30-Days Free Return

Lifetime Customer Support

Price Match Guarantee

Fortress Power eFlex Max 5.4kWh Lithium Solar Battery 48V 105Ah I Wall Mounted I 8000+ Cycles I 10-Year Warranty

  • Durable, Flexible and Scalable
  • Best Bang for Your Buck
$1,399.00 $1,599.00
Shipping calculated at checkout.

1x eFlex Max battery 5.4kwh
1 pair x Busbar (300A)
1x wall mount bracket
1x Busbar top and bottom cover
1x IP65 Battery-Inverter Comm Cable (9.8ft.)
1x IP65 Battery-Battery Comm Cable
40,000+ units sold
8000+ cycles
10-year product warranty

Fortress Power NEW eFlex MAX 5.4kWh LFP Battery

  • Features
  • Specification
  • Downloads
  • Video
  • Reviews

Discover the eFlex Max 5.4kWh 51.2V 105Ah solar lithium battery!

Key Features:

Proven track record: 40,000+ units installed, 8 years on the market, 1,000,000+ MWH guaranteed energy output

Industrial leading battery life cycle: 8000+ cycles, 15+ years lifespan with top-tier automotive cells.

Robust design: With salt water-resistant aluminum enclosure.

99% Efficiency: Enhanced performance in off-grid solar systems with 2W consumption.

Scalable capacity: Easily expand to fit your energy needs.

Sell Power with VPP: Earn money by selling extra power to the grid via Fortress Power’s Virtual Power Plant (VPP) platform.

Fortress Power eFlex Max 5.4kWh Best Home Solar Battery, Installation Units Proven Track
Fortress Power eFlex Max 5.4kWh Battery for Solar Off Grid with 2W Idle Consumption
Fortress Power eFlex Max 5.4kWh Solar Battery Installation, Less Install Time
Fortress Power eFlex Max 5.4kWh Residential Solar Battery with Inverter, Virtual Power Plant Ready
Fortress Power eFlex Max 5.4kWh Smart Solar Batteries, Monitor and Control Anywhere and Anytime

Make the Switch Today:

Upgrade to the Fortress Power eFlex MAX 5.4kWh LFP Battery and experience the benefits of advanced lithium battery technology. With its powerful performance, 15+ years lifespan, and robust design, it’s the perfect choice for anyone looking to build a greener, more efficient energy system.

Discover the future of energy storage—choose the eFlex MAX 5.4kWh LFP Battery —now available with a Wall Mount Kit included for easy installation.

Specification

Model

eFlex MAX

Total Energy(kWh)

5.4

Max. Charge Current (Continuous) [A]

100

Max. Discharge Current (Continuous) [A]

100

Nominal Capacity [Ah]

105

Voltage Range [V]

48-55

Charging Temperature [F]

32 ~ 114

Discharging Temperature [F]

-4 ~ 131

Storage Temperature [F]

20 ~ 95

Dimension [L x W x H, inch]

17.5 x 24.2 x 7.2

Weight [lbs]

108

Life Cyclesv

8000 @ 80% DoD

Round Trip Efficiency

>98%

  • eFlex MAX - Installation & Commissioning

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)