I left my “less driven” Ford Fusion parked for 8 months. I expected I would need my GooLoo. Opened the box and the GooLoo was still at 100% charge, even after 6+ months. After some efforts to just get inside the car to open the hood, I attached the booster, dead battery , so I pressed BOOST. The Ford spun very fast and started right up! Then, it stopped running and I heard the GooLoo beeping. It was in a current overload state. I reset the GooLoo and started the car, 10 seconds later, it stopped again and the booster was beeping. Over heated, needing 10 minutes to “rest” and reset. I NEEDED A SOLUTION, ON BOARD, FOR THIS PROBLEM! Something I could leave in the car, just in case. After much research, I selected this higher amperage Lithium Ion type of portable booster. I tested the GooLoo 3000 GT on it. The battery had drained to 7.5vdc (dead battery). Using boost override, overheating, 10 minutes, boost again, reset, boost again, and finally, after the GooLoo had “charged” the battery sufficiently, the big SUV started. 25 minutes later, there was about 30% remaining in the GooLoo! I then put my standard battery charger on the car to charge overnight.

GOOLOO GT3000 Jump Starter 3000A 100W 2-Way Fast Charging GOOLOO GT3000 Jump Starter 3000A 100W 2-Way Fast Charging

If you're planning on starting huge ancient diesels, you're going to want more jump starter. Photo credit: David Traver Adolphus / AutoGuide.com X” + Beeping: Polarity is reversed. Ensure the clamps are connected to the correct battery terminals [Red clamp with car’s red or plus (+) terminal]The main advantage of the G1500 is the improved Type-C charging port. This lets it charge a wider range of devices, including Chromebooks, MacBooks, and handheld gaming systems. This might not be related to jumping cars but it’s still useful. Giving your kid the option of charging their Switch on a long road trip can be a lifesaver, for example.

GT3000 + Box – GOOLOO Bundle GT3000 + Box – GOOLOO

I spent the extra so I could use on tractors with diesel engines. Should not need on my 300 hp big tractor for a while since batteries are fairly new. I did use it on a 10 hp diesel and it worked well. Boost Test: GT3000, T8 Apex, GB50, and GB40 were able to start my V6 engine SUV (3.5L gas) just fine As you can see, there are some things you’ll get from any GooLoo model. The main difference between models at different price points is the capacity and peak amp rating of the battery. Having said that, this GooLoo jump starter won’t work for everyone. Its peak amp rating is on the low side at 500 amps. That’s enough to start a car most of the time, but it can’t provide enough power for 8-liter engines.

Here’s another option for people with bigger vehicles. The GT1500 is very similar to the GT1500-plus. It has the same slim build and 1,500 peak amp rating, so it’s just as portable and powerful. They’re so alike, at first glance, it might seem the only difference is the color. Reverse-polarity protection: Having the clamps touch each other does nothing. They are quite fool-proof (except when “Boost” mode is activated)

GT3000 Set – GOOLOO 100W Two-Way Charging GT3000 Set – GOOLOO

So, I attached traditional booster cables, and discovered that the Ford battery was COMPLETELY DEAD, no voltage and no spark! I let my new car “charge” the Ford for about 30 minutes. I went to start it, and it turned over much slower than when I boosted it with the GooLoo, but this time, it remained running. Included (female) cigarette port cable surprised me: Powered my car freezer (although it would theoretically only last up 1-3 hours) The high power of 4000 A peak current will support ALL engines of gasoline and 10.0-Liter engines of diesel at best. With it, you can jump start cars in seconds without anyone else's help. WIDELY USED IN ALL YOUR 12V VEHICLES Coincidentally, 1 day after receiving this GooLoo booster, my next door neighbor left their SUV, not driven for 2 months, run down its battery. So, it really works! Having the actual booster battery status is a real advantage as well. I now carry the 3000GT with us when we travel, just in case.You can think of the GP2000 as the big brother of the GP4000 reviewed above. It uses a similar slim design that, though a bit bigger, is still a very portable charger. The biggest difference is that the GP2000 gives you more power (and costs a little bit more).