Clore Automotive Jump-N-Carry JNC1224 3400/1700 Peak Amp 12/24V Jump Starter

I purchased two of these over the past 4 months for two different locations. This thing is a beast! It is heavy, first and foremost. This is not a toy. It is not a small lithium ion starter you buy from HF. This jump box is well built, and strong and will start just about anything! I literally started a Cat 977 with two dead batteries and the machine had not been run in years. This jump box did not even flinch! I have started many trucks, from F250's up the tandem dump trucks without any problems. You get what you pay for and this is a good value for the month. It is simple, no frills, no modern electronics but it does the job and does it very well. Know what you are doing when you use it because there is a lot of power coming from this box.

I did a fair amount of research before deciding on this unit. After looking at most manufactures I pretty quickly eliminated the others for quality concerns. I figured for an emergency use unit it did not make a lot of sense to skip on quality. The "Jump-in-Carry" rated high on reviews regardless of the unit. The basic difference in their models is size and starting capacity roughly translating into battery size. While I did not need a large unit capable of starting large trucks bigger battery capacity does translate into more reserve starting power and more important to me could be somewhat discharged (if you forgot to charge) and still work for my application. Consequently, I tried to stay in the middle of the pack as far as "cranking" amps was concerned. Additionally, the larger (typically two battery units) got to be pretty heavy and not really portable. The closest competitor to this unit is the 660 with 660 amps of cranking power at about half the price! The reason I bought this unit is as follows. 1. 770 cranking amps vs 660 or close to 20% more. 2. 68" cables vs 46" cables. These were the longest cables I could find on a portable unit. Most were 46" or shorter. Even at 46" in most applications I suspect you would be trying to find a place under the hood to balance the unit. At 68" the unit will sit on the ground or at least give you more options as to placement. 3. Size wise by volume it is over 30% smaller than the 660 and weighs about 1/4 pound less even with the longer cables. Additionally it is only 4" thick which opens up many areas for storage that might not be possible with the 660. While this is highly subjective I also figured the black case would show less wear and tear over time. If none of the above is important to you the 660 should work well. If it is I would opt for this unit and not look back. I also ordered a 1 foot cord that is tied to the unit and will be a dedicated charging cord so I don't have to scurry one up at recharge time. Update: Received this unit today and it looks bullit proof! Even though I bought it because of the smaller size I was still surprised at how small it was. Large screen portable PC's would have about the same foot print. Unit is slim at only 4 inches but will still stand upright on a flat surface. Unit will fit under and behind the back seats on an Avalance with some room to spare. Not mentioned in the information I saw is it does come with a 12V plug in and a male/male cord that can be used to recharge from the car plug if needed. Analog gauge on front is large, easy to read and "old school" no nonsense. Activates with the press of the red button and shows charge state. As arrived it showed in the green and ready to go so could have been used immediately. The one foot cord I bought while a touch tight will allow the unit to stand up against a wall and be plugged into a standard height wall outlet then plugged into its self and wrapped around the handle for storage. Unlike some of the "toy" jump boxes I saw at the local discount store this is a professionsl grade unit that should last most users a life time espcially since the battery can be replaced. NOTE: I recharged the unit per instructions for about 30 hours (24 hours would have done it). For this type of battery a full charge is slightly under 13 volts. Mine charged up to about 13.25. The volt gauge on the unit goes up to 16 volts and the middle of the "green" area is at about 13 volts. So do not expect the gauge to show all the way up in the green when fully charged. At proper charge the needle should show about the mid point of the guage which is about in the middle of the green.

If you are looking for a handheld jump starter that can handle both 12-volt passenger vehicles and 24-volt commercial equipment (semis, farm tractors, construction machinery), Clore Automotive is widely considered the gold standard. ​Key Specifications ​12V Mode: 3400 Peak Amps / 850 Cranking Amps ​24V Mode: 1700 Peak Amps / 425 Cranking Amps ​Cable Length: 46 inches ​Cable Gauge: #2 AWG Welding Cable ​Weight: ~40 lbs ​Battery: Twin "Clore Proformer" Batteries ​Higher Cranking Power: With 850 Cranking Amps in 12V mode, this unit has a slight edge in raw power over the Truck PAC model. It is the better choice for large displacement diesel engines that are cold-soaked in winter. ​Simple Interface: The voltage switch is a simple plug-in selector. You plug the main connector into either the 12V or 24V socket on the front. It is foolproof and physically disconnects the clamps when not in use. ​Durability: The case is molded from high-impact polyethylene. It is designed to be thrown in the back of a service truck. ​Serviceability: Like most Clore products, the batteries are user-replaceable. When they eventually die after a few years, you don't throw the unit away; you just buy a replacement battery kit. Overall great product for personal and professional use.

I work for a mobile mechanic for a landscaping & construction Company, we keep this unit in our service truck and we use it all the time from company vehicles all the way to our largest heavy equipment. this tool is a must have!

I purchased a JNC 660 a while back and so far so good for powering 12 V DC items through it's DC port. Thankfully I have not had to use it for jumpstarting any vehicle so the jury is still out as far as performance as a jumpstarter. I decided to purchase the much larger / higher battery capacity JNC 950. My JNC 660 arrived fully charged. This 950 arrived with the Battery Status Gauge showing a full charge of 13.5 V. I plugged a small portable CB radio with a CLA adapter into the DC socket on the side of this unit and to my surprise there was NO power at all. I tried a second small device in the DC socket and again NO power. I decided to charge the unit a full 24 hours as per the instructions through the AC wall plug.Once again NO power at the DC socket. Either the DC socket is defective or the Battery Status Gauge is defective or finally the battery may be defective. I have not tested the battery in this unit. Clore Manufacturing is closed on weekends so I have to wait until Monday morning to hear from them. Due to Amazon's Hazardous Material "NON" Return Policy they will not take the item back, which is ridiculous in itself because it is OK for Amazon to ship hazardous material to paying customers but it is not OK for customers to ship hazardous items back to Amazon for a refund ??? At the moment I am stuck with a $300.00 paper weight, not to mention the fact that it is going to cost me a small fortune to ship this garbage back to Clore. UPDATE: The people at Clore were very supportive and understanding about the issue with this unit. I sent it back and within one week I had a NEW unit with a working DC socket. The old unit had been shipped without a Negative(-)lead connected to the DC socket.