Fortress Power

Power Batteries
& Hybrid Inverters

Explore Fortress Power Products

eFLEX MAX electronic device on a white background

Fortress eFlex Max 5.4 kWh 51.2V eFlex Max Battery

MPN No: eFlex Max 5.4 kWh

Expected ship date Jan 16 - 23

In Stock

~~1,899.00~~ -23%

$1,449.00

Fortress Power eForce 9.6kW Stackable 48V 9.6kWh Outdoor Lithium Battery

MPN No: eForce 9.6

Expected ship date Jan 16 - 23

In Stock

$3,645.00

Fortress Power eBoost battery unit with front display panel and wheels, designed for residential and commercial energy storage.

Fortress Power 16kWh eBoost LFP Battery

MPN No: eBoost 16 kwh

Expected ship date Jan 16 - 23

In Stock

$3,445.00

Fortress Power electronic device on a white background

Fortress Power Envy 10kW Envy10 41.6A 240V Hybrid All-in-One Whole Home Inverter

MPN No: Envy10

Expected ship date Jan 16 - 23

In Stock

$3,819.00

Fortress Power Plug-and-Play Solar Storage System featuring the Envy 12 kW hybrid inverter, eForce 9.6 kWh battery, eWay base, and Guardian Gateway for smart monitoring and extended 15-year battery warranty.

Fortress Power Bundle - Envy 12kW - eForce 9.6 kWh - eWay and Base - Guardian Gateway (Extended Warranty)

MPN No: Envy-12K eForce 9.6

Expected ship date Jan 16 - 23

In Stock

~~9,821.00~~ -10%

$8,799.00

Fortress Power Solo 6.5kW Off Grid Solar Hybrid Inverter EV 6500-S

MPN No: EV 6500-S

Expected ship date Jan 16 - 23

In Stock

~~1,695.00~~ -8%

$1,549.00

Fortress Power Envy 8kW Envy8 33.3A 240V All-in-One Whole Hybrid Home Solar Inverter

MPN No: Envy8

Expected ship date Jan 16 - 23

In Stock

~~4,648.99~~ -24%

$3,499.00

Fortress Power Envy 8kW All in One Hybrid Inverter + 2 eFlex Max 5.4 kWh Batteries Combo

MPN No: eFlex Max 5.4 kWh + Envy 8 kW

Expected ship date Jan 16 - 23

In Stock

~~6,537.38~~ -8%

$5,969.00

Fortress Power Envy Duo 21 16kW Whole Home Solar Hybrid Inverter Envy Duo 21-US (16KW)

MPN No: Envy Duo 21-US (16KW)

Expected ship date Jan 16 - 23

In Stock

~~5,398.00~~ -6%

$5,065.00

Fortress Power is an industry leader in advanced lithium iron phosphate battery technology. Designed for efficiency, safety, and scalability, Fortress Power batteries integrate seamlessly with leading inverter brands for a complete solar energy storage solution. Perfect for residential, commercial, and critical backup systems.

Scalability and Modular Design
Intelligent Battery Management System (BMS)
Seamless Inverter Compatibility
Compact and Space-Saving Design

Why Fortress Power Stands Out

Advanced Integration

Fortress Power systems are designed for seamless integration with solar energy systems and grid connections, including smart energy management capabilities.