Residential ESS Battery Storage 20.88kWh 51.2V Wall Mounted Battery Storage 6000 Cycles

Price Negotiable

Price: $3000-3200

MOQ: 1

Delivery Time: Negotiable

Product Description

20.88kWh Capacity Wall-mounted ESS with 6000 Cycles and 20ms Grid Transfer All-In-One Energy Storage System

Serving as a wall-mounted home energy hub, this all-in-one unit scales from 20.88kWh and integrates the inverter and PV input. It optimizes solar self-consumption for homes, secures power for villas or home offices, and switches to backup within 20ms during grid failures.

Key Features

Cost-Effective & Durable
Employing Lithium Iron Phosphate (LiFePO4) technology, cycle life up to 6000 cycles, supports daily use for over 15 years, reducing long-term operational costs.
Single MPPT PV Input
Supports up to 5kW PV input, MPPT range 150-500V, compatible with most PV modules.
Adjustable Power Factor
Power factor adjustable from 0.8 leading to 0.8 lagging, compatible with various grid requirements.
High Efficiency & Low THDi
Output THDi＜3%, high power quality, safe for sensitive electronics.
Fast Grid Transfer
Grid transfer time 20ms, ensuring uninterrupted operation of important 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, saving floor space and reducing cleaning.

Wall-mounted Energy Storage System - Modern design showing compact installation

Technical Specifications

Battery Data
Model	W5-20K
Cell Chemistry	LFP/102Ah
Rated Energy (kWh)	20.88kWh
Pack Configuration	4P16S
Rated Voltage (V)	51.2V
Operating Voltage Range (VDC)	44.8-57.6VDC
PV Input
Max. PV Input Power (W)	5,000W
Max. PV Input Voltage (V)	500V
MPPT Voltage Range (V)	150-500V
Start-up Voltage (V)	370V
Number of MPPTs (Pcs)	1
Max. PV Input Current per MPPT (A)	60A
AC Input & Output
Rated Input/Output Power (W)	5,000W
Rated Input/Output Voltage (V)	220V/230V/240V (Adjustable)
Rated AC Frequency (Hz)	50/60Hz
Max. Output Current (A)	22A
Total Harmonic Distortion (THDi)	<3%
Power Factor	0.8 Leading to 0.8 Lagging
Grid Transfer Time (ms)	20ms
Grid Connection	Single Phase
General Data
Dimensions (WDH) (mm)	600x163x1,705
Weight (kg)	202.4
Altitude (m)	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