Enphase AC Battery

The Enphase AC Battery, part of the Enphase Storage System, is an energy storage system that saves the energy produced for use late in the day when the sun is not shining. The Enphase AC battery installation is a simple process (see under Videos). It is also safe, very reliable, and provides the lowest lifetime energy cost for both new solar customers and retrofit customers. As an installer, you can design the right system size to meet the needs of the homeowner.

SKU B280-1200-LL-I-US00-RF0 Categories , , ,

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Product Specifications
Manufacturer Enphase Energy
Model B280-1200-LL-I-US00-RF0
Rated Power Output [W] 1200
Warranty [Years] 10
Inverter Type Grid-Tie Microinverter
Maximum/Peak Efficiency [%] 97.3
CEC weighted efficiency [%] 96.0%
AC Power Rating [W] 280
Nominal AC Power [W] 270
AC voltage range [V] 211 — 264
AC grid frequency [Hz] 60
Nominal AC Voltage [V] 240
Standby Consumption [W] 1.2 kWh
NEMA Enclosure Rating Indoor – IP20 / NEMA 2
Cooling Method Natural convection – No fans
Ambient Temperature Range [°C(°F)] -20ºC to +65ºC
Display Monitoring: Enlighten Manager and MyEnlighten monitoring options
Communication Power line
Communication Power line
Basic Warranty [Years] 10
Compliances UL 991, UL 1642, UL 1741, UL 1973, UL 9540; UN 38.3
AC grid range [Hz] 57 — 63

Additional information

Weight 55 lbs
Dimensions 15.4 × 12.8 × 8.7 in



Enphase Energy is a leading provider of solar energy products, specializing in microinverters and energy storage systems. The company's flagship product, the Enphase Microinverter System, converts DC power from solar panels into AC power for use in homes and businesses. This innovative technology allows for greater energy efficiency, flexibility, and reliability compared to traditional string inverter systems. Enphase also offers energy storage solutions, such as the Encharge battery storage system, that allow customers to store excess solar energy for use during times of high energy demand or when the sun is not shining. With a commitment to sustainability and innovation, Enphase is a trusted brand for solar energy solutions.


ENPHASE AC Battery Features:
Model Number: B280-1200-LL-I-US00-RF0
Capacity: 1.2kWh
Depth of discharge: >95%
Roundtrip cell efficiency: 96%
Peak output power: 280VA
Nominal voltage/range: 240 / 211 — 264 VAC
Nominal frequency/range: 60 / 57 — 61 Hz
Max 14 units per 20A branch circuit
10Yr Warranty

The Enphase AC Battery is an integrated energy storage system that delivers high performance, superior reliability, modular architecture, and safety. Enphase’s MyEnlighten monitoring lets you see how the Enphase AC Battery is working in conjunction with the rest of your Enphase system.

• Quick and easy single person installation
• Plug and play installation
• Interconnects with standard household AC wiring

• No high voltage DC in system
• Cells safety tested and certified by TÜV Rheinland
• Prismatic cells are highly stable over time

Greater Reliability
• Lithium iron phosphate (LFP) chemistry for long cycle life
• 10-year warranty
• Modular design promotes redundancy