EquiWatt-V2500 Residential Energy Storage All-in-One Unit, 2.5kW/4kWh (Wall-Mounted)

The EquiWatt-V2500 is the wall-mounted entry-level model in Changhong’s residential energy storage integrated system series. It has a rated output power of 2500W and a total energy capacity of 4019.2Wh (approximately 4kWh). It features 314Ah lithium iron phosphate batteries and comes with a built-in MPPT solar charge controller (with a maximum PV input of 2500W), supporting dual-input capability from both grid power and photovoltaic systems. Its pure sine-wave output, combined with an ultra-fast UPS switching time of ≤20 milliseconds, ensures that critical loads such as refrigerators, lighting, and routers continue to operate seamlessly during power outages. The wall-mounted installation design saves floor space, making it ideal for apartments, small-sized households, and single-family homes.

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Wall-mounted installation

430Compact 520×250mm body that can be wall-mounted without taking up floor space, ideal for apartments and small-sized homes.

4kWh lithium iron phosphate energy storage

314AhLFP cells, 6000 cycles (95% DOD), safe, durable, and long service life.

2500W Pure Sine Wave Output

Compatible with all household appliances—can power refrigerators, TVs, washing machines, lighting, and more.

Photovoltaic self-charging

Built-in MPPT controller, with a maximum PV input of 2500W (30–500Vdc); generates solar power during the day and uses electricity at night.

≤20ms UPS switchover

The power switch from mains to battery backup happens in milliseconds, ensuring the refrigerator stays powered and the router remains connected.

RS232 communication (RJ45 interface)

Supports local integration with inverters and EMS to enable data collection and system interconnection.

ApplicationApplication Scenarios

Apartment/Small-Unit Family

Wall-mounted installation saves space, and standby time at night is approximately 10.7 hours.

Household power supply for daily use

Combined use of TV, lighting, refrigerator, and router for approximately 2.7 hours.

Air conditioning scene

Drives a household air conditioner for about 1.5 hours.

Household photovoltaic self-consumption

Charges with solar energy during the day and runs on battery power at night, reducing electricity bills.

Emergency backup power for power outages

Ensure uninterrupted power supply for critical loads such as refrigerators, lighting, and mobile phone charging.

Small single-family home

Achieve energy self-sufficiency by integrating with a photovoltaic power generation system.

ReferenceUse time reference

The above data were obtained by our internal laboratory under specific environmental conditions. Actual usage duration may vary depending on factors such as load type, ambient temperature, and battery condition; please refer to actual testing results for accurate information.

Use case	Battery life
Nighttime standby (low-power devices such as routers and security cameras)	Approximately 10.7 hours
Household appliances for daily use (combined appliances such as TVs, lighting, refrigerators, etc.)	About 2.7 hours
Air conditioning scenario (driving high-power devices such as household air conditioners)	About 1.5 hours
Full-load operation (2500W rated output)	About 1.3 hours

ParametersTechnical Parameters

Basic parameters

Parameter	Specifications
Product Model	EquiWatt-V2500
Product Category	Household (Home) Integrated Energy Storage System
Installation method	Wall-mounted
Output power	2500W
Total energy	4019.2Wh (approximately 4 kWh)
Rated voltage	12.8V
Battery cell energy	314Ah (LFP)
Cycle life	6000Next (95% DO)D & EOL: 80% SOH)
Cabinet dimensions (width × height × depth)	430×520×250mm
Weight	41kg

Photovoltaic Input Parameters

Parameter	Specifications
PV maximum power	2500W
MPPT Maximum Voltage	500Vdc
Maximum charging current	100A
MPPT voltage range	30~500Vdc

Communication input parameters

Parameter	Specifications
Rated voltage	230Vacuum
Voltage range	90~280 VAC
Input frequency	50/60Hz (adaptive)
Maximum current	120A

Communication Output Parameters

Parameter	Specifications
Rated output power	2500VA/2500W
Rated voltage	230Vac±5%
Output frequency	50/60Hz (adaptive)
Output waveform	Pure sine wave
Switching Time (UPS Switching)	≤20ms

System parameters

Parameter	Specifications
Communication method	RS232 (RJ45)
Storage temperature	0~35℃
Operating temperature	-10~50℃
Humidity	<95% RH
Protection rating	IP21
Altitude	<2000m

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