Compare Solar Batteries & Manufacturers

Compare Fortress Power eFlex 5.4 vs Watts Battery Corp WBX 1.1

Model: eFlex 5.4

Manufacturer: Fortress Power

Warranty : 10 Years

Model Year: 2020

Battery Information

Model Year:

2020

Connection Type (AC or DC) :

DC

Chemistry :

Lithium Iron Phosphate

Audience:

Residential

Total Capacity :

5.374kWh

Usable Capacity :

5.374kWh

Power: Peak :

6.6kW

Power: Continuous :

3.5kW

Degradation :

7.0%

Roundtrip Efficiency :

98.0%


Warranty

Warranty :

10 Years

Warranty Cycles :

6000

Expected Life:

10 Years

Expected Cycles:

6000


Certifications

UL 1642:


Model: WBX 1.1

Manufacturer: Watts Battery Corp

Warranty : 10 Years

Model Year: 2020

Battery Information

Model Year:

2020

Connection Type (AC or DC) :

AC

Chemistry :

Lithium-ion

Audience:

Residential

Total Capacity :

1.2kWh

Usable Capacity :

1.2kWh

Power: Peak :

1.5kW

Depth of Discharge :

100%

Degradation :

7.0%

Roundtrip Efficiency :

95.0%


Warranty

Warranty :

10 Years

Warranty Cycles :

4000

Expected Life:

15 Years

Expected Cycles:

7000


Certifications

IEC 61000: