eVault MAX 18.5 kWh​ | Whole-Home Power, Built to Last

A high-capacity 48V LFP battery designed for whole-home backup, seamless integration, and long-term energy independence — with 18.5 kWh of reliable storage.

eVault MAX 18,5 kWh

Built to Last Whole-Home Power

The eVault MAX 18.5 kWh is Fortress Power’s most advanced 48V lithium iron phosphate (LFP) battery, delivering whole-home and light commercial energy storage in a compact, all-in-one design. Scalable up to 370 kWh, it’s ideal for applications ranging from off-grid living and backup power to solar self-consumption and peak demand reduction.

Engineered for simplicity and performance, the eVault MAX features AC and DC coupling options and a serviceable top-access design that makes installation faster and more reliable. Whether you’re powering a home, small business, or critical backup system, the eVault MAX offers the safety, capacity, and flexibility to get the job done.

Aplicaciones

Residencial

Light Commercial

FEATURES

  • High-Capacity, Scalable Storage

    Delivers 18.5 kWh of energy storage, scalable up to 370 kWh, making it ideal for whole-home backup, large residential projects, and light commercial applications.

  • Long-Lasting Performance

    Engineered for durability with 8,000+ cycles at 80% DoD, the eVault MAX ensures dependable, long-term energy storage and lower lifetime costs.

  • Exceptional Efficiency

    Operates at up to 98% round-trip efficiency at 0.5C, maximizing energy savings and performance across a wide range of usage scenarios.

  • Smart Battery Management System (BMS)

    Equipped with a digital BMS for cell-level monitoring, automatic balancing, and enhanced safety — ensuring consistent, optimized operation.

  • Versatile Climate Resilience

    Built to perform in extreme environments with a discharge temperature range of -4°F to 140°F, ideal for both hot and cold climates.

  • Certified for Safety & Compliance

    Fully compliant with UL1642, UL1973, and UL9540 safety standards, ensuring peace of mind and simplified permitting and inspection processes.

  • Installer-Friendly Design

    Features top-cover service access for easy installation and maintenance, reducing labor time and minimizing installation errors.

  • Integrated Display & Smart Connectivity

    Includes a built-in LCD touchscreen for real-time performance metrics and supports closed-loop inverter communication for seamless energy management.

PRODUCT INFORMATION

Energía total (kWh)18.5
Capacidad[Ah]360
Tensión nominal [V]51.2 (48)
Rango de tensión[V]48-55
Corriente de carga recomendada [A]150
Máx. Corriente de carga (continua)[A]180
Máx. Corriente de descarga (continua)[A]180
Máx. Corriente de impulsos (durante 10 segundos) [A]200
Temperatura de carga [F]32 a 120
Temperatura de descarga[F]14 a 77
Dimensión [H x W x D, pulgadas]20,3 x 20,3 x 42,2
Peso[lbs]520
Grado de protección de la cajaIP55
Opciones de montajeDe pie
CertificadosUL 1642, UL1973, UL9540
Garantía10 años
EscalabilidadMáximo 20 en paralelo (370 kWh)
ComunicaciónCAN/RS485
Interruptor automático de alta corriente250A
Eficiencia>98%

VIDEOTECA

PRODUCT COMPATIBILITY

Fortress Power Envy Inversores

The eVault MAX is easy to pair with your favorite third-party inverters with a simple click.

Monitor and control your eVault MAX 18.5kWh. Anywhere! Anytime!

✅ Supervisa el rendimiento de cada batería

✅ Actualización de firmware por aire

✅ Participar en programas de centrales eléctricas virtuales