JS3000 12V 3000A Battery Booster Jump Starter Pack for Up to 9L Gas/ 7L Diesel Engines, Portable Car Battery Charger with Handle Jumper Cable and EVA Protection Case

I ordered this jump starter /power pack on the advice of a high end auto shop owner. He uses this jump starter in his shop. Everyone who owns a newer computerized vehicle needs to replace there jumper cables with this unit. Using jumper cables on today's vehicles runs a high risk of creating a voltage spike that can damage the cars computer controls...a very costly repair! This unit has circuitry that prevents voltage spikes, this is the reason professional shops use these. This is a quality unit is well made, compact with a nice carry case. It has the power, when fully charged, to start most vehicles including most diesel pickups. It will also charge cell phone. This is a good buy and should be in every vehicle.

Awesome company to work with, would definitely recommend them to anyone I know. The js3000 seems well built and it’s able to start my diesel tractor without any hesitation, best part is that it’s a lot slimmer then the one I keep in my truck. Also if you’re in the market for a larger one topdon offers a V4500 jump starter that’s an absolute beast! That one outperforms my tool truck one that I own in so many ways and the best part is that the top don is a fraction of the weight compared to my tool truck one

Money well spent with a cabin off the grid used it for my side by side and my tractor many times since neither pieces of equipment we're running great or had the best batteries in them. Got many jump starts before having to recharge unit.

This bumper box is awesome for the most part. It’s compact enough to carry anywhere- fits under a seat or in a trunk no problem. Like stays on the top of my tool box. Cable length is long enough to reach even heavy duty top wing nut batteries. It works, and it works AMAZINGLY WELL. Attach the cables and the unit auto detects the battery. If it’s low, hold the boost button and start the vehicle. You have about 15 seconds of start time before the boost feature disables.The limited boost time is one of the things I don’t like about it. The jump pack stops throwing voltage after the boost cycle, meaning that if the battery doesn’t have enough charge, everything shuts off. It would be nice to have a fast charger to come with it.That being said, this thing is an awesome value for the money. It started a completely dead 6.7 powerstroke f450. I mean completely dead- oth batteries had 1.5 volts. It started a 7.3 powerstroke that has been sitting on the lot for 5 years. I had to use the pack twice, because the first time was just for fuel priming. Started the truck up both times without issue. If it’ll do that old 7.3, it’ll do any regular vehicle you want it to. It also has emergency lights, and can double as a power pack.

I bought this for $135 after the $100 GooLoo branded jumper failed. This is less expensive than the NOCO and works great. It successfully jumped my 7.3l diesel 3 times with batteries at 7.5V. Each time within a minute the truck stopped, even with my foot on the pedal. I don't the alternator could handle the load. After 3 maybe 4 times the TOPDON had a red blinking light and 4 blinking blue lights. My only complaint about this device is the instructions don't provide much info. I think the TOPDON battery was dead and overheated at this point. An hour later red light was off and I was able to start charging the TOPDON back up. My trucks batteries were at 9.5V now. It just took one jump and my foot on the pedal for a minute for the truck idle and start charging properly. TOPSON has 25A% 50% battery lights on. No nice display that tells you what going on better but that's a fine trade off for me at this price point. This might be the only jump starter at this price point that can jump and F350 7.3L diesel that drained down to 7.5v.

Best portable charger

I love having the peace of mind this jump starter gives me. I have used it numerous times to help others and they are also impressed. It’s easy to connect to vehicle and starts on first try. I bought 4 more, one for each of my adult kids to carry in their vehicles.

Works perfectly for everything I use it for never had any issues