Base Power begins manufacturing 39.2-kWh residential battery in Texas

Base Power, a company that runs home batteries as part of a shared "virtual power plant" network, has raised $1 billion and started making its own battery in Austin, Texas. The new product, called Base Core, is a 39.2-kWh home battery using lithium-iron phosphate (LFP) chemistry, a type known for being stable and long-lasting. It's rated for 12 years of use and carries two safety certifications, UL 1973 and UL 9540, which cover battery performance and installation safety.

The company says Base Core installs in under an hour, switches over automatically during a power outage, and is built to handle extreme weather. Base Power is already making thousands of these units a month and plans to sell them first in Texas and Illinois, where it already runs a fleet of home batteries totaling more than 500 megawatt-hours under contracts that let it draw on customers' stored power to help balance the electric grid.

For homeowners in those two states, this means a new battery option is entering the market, with a claimed fast install and extended backup power during outages. Base Power has raised over $2.5 billion total and plans to use the new funding to expand Core to more homes and eventually into other states, though no timeline or pricing for that broader rollout is included here. If you live outside Texas or Illinois, this battery isn't available to you yet, but it's a sign more homeowners may have access to it down the road.