Tesla TSLA hit a major milestone in its push for battery innovation. The electric vehicle (EV) and tech titan claims that its in-house production of 4680 battery cells is now more cost-effective ...

The battery company, which has primarily focused on portable batteries for smaller products, announced its new Solix X1 system, which could rival Tesla's Powerwall for residential energy storage.

Tesla TSLA hit a major milestone in its push for battery innovation. The electric vehicle (EV) and tech titan claims that its in-house production of 4680 battery cells is now more cost-effective than ...