Be careful about this item. The model I ordered was not the same model that I received. The model that is advertised on the Wal-Mart website is the delta 2 max 2048wh model number EFD 350. However, I received the model EFD 329, which is a lower capacity delta 2 max at 1900wh.
YES, THERE ARE TWO DIFFERENT VERSIONS OF THE DELTA 2 MAX.
I called Ecoflow about this issue, and they assured me that I received the correct model even though both the box and sticker on the unit said EFD 329. The box even said 1900wh in large font. They told me that it was just a printing issue, and that if I were to connect the item to the app, the app would state the correct capacity at 2048wh. I found that to be a really sketchy response, and I didn't trust it at all. As such, I returned the item right away.
The only reason I'm giving this review 2 stars is because of Wal-Mart's return policy. I started the return online, dropped off the item at the store, and was given a tracking number. The return process was very easy, simple, and no restocking fee whatsoever. Just be aware that refunds are not issued until Ecoflow receives the item.