Wholesale Price Stackable Lithium Battery Energy Storage Battery

Product Description

Product Description

ALL-IN-ONE SOLAR INVERTER AND ENERGY STORAGE SYSTEM ESS 6 kW + 20 kWh

WiFi Monitoring
Built-in Solar Charger
All around protection

Model	ESS 6KW+20KWH
AC Input
Rated Input Voltage (VAC)	208 / 220 / 230 / 240; L + N + PE
Voltage Range (VAC)	90~280±3 (normal mode); 170~280±3 (UPS mode)
Frequency (Hz)	50 / 60 ( Auto Adaptive)
AC Output
Rated Capacity (kW)	6
Surge Power (kVA)	12
Voltage (VAC)	208 / 220 / 230 / 240
Power Factor(PF)	1
Frequency	50/60Hz±0.1%
Switch Time (ms)	10
Wave Form	Pure Sine Wave
Overload Capacity (Battery Mode)	60s@102%~110% ; 10s@110%~130%; 3s@130%~150% ; 0.2s@>150%
Max.Efficiency (Battery Mode)	93%@48VDC
Charger (PV / AC)
Solar Charger Type	MPPT
Max PV input current/ power	27A / 9000W
Operating Voltage Range (VDC)	80~450
Max PV Open Circuit Voltage (VDC)	500
Max PV Charge Current(A)	120
Max AC Charge Current(A)	120
Max.Charge Current(PV+AC)(A)	120
Battery
Nominal Battery Voltage	51.2VDC
Rated energy of a single module	5.12KWh(0.5C , 25℃)
Number of modules	4
Total Capacity	20KWh
Usable Energy(90%DOD)	18KWH
Max.Charge/Discharge Current	200A/400A
Operation Voltage Range	40.0Vdc ~ 58.4Vdc
Interface
reveal	LCD
communication	USB
Monitoring	WiFi
General Data
Ingress Protection	IP20
Operating Temperature	-10 ℃~ 50 ℃
Relative Humidity	5% ~ 95% (Non-condensing)
Storage Temperature	-15 ℃~ 60 ℃
Max. Operating Altitude	4000m (Derating above 1000m)
DIMENSION/Weight
LxWxH (products size, mm)	Battery:540x480x164mm*4Inverter:540x480x180mm*1
LxWxH (package size, mm)	Battery:616x556x220mm*4Inverter:616X556X236mm*1
Weight(NW Kg)	Battery:45kg*4PCSInverter:14kg*1
Weight(GWKg)	Battery:48kg*4PCSInverter:17.5kg*1

Main Products

Company Profile

Light Scale Chengdu New Energy Technology Co., Ltd. is a comprehensive high- tech enterprise specializing in the research and development, production, sales, installation, and operation of P V building system. The company is based in the building P V industry, with innovative technology as its core, leading the low- carbon aesthetics of buildings, and providing customers with high- quality, low- carbon, green, and forward- looking building P V products, and inverters, energy storage systems and installation services. Our company knows that the development of the company depends on the innovation and quality of the products. Therefore, our products have strict quality control from the procurement of raw materials to the sale of finished products. The company has established a quality management system that meets the requirements of the international quality management system. The company continuously releases the original innovations according to the market and customer needs, and always maintains the novelty and innovation of the products! The company wants the customer's thoughts and urgency. Solving problems for customers and meeting customer needs is our eternal pursuit! The development of PV technology is not only an innovation in the energy field, but also a redefinition of future lifestyles. Our company's products are sold worldwide. The company has won the unanimous recognition of consumers with satisfactory product quality and perfect after- sales service. We have a professional R & D team. We can accept O E M and O D M. We sincerely welcome friends from all over the world to visit our company and cooperate with us on the basis of long- term mutual benefits.

Our Services & Our Certificates & Exhibition

Packaging & Shipping

FAQ

What's price?

We provide reasonable price and recommend suitable batteries to our customers.

Can I expand capacity later?

Yes. Modular design with multi-parallel connections simply add units as needed, no replacement of existing equipment, protecting your initial investment.

Can the LiFePO4 battery really last more than 10 years? Will it degrade significantly after a few months?

Semi-Automatic PET Bottle Blowing hhh Machine Bottle Making Machine Bottle Moulding Machine. PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in virtually.

How to monitor? What if issues occur?

Real-time monitoring via EMS/BMS visual interface (local or remote). Pre-alarm for early warning; modular design for fast fault locating and replacement, minimizing downtime.

Is it safe? Fire risk?

Absolutely safe. LFP cells (best thermal stability), 4-layer independent protection (over-charge/discharge/temp/short-circuit etc.), built-in fire fighting, IP54 rated.

Can I really save 100% on my electricity bill? Does it require grid connection?

In completely off-grid areas, using solar plus storage achieves 100% off-grid power, resulting in zero electricity bills. For grid-connected homes, you can set priority for solar + battery use, automatically discharging during peak tariff hours to offset high costs.

Is maintenance troublesome? Do I need to regularly add electrolyte or distilled water?

Zero maintenance required. The LiFePO4 battery is sealed and maintenance-free, no acid or water refills. The intelligent BMS automatically manages charging/discharging, cell balancing, and temperature protection. All you need to do is occasionally clean dust off the outer casing.

Can this system power an air conditioner and a refrigerator? How many devices can I connect at once?

Yes. The AC charging and inverter output capacity can easily drive a home air conditioner, refrigerator, PC, TV, lighting, etc. Specific load capability depends on the power version (please refer to datasheet).