I got in on Ceenr's Kickstarter and…
I got in on Ceenr's Kickstarter and watched as they followed up on results from YouTuber's tests, they adjusted and fine tuned the battery. Then I finally got to use the battery, it's worked perfectly for powering tools, and a small herd of USB devices. The build quality is very solid, and their electrical connections are large and robust. I'm very happy with this portable workhorse of a battery. They're also a very responsive company if you need to contact them.