Zach Dell and Base Power shared posts announcing the launch of Base Core, a 39.2 kWh residential battery built in Austin. The posts also described a $1 billion Series D round. Multiple investors including Katherine Boyle, Brad Gerstner, Elad Gil, Jamin Ball, Packy McCormick, Patrick O'Shaughnessy, David Lee, and Michael Dell reposted or quoted the announcement. One visible retweet referenced Ribbit Capital. Product specifications and funding details appear only in the company and founder posts.