CAT797 12V/24V Truck Jump Starter Heavy Duty 30000A Peak Class 8

This thing is amazing it jumpstart my semi truck with no problem great investment …

Working in the heavy duty diesel industry this jump pack has proven to be a crucial tool to have in my service van. So far I have not found a dead truck that this unit cannot provide enough power to start! Very happy with my purchase and would recommend to others. Works just as well as any competitors very expensive alternatives.

This is a smaller unit compared to other large vehicle jump starters. Have used it 3 times since purchase. Once on my kenworth t680 and 2 other times on different semitrucks. Each time the truck started right up. Probably has enough charge to jump 5 or 6 trucks before needing to be recharged. The cables can be a little tricky to get tucked back in but really a non-issue. Easy and quick to use.

Wow, this unit is exactly as described if not better! It’s easy to use, not too heavy yet seems durable. Although it was a bit pricey, it packs a punch! Don’t sleep on this one.

Great tool to have in the semi. Hasn’t failed yet!!! Worth every nickel

Excellent product. I had a School Bus with 3 dead batteries. I hooked up the jump box and it fired up with no problems immediately!

Simply one bad ass jump box. I own a d/7 cat dozer , 308 cat excavator a 14 yd dump truck amongst other equipment. Never even hesitated. Just pure bad ass unit

It works pretty good but it seems to drain and need charging fairly quickly. It is reliable if not used too many times in a short period on 13L and 15L engines.

I purchased this starter to start up my truck that the batteries have died for a while. This unit completely eliminates my anxiety and boost up my truck within 30 seconds. This booster is aimed for professional driver and mechanic, I would say it is one of my incredible investments that pays for itself. Highest recommended!

The DM1264 heavy‑duty jump starter is an impressive piece of equipment, built with the kind of reliability you want when dealing with large diesel engines. Although I'm unable to test the 30,000A peak rating I can attest that this unit delivers the current needed to turn over high‑compression engines without hesitation. I tested it in cold conditions, and the cold weather starting capability is absolutely legitimate. I was using it in about -24C(-11.2F) and it came through each and every time and actually states it is rated to work in up to -40C/F. Voltage stability is excellent, and the unit maintains safe output levels even under heavy load which is extremely important not to fry equipment. The build quality seems strong, with solid terminals, thick cables, and a housing that feels ready for shop, roadside, or fleet use. The clamps on this are some of the strongest clamps I have seen on a booster and give and extremely strong grip. They do take some hand strength to get them to open - not an issue, just so you are aware. The cables slide nicely inside the bottom of the unit which makes it much nicer to move around and for storage. The internal battery management system does a great job regulating charge and preventing over‑current or reverse polarity issues. It’s also surprisingly portable for something with this much power, making it practical to keep in a truck, service vehicle, or garage. It weighs around 14LBS but has a nice strong handle and is evenly weighted making it relatively easy to carry around. What stands out most is how quickly it recovers between uses and how confidently it handles large displacement engines, both gasoline and diesel. The largest engine I tested this on was a 14.9L diesel, and it boosted it without the slightest hesitation. I also used it on smaller engines including an 8.9L diesel, a 6.6L diesel, and a 6.0L gas and it handled all of them effortlessly This is not a consumer booster, it’s a professional‑level booster designed for commercial vehicles, heavy equipment, and anyone who needs guaranteed starting power in harsh conditions. Next, this thing does have the option to charge external equipment via USB, 12V car adapter and a DC port. With the massive amount of power storage this thing has - it gives it endless uses and options that could be useful in a lot of different situations. It also has a nice powerful light on it that has a solid beam, red and blue warning light and an SOS option which is a nice feature to have in emergency situations. If you need a dependable, high‑output jump starter that performs exactly as advertised, this one is built to do the job. Well deserved 5 stars.

I tried this monster jump starter on a diesel truck and it worked as a piece of cake in a cold Canadian winter day after other smaller starters failed. First of all , everything feels so sturdy and heavy duty and built to last , the cables , the poles , the buttons , everything . The led light is so bright and can lighten the space as if it were day light . The battery lasted long even in -15 to -20 C. It has a DC charger , car charger , 2 fast USBs and 1 type C charger . It has no AC outlet though . It takes seconds to jump a V6 pick up easily regardless the conditions. The portability is questionable cause heavy and bulkier than others . I like how the poles are hanged to the sides and the cords does not cause a mess around . The carrying handle feels so sturdy and its grip is good . The outlets has no covers which is weird for a heavy duty monster like this. The screen is easy to read and it even gives alert for faulty connections . Great heavy duty jumper in general

Very powerful starter. My neighbor had an accident and couldn't drive after surgery and as such his diesel truck was parked for months without use. At some point he tried to start it but with -40C, it wouldn't go anywhere. I saw his son tried with a smaller starter, but he drives a small car so the starter wasn't strong enough. I saw them struggling in the cold, but fortunately I remembered this beast of a charger. OMG it had no issue whatsoever starting the truck on first try! This thing is heavy and powerful. The clamps are strong, much stronger than some I've seen that the cover shattered when used a few times. It also recovered very quickly after starting the truck. I like it that it also comes with a 12v plug that can be used, for example, for a tire inflator, and USB ports that can be used to charge a phone or some other accessory in a pinch. Anyway, it's heavy but packs a punch, even in extreme cold conditions and gives us the peace of mind that we won't get stuck because of a dead battery.

I used the Heavy Duty Jump Starter DM1264 on my truck and it worked well. It felt very strong and started my diesel engine quickly, even in cold weather. The unit is heavy but that makes it feel solid and reliable. I liked that it is easy to connect and the cables were thick and good quality. One thing to know is that it is big and heavy, so it’s not as easy to carry around as a smaller jump starter. But for my truck and big engines, it gave me confidence that it will work when I need it. Overall, it did the job and I would use it again.