Langhorne, PA – August 5, 2025 – Fortress Power, a prominent innovator in advanced battery energy storage solutions, has announced the launch of an industry-leading 15-year limited warranty for its eForce battery when integrated into the complete eForce Energy Storage System (ESS). This unprecedented warranty coverage applies to customers who install the full Fortress Power solution, encompassing any eForce battery, the Envy inverter, and the Guardian Gateway, signaling a significant enhancement in market confidence and product longevity for residential and commercial applications.

This new warranty offers unparalleled protection, covering the system for up to 15 years or 8,000 discharge cycles at 80% depth of discharge (DoD), whichever occurs first. This extensive coverage surpasses the standard offerings of most industry competitors, underscoring Fortress Power’s commitment to delivering enduring value and reliability to its clientele. Jing Yu, CEO of Fortress Power, stated, “Our core mission has always been to collaborate closely with our distributor and installer partners to provide clean, reliable energy to homes and businesses, simultaneously aiding them in reducing energy expenditures.” Yu further elaborated, “With this extended warranty, we are delivering more than just a power solution; we are offering profound peace of mind. We aim for every system owner to be confident that their investment is protected for the long haul, and our new 15-year coverage unequivocally reflects this commitment.”

The distinguishing features of this warranty include its 15-year duration, positioning it as the longest standard warranty period currently available for battery energy storage systems. Furthermore, the coverage is fully transferable to a new owner should the original purchaser sell the property, enhancing the long-term asset value. Its widespread validity across the United States, Puerto Rico, and the U.S. Virgin Islands ensures broad applicability and market reach.

Designed for superior power, performance, and scalability, the Fortress Power eForce ESS represents a next-generation all-in-one system. Each 9.6kWh Lithium Iron Phosphate (LFP) battery module is engineered to be stackable and weather-resistant, incorporating built-in heating elements for optimal performance in cold climates. The system’s modular design allows for up to 16 batteries to be combined, creating a robust 153kWh energy storage capacity. Seamless integration is achieved via the eWay, a specialized wireway featuring built-in busbars, conduit ports, and an emergency switch. The Envy inverter directly bolts onto the eWay, forming a streamlined and efficient tower. System monitoring and management are facilitated through the Guardian Gateway and a dedicated mobile application. Equipped with real-time LED indicators, fast-charging capabilities, and UL9540 certification, the eForce ESS is engineered for exceptional reliability and extended operational life.

Whether deployed in a residential setting or a small business, the Fortress Power eForce ESS is now backed by one of the industry’s most comprehensive and longest warranties, promising enhanced confidence, security, and significant long-term savings for system owners.