Overview
| Brand | COSENG |
| Product Dimensions | 3.46″D x 2.17″W x 7.09″H |
| Item Weight | 2.2 Pounds |
| Amperage | 3500 Amps |
| Peak Output Current | 3500 Amps |
- POWERFUL PORTABLE JUMP STARTER: Reliably jumpstart 12V batteries for cars, trucks, motorcycles, lawnmowers, SUVs, snowmobiles, boats, and more—even in extreme temperatures (-4°F to 140°F). With a high-performance 10,000mAh lithium battery capable of 2000+ charge cycles, the Coseng J26 supports up to 6.0L diesel and all gasoline engines, ensuring dependable power for every emergency.
- SMART JUMPER CABLES WITH 10 SAFETY PROTECTIONS: Including reverse polarity, anti-spark, short-circuit, and reverse charging prevention—with real-time visual alerts. A unique 3-second manual override button activates DC mode when automatic detection fails, ensuring safe and foolproof use for car owners and professionals alike.
- FAST & PRECISE AIR PUMP: Built-in 150PSI air compressor quickly inflates car, motorcycle, and bicycle tires with precise digital pressure monitoring. It offers 4 preset inflation modes and 3 pressure units (PSI, KPa, Bar). Simply set your desired tire pressure, and the portable air pump inflator automatically stops at the preset value, ensuring convenient and accurate inflation during travel and outdoor adventures.
- 500-LUMEN LED LIGHT WITH 3 MODES: This portable car starter features a 500-lumen LED lamp that can illuminate continuously for up to 72 hours. It offers three lighting modes (flashlight / SOS white strobe / red-blue strobe) to handle different emergencies and can serve as a warning triangle for enhanced road safety.
- MULTIFUNCTIONAL PORTABLE POWER BANK: More than just a jump starter, the Coseng J26 doubles as a reliable power bank, conveniently charging smartphones, tablets, and portable devices—keeping you powered during camping, hiking, and all outdoor activities.
- USAGE TIPS & RELIABLE WARRANTY: Fully charge your Coseng J26 upon initial receipt, even if the indicator shows a full battery. For optimal results, jumpstart your vehicle when battery capacity exceeds 75%, and recharge the jump starter every 2-3 months to maximize battery lifespan. The J26 includes a 2-year free warranty, lifetime technical support, and dedicated 24/7 customer service.
what our customer say this product:
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kenliang Verified Buyer –
This jump starter is really good, its size is smaller than normal jump starters, making it portable. It also is very lightweight making it easier on you. I recommend this for people who don’t want to deal with big jumpstart starters.
Jason Smith Verified Buyer –
My tesla model x tire pressure often go lower during the winter time. This little machine comes in handy since its cordless. I have only used it for tire inflation mode. Light and compact.
Star Gazer Verified Buyer –
This is a good quality tire inflator / battery jumper. Fortunately, I do not have a dead battery so I cannot test the battery jumper function, but it did add 6 psi to a tire on my truck quickly and easily, though it seems louder than my 30 year old Craftsmen tire inflator. The quality seems OK, and I say that because the plastic shell doesn’t seem as strong as other similar items I have used. It does come with the accessories you need to jump start a car or inflate a tire and a very nice storage case that fits all of the included items. It is very easy to use and it is always nice to have a tool like this handy when you need it.
On a side note, I have seen other reviews give bad ratings due to the high cost. I received this item free for my unbiased review. When I ordered it, it was $169.99. As I type this review, it is $99.99 with a 20% coupon, which brings the price down to $79.99. I agree that $169.99 is rather high for this because the plastic makes it feel rather cheap, but I think it is a nice deal for $79.99.
Alex Cheng Verified Buyer –
This portable jump starter is easy to use. The built-in air compressor comes with preset pressure levels for car, motorcycle, and bicycle tires; and one can set custom pressure levels as need be. Also, it is a handy power charger for cell phones and other devices. And it comes with a built-in flashlight with emergency flash features.
It is compact and comes with a portable case. It won’t take up up too much space in the car; no bigger than a box of tissue.
Katie Verified Buyer –
This is definitely something you could use in a pinch if out on the open road, but the need to charge it every 2 months to keep it fully prepared for any event such as a road trip, is kind of a pain. Hope I don’t forget this task.
It is very loud, so much so, that it would not be pleasant to inflate anything larger than a ball. In my garage the sound is deafening, but outside on an open road, it would not be so due to sound dispersal. The air compressor hose is very small, but then it has to be if it needs to fit in the case. The case is perfect to store it in nice and neatly. The charging cord lacks a charging block, so I have to find one of those. You can’t charge the unit without one and they failed to put this in the description.
It offers a light with an emergency beacon, but when using it for something on the car it can’t be on. I’ll hope for the best in jump starting my car, but since I just replaced my battery, it is going to be awhile. This part of it I cannot test. Price point wise, I have seen similar items offered for far less money.