top (power and LED light). Despite the simple design and relative paucity of accessories, it has a number of good traits. - A good sized LCD screen on top with large font that reads out the internal battery % and car battery voltage (when connected to vehicle), plus a large green READY bar letting the user know everything checks out and it's ready for vehicle start. - The bright built-in LED flashlight is on the *correct* side of the unit, where the jumper cable socket is. This lets the flashlight illuminate the clamps as you attempt to hook them up (with correct polarity) to the vehicle's battery, unlike other jump starters that have flashlights *opposite* the jumper cable side, making them useless as you try to hook things up in the dark. - The rated internal lithium battery capacity is 88.8 Watt hours (24,000mAh x 3.7V). In my full charge-discharge test, I was able to extract 83.2Wh from the USB-C port, discharging @ 60W. When taking into account a typical ~9% voltage conversion circuitry loss, the actual tested battery capacity is around 91Wh -- more than the rated spec. Excellent! - Unlike some jump starters that stop delivering power after 3-4 seconds of cranking to save itself from overheating, I was able to crank the engine for >10 seconds in clear flood mode with this unit continuously delivering power, before *I* decided to stop cranking and not overheat my starter. I love this ability, since older (especially carbureted) cars need long cranks to start in the cold. - Speaking of cranking, this thing turned over my 2.5L 4-cylinder engine like the energizer bunny on steroids for over 10 seconds. I have little doubt it can jump start large displacement gas / diesel engines, especially when fully charged. - The 60W USB-C port allows the device to fully charge itself in about 1.5 hours with a 60W USB-C PD charger, which is pretty decent speed. - Standard reverse-polarity protection is included (lights up a warning icon and sounds a buzzer when the clamps are hooked up backwards), which could happen frequently when drivers aren't sure of the polarity of their vehicles' batteries, or just due to carelessness. There are some things I wish could be better: - It has a 15V DC 5521 output jack rated at 10A for powering accessories, but no cigarette lighter socket adapter that plugs into this jack. I really wish this accessory was included, so that you can leverage the ample battery capacity and portability to power 12V DC devices (portable tire inflators for example, to get you out of even more types of jams). - Unlike some jump starters, it has no "boost" button to jump start stone-cold dead batteries in cars that haven't been run for months, batteries that have such low / no voltage that jump starters can't detect the hookup and refuse to work. Unfortunately I don't have a stone-cold dead battery to test this, though it seems to be very sensitive in detecting hookups, and also repeatedly sends pulses of voltage to the dead battery to "wake it up" prior to the actual jump start. This seems to be an advanced feature that I haven't seen in other jump starters. In summary, despite the simple design and relative lack of adapters, this powerful, high-capacity jump starter gets all the major design points right and has more than enough power to get you out of a pinch, even with large-engine vehicles. Highly recommended. Read more

They sure packed a lot of power in a compact and relatively lightweight case. This unit starts my pick-up without any hesitation or delay. When I try jump starting with cables, I typically have to wait a bit with the other vehicle’s engine running before I have enough power to get it started. This jump starter does it right away. I have to say that I am pleasantly surprised. It recharges using a standard USB charger, but they do not include one. Since it calls for a 60 watt USB charger, they really should have included it. I could not find a 60 watt version in my collection and I have lots of them. The bright color display is big and easy to read. There is also a very super bright flashlight that also acts as emergency lights built in. They have included standard USB jacks so you can charge your phone and other USB devices off the internal battery. They did not include a cigarette lighter power adapter as back-up, but I wish they had. You never know when you need extra power. Everything stows nicely in its semi-hard fabric zipper case. It is sure easy to keep on-hand in your vehicle until you need it. Overall, they did a good job on this jump starter, but they should have included a couple of more accessories to make it a complete set. Read more

There is absolutely no reason why your car, truck or SUV doesn't have one of these tucked away under a seat or in the cargo area. Because it's a must-have, no doubt about it. Here's why. Sooner or later, your battery is going to go out. But the problem is, when and where? Will it be at the store, right at closing time? Then you or a loved one is basically stranded at night in an empty parking lot. And odds are, there won't be anyone around willing to give you a jump. That's assuming you want to wander around asking strangers for a jump start, which may not be entirely safe for some people. You also have issues with where you're parked. I've seen it happen time and again that someone is parked in a position that even when a jump is offered, the cables won't reach. Then you have to figure out how to push the car to some place that the cables will actually connect. You don't have to worry about any of that with this jump starter. Pop the hood, connect it to the battery, start your car, disconnect. You're done in about a minute or two, tops. No worries about the where or when, you have peace of mind tucked away in your vehicle for when you need it. Works well, and at a price that's absolutely worth the peace of mind and freedom from anxiety that you deserve. Read more

The media could not be loaded. This battery is larger than most with peak 5000 amps that can start any vehicle including large trucks. I like how the instructions are printed on the battery as some folks aren’t accustomed to using these. It has multiple USB connections and can be used as a super power bank on trips to provide many multiple recharges for computers and phones. Nice carrying case too. Would make a good gift as every car or boat should have one. Read more

Charges quick and holds charge good. It's great to have in case you've left lights on or something and need a quick charge. Works great. Read more