BIWATT Expands Sodium-Ion Energy Storage Portfolio with UL-Certified NFPP-Based R5 and I3 Batteries
MUNICH, June 24, 2026 /PRNewswire/ — BIWATT today unveiled its new PowerNest R5 residential storage battery and PowerLake I3 commercial and industrial storage battery at Intersolar Europe 2026, expanding its sodium-ion energy
