I bought the ZD-529 2000A Jump Starter mainly for emergencies, but it’s quickly become one of my favorite tools to keep in the car. This thing is a beast — it jump-started a completely dead battery with no hesitation, which is something smaller units I've tried simply couldn’t do. The built-in air compressor handled my car tires, basketball, and football without a problem. I also tested the 400W power inverter by running a fan during a hot day, and it performed great. The ability to charge my phone, tablet, and laptop — all while still having enough juice to jump-start my car — was a lifesaver on what turned out to be a pretty rough day. The solar panel is a nice touch. It won’t fully recharge the unit quickly, but it does help keep it topped off, especially useful when using the fan outdoors. There are a couple of downsides: it’s a bit heavy and takes up space, but honestly, that’s a fair trade-off for all the features packed into it. The flashlight works fine, but it’s fixed in one direction — not ideal if you need to light up a wide area, but it did the job when I had to change a tire at night. One final tip: it seems to hold up fine in light rain from my experience, but I’d recommend reading the manual before using it in wet conditions. Overall, this is a reliable, heavy-duty unit that does exactly what it promises. I’d highly recommend it for anyone who wants peace of mind on the road. Read more
Great all in one tool for the worksite, camp out, and emergency home/car moments. Large external battery - includes both USB and 400w charging ports. Box is rechargeable with included chargers for home and car, solar panel is also built into box for outdoor use. Perfect for charging phones and tools Emergency light (both spotlight and LED work lamp), car battery jumper cables, air compressor, and reflective hazard symbol built in makes it great to keep in car for any occasion. Helpful display details remaining battery life and Psi gauge for air compressor. Air compressor also includes heads for various tubes. Read more
Great item good for three jumps on my H2. Read more
Bought this to take camping. Turned into using for household as well. Very functionable.. Worth the money. Battery last a longtime. Jumper cables are so easy to use which I’ve used to jump lawn tractor with no issues. Air compressor works great for smaller size tires, works for larger ones but takes longer. Overall a great purchase. Read more
I thought the features were awesome and when it arrived, I was impressed with the perceived quality. However it looks on the outside, there are problems on the inside. The charging requirements were odd and necessitated that I timed and monitored the process but not a deal breaker. The first unit I bought, the air compressor didn't work. It started to pump up a tire then became sporadic, then failed completely, so I returned it in exchange for another of the same unit. The return was easy, and replacement arrived timely. The replacement unit had charging problems and would throw error codes during charging. It would only charge to 84% on initial charging cycle. On the replacement unit, the air pump wouldn't pump up a tire beyond 96psi. The unit claims to be rated for 260psi. My RV tires require 125psi which is one of the reasons I bought this unit. It is worth noting that the digital gauge only has two LEDs and no spot for a 3rd decimal. Thinking the remaining features may make it worth keeping, and a full draw down and recharge may correct the battery charging issue, problem with lead acid, I tested them. The solar charger is a joke and produced 0.5 watts per hour - if you can leave it in the sun for a year to charge that may not be a problem for you. The jump feature produced less than 100 cold cranking amps so may be ok for a lawn mower but had no way to jump start my RV generator nor anything but a small car on a warm day. I boondock and occasionally run my batteries down too low to start my generator, which was another reason I bought this unit. This made testing the remaining features a waste of time, so I have returned the second unit for a refund. Amazon is great about returns but it is still a pain and waste of time when a product doesn't work as advertised. In my personal opinion, I suggest you don't bother buying this unit. It's a shame because it has great features and appearance of quality, but in all likelihood, you'll end up returning it, or worse, have it fail on you when you need it. Read more
