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

This thing is nice. Quite powerful. I had a car that was discharged so much when you tried to start it, all the dash lights went out. Barely clicked. Connected this thing, energized it, walked around to the drivers side, got in and the car started right up. And not chug-chug vroom, but vroom vroom. Man that engine spun fast. I carry it all the time now.

I've purchased multiple boosters in the past as a matter of fact I have 4 different devices right now because I wasn't sure which was right for my situation but this booster has the starting position it has NEVER failed me because at one point I had to boost on the regular the others gave me a few issues but this one is like American Express and you know the rest.Get yours ASAP you won't be disappointed.

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.

Jumped a massive diesel box truck that had 3 low batteries when the other jumper packs wouldn’t. First time I got to use it and it was great.

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.

I bought it for my dad, I ended up needing to borrow it. Worked great, keeping this one. Ordered a new one for my dad.

Great item to own for those emergencies that leave you stranded.

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