The Dyness Tower T21 delivers an impressive 21.3kWh of lithium battery storage in a space-efficient vertical design. Engineered with advanced LFP chemistry for extended cycle life and enhanced safety, this high-capacity energy storage solution provides reliable backup power during outages while optimizing renewable energy integration. Ideal for both residential and light commercial applications requiring substantial energy reserves.

The Dyness T21 battery system typically comes with a standard 5-year product warranty and a 10-year performance warranty (or up to 6000 cycles, whichever comes first). The performance warranty covers 70% of the original battery capacity.