Has anyone here considered building their own Lithium Ion battery pack? I look at the Jackey 1000 and Yeti 1000X and they both are fine products, with Yeti having more attractive features (Anderson power pole output), and they both come with inverters that I don't want built-in. They also have other bells and whistles that won't do me much good for an imaging trip.
I had built my own battery pack back when I started about 3~4 years ago. Each one of them had a deep cycle AGM battery in it and the box had many ports and switches built-in for various functions. Now, of course, the batteries are out of the box, the boxes are in the garage, and I am happily just using them directly connected to my Rigrunner.
I know there is the new Phosphate version of the Lithium Ion battery packs that is longer lasting in terms of number of charging cycles are concerned, and they are heavier than the ordinary Lithium Ion batteries.
There are a lot of videos on YouTube on DIY battery packs, and I am tempted to try one out. If anyone here has actually built one I'd appreciate knowing about the experience and the resources.