https://www.gamespot.com/articles/battlefield-5-open-beta-start-dates-pre-loading-an/1100-6461271/

Fans eager to check out Battlefield V won't have to wait much longer, as EA has announced the game's open beta start date. Battlefield V's open beta is scheduled to start at the beginning of September, but those who pre-order or are members of Origin Access Premier, Origin Access Basic, or EA Access getting two whole days to play before everyone else.

Battlefield V's open beta will kick off on September 4 for those who pre-order and/or are subscribers of EA's services, while everyone else will get access to it on September 6 on all platforms. The open beta will feature the new Rotterdam map for Conquest, as well as the Arctic Fjord map for both Conquest and Grand Operations. Pre-loading for the open beta starts on September 3.