BatteryBlueprint
Back to Catalog
Premium ClassLiFePO4AC CoupledWhole-Home Backup CapableData Confidence: High

FranklinWH

aPower

FranklinWH’s aPower system is an AC-coupled juggernaut designed specifically to tackle whole-home backup without complex critical load panels. Paired with their aGate controller, it manages multiple energy sources, including generators, with ease.
Size This System for Your Home
Data verified 2026-05-12
Best Considered For
  • Whole-home backup scenarios without a critical loads panel
  • Retrofitting battery storage to any existing solar inverter
  • Integration with standby generators
May Be Less Suitable When
  • Small apartments or tight utility rooms
  • Users looking for native DC-coupled efficiency

Engineering Verdict

FranklinWH has engineered a highly capable ecosystem centered around their aGate smart controller. By processing the entire home's load through the aGate, the aPower battery appears suitable for true whole-home backup, intelligently shedding non-essential loads during an outage. The 5.0 kW continuous output is solid, and its ability to seamlessly integrate generators alongside solar sets it apart from many competitors in the premium tier.

Real-World Considerations

Because it is AC-coupled, it works with almost any existing solar inverter (SolarEdge, Enphase, SMA), making it a versatile retrofit option. The 13.6 kWh capacity provides a robust baseline, but managing heavy loads during a blackout still requires careful circuit prioritization via the app.

Installation Notes

The aPower unit is extremely heavy at 185 kg, requiring robust mounting hardware and a coordinated installation crew. The IP67 rating offers excellent environmental protection, but extreme temperatures will still affect long-term cell health. Verify clearance requirements for ventilation.

Technical Specifications

Usable Capacity

13.6 kWh

Continuous Output

5 kW

Peak Output

10 kW (10s)

Chemistry

LiFePO4

Official Sources

Links lead directly to official manufacturer or regulator documentation. BatteryBlueprint does not use affiliate links for hardware specifications.

Economics

Estimated Cost

$9,000 - $12,000

Reliability

Warranty

12 Years

Cycle Life (Est.)

6,000

End of Life Capacity

70% Retention

Certifications

UL 9540UL 1741
Physical Specs
Weight185 kg
Dimensions1150h x 750w x 290d mm
IP RatingIP67
Temp Range-20°C to 50°C
LocationBoth

Disclaimer: Battery specifications are provided for planning and educational purposes only. Always verify compatibility, certification, warranty terms, and installation requirements with the manufacturer and a qualified installer before purchasing. BatteryBlueprint compiles this data from publicly available datasheets and official manufacturer releases; specifications may change without notice or vary by local grid regulations.