I had high hopes for this GB150 as its the pretty much the biggest most expensive $300 unit noco sells and it looks and feels like it's quality, but it just doesn't have the power to turn over my 7.3 liter f350. The truck batteries weren't even dead just slightly drained and cold from not having been driven in a week. I tried to turn over the truck with this jump pack several times both in the early morning and waiting till the afternoon for things to warm up and it just doesn't have the power to jump the truck. I finally gave up and had to pull my other truck around and use jumper cables and she fired right up. Maybe for small gas engines this unit would work well but not for a big diesel like they advertise.
Update: Now the flashlight no longer works, I wish I could give this negative stars
Update: I've had the unit for 11 months and only used it maybe 9-10 times tops and it no longer charges, so now it's just an expensive paperweight. I've contacted noco customer service, so let's see what they can do, thankfully its right before the warranty expires.