The Delta 2 Lite from Walmart is entirely as advertised, full rated capacity at 950wh vs other resellers (incl Ecoflow themselves) selling the 1024wh, which is not actually not 1024wh at all. I've had a few of the 1024s and found them to be closer to 950wh. Walmart did a good thing for us consumers to have leverage to reduce cost by going with a higher yield cell pack, thereby reducing cost. My strong recommendation from my research and personal experience is to buy only from Walmart, as the 950wh is all that is being produced now but being sold as 1024 by everyone but Walmart.
Ecloflow is keeping the details on the down-low, which is disappointing -- I've had numerous discussions with Ecoflow direct with no transparency offered.
Please don't misunderstand, from my vast experience with this product, this is a high quality product from Walmart that will provide great value (cost/benefit) with long service life.