LFP ESS Energy Storage System 51.2V 20.88kWh Residential Solar ESS

Price Negotiable

Price: $3000-3200

MOQ: 1

Delivery Time: Negotiable

Product Description

20.88kWh Wall-Mounted ESS with LFP Battery and 20ms Grid Transfer

This all-in-one wall-mounted home energy storage system serves as a complete energy hub, scaling from 20.88kWh capacity. It integrates both inverter and PV input capabilities, optimizing solar self-consumption for residential applications. The system provides reliable power security for villas and home offices, with rapid 20ms switchover to backup power during grid failures.

Key Features

Cost-Effective & Durable: Utilizes Lithium Iron Phosphate (LiFePO4) technology with cycle life up to 6000 cycles, supporting daily use for over 15 years while reducing long-term operational costs.
Single MPPT PV Input: Supports up to 5kW PV input with MPPT range of 150-500V, compatible with most photovoltaic modules.
Adjustable Power Factor: Power factor adjustable from 0.8 leading to 0.8 lagging for compatibility with various grid requirements.
High Efficiency & Low THDi: Output THDi <3% ensures high power quality, safe for sensitive electronic equipment.
Fast Grid Transfer: 20ms grid transfer time ensures uninterrupted operation of critical appliances.
Smart Communication: Supports CAN/RS485 communication for integration with energy management systems, enabling remote monitoring and O&M to improve management efficiency.
Modern Design: Wall-mounted design saves floor space and simplifies cleaning.

Wall-mounted home energy storage system installation diagram

Technical Specifications

Battery Data

Model	W5-20K
Cell Chemistry	LFP/102Ah
Rated Energy	20.88kWh
Pack Configuration	4P16S
Rated Voltage	51.2V
Operating Voltage Range	44.8-57.6VDC

PV Input

Max. PV Input Power	5,000W
Max. PV Input Voltage	500V
MPPT Voltage Range	150-500V
Start-up Voltage	370V
Number of MPPTs	1
Max. PV Input Current per MPPT	60A

AC Input & Output

Rated Input/Output Power	5,000W
Rated Input/Output Voltage	220V/230V/240V (Adjustable)
Rated AC Frequency	50/60Hz
Max. Output Current	22A
Total Harmonic Distortion (THDi)	<3%
Power Factor	0.8 Leading to 0.8 Lagging
Grid Transfer Time	20ms
Grid Connection	Single Phase

General Data

Dimensions (W×D×H)	600×163×1,705 mm
Weight	202.4 kg
Altitude	4,000m (Derating above 1,000m)
Display	LCD Display
Safety Protection	High/Under Voltage Protection, Short Circuit Protection, Overload Protection
BMS Communication	CAN/RS485
IP Rating	IP21
Operating Temperature	-15~60℃ (Battery: 0~40℃)
Relative Humidity	20%~95% (No Condensing)
Cycle Life	6,000 Cycles
Installation Method	Wall-Mounted
Certifications	CE, RoHS, UN38.3