Jackery saved my bacon last weekend. I'm so glad we have it
First real camping this season. New to me Engel MT40 fridge mistakenly set a little cool so I had slushy drinks. Because of this and with temps in the low-mid 80's so the fridge was working harder than usual and it drained my battery in 24hrs to where it wouldn't start my FJ. I had left my Cig Lighter cable for the fridge at home by mistake and thankfully I had the 110V AC cable in the pocket of my fridge cover so I ran the Engel off the Jackery using the 110V AC. My Fridge is hardwired to the FJ's starting battery.
We had already charged both our phones once, and the Jackery was down to 91%. (It started out at 98%) After running for 8hrs it was down to 68% and we were simultaneously charging our phones at one point. I also charged up my portable jump pack that I used to jump the FJ after killing the battery. I could have left it on the Jackery, but we just turned the fridge off when we went to bed like we do sometimes anyway.
In the end after running the fridge for 8hrs off AC, and charging our phones a few times plus the portable jump pack we were down to 58%.
This thing is worth bringing on every trip.