ESS Energy Storage System Stackable All In One ESS 1200W 4.02kWh Energy Storage System Lithium Battery
ESS Energy Storage System Stackable All In One ESS 1200W 4.02kWh Energy Storage System Lithium Battery
The RSUN Stacked RSN Series is a streamlined residential energy-storage solution built around a flexible, modular battery stack. Its plug-and-play architecture allows each unit to be added or removed with ease, giving homeowners a simple path to expand capacity as their energy needs grow. By storing excess solar power generated throughout the day, it delivers reliable home backup and meaningful reductions in grid consumption.
With built-in WiFi and Bluetooth connectivity, the system offers real-time oversight and control through a mobile app, whether the user is at home or away. Its upright, floor-mounted design keeps the footprint minimal, making it a smart fit for compact indoor spaces while combining dependable performance with modern, intuitive energy management.
• High-durability Li-ion battery (8000-cycle life) plus MPPT solar charging built in.
• Adjustable energy priority, choose solar, battery, or grid as the main source.
• Broad AC input tolerance for regions with unstable power.
• Comprehensive safeguards: discharge, load, temperature, and short-circuit protection.
• Stackable, modular layout for simple upkeep and capacity upgrades.
PRODUCT OVERVIEW:
SPECIFICATIONS:
| Model | RSN 1.2kWh+4.02kWh | RSN 3.6kWh+6kWh | RSN 6kWh+10kWh | RSN 11kWh+16kWh |
| AC Input | ||||
| Rated Input Voltage | 208/220/230/240 VAC | |||
| Input Voltage Range | 170~280VAC(For PC);90~280VAC(For Home Appliances) | |||
| Frequency Range | 50/60Hz(Auto Sensing) | |||
| AC Charging Current Range | 2-60A | 2-100A | 2-80A | 2-120A |
| Max. Input Current | 10A | 20A | 26A | 50A |
| PV Input | ||||
| Solar Charging Type | MPPT | |||
| PV Max. Input Power | 1KW | 4KW | 5.5KW | 5.5KW*2 |
| MPPT Tracking Voltage Range | 20-100 VDC | 120-430 VDC | ||
| Max. PV Input Voltage | 125VDC | 450 VDC | ||
| PV Charging Current Range | 2~60A | 0~80A | ||
| Max. Charging Current | 120A | 100A | 80A | 160A |
| Output | ||||
| Rated Output Voltage | 1.2kW | 3.6kW | 6.0kW | 11kW |
| Output Voltage Range | (220V~240V)±5% | |||
| Frequency | 50/60Hz±0.1% | |||
| Max. Output Current | 22.7A | |||
| Peak Power | 2400W | 7200W | 12000W | 11000W*2 |
| Overload Capacity Product Description (Battery Mode) |
1min@102%~110% Load ; 10s@110%~130%Load; 3s@130%~150% Load ;200ms@>150% Load | |||
| Peak Efficiency | >94% battery mode >99% line mode | |||
| Transfer Time | 10ms | |||
| Battery | ||||
| Battery Voltage | 12.8VDC | 25.6VDC | 51.2vdc | 51.2vdc |
| Battery Energy | 4.02kWh | 8.04kWh | 10.24kWh | 16.08kWh |
| Cell technology | LiFePO4 | |||
| DOD | 80% | |||
| Product General Data | ||||
| Designed Life-span cycle | 6000 | |||
| Communication Interface | RS232, RS485, CAN(Standard),SNMP/Wifi/Bluetooth(Optional) | |||
| Display | LCD&LED | |||
| Parallel Interface | RS485/CAN/RS232/SNMP/WIFI/Bluetooth | |||
| Operation Environment Temperature |
0~40℃ | |||
| Environment Humidity | -15~60℃ | |||
| Operation Altitude | <3000m | |||
| Cooling Mode | Active Cooling | |||
| Noise Emission | <50db | |||
RSUN Support & Custom Solutions:
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Sample Access
We provide product samples to facilitate testing, technical evaluation, and pre-launch verification, helping clients confirm performance and compatibility before committing to larger orders. -
Reliable Warranty
All RSUN products, including UPS units, solar inverters (12V/24V/48V), and charge controllers, come with a clearly defined warranty covering materials and manufacturing defects, reflecting our commitment to consistent quality. -
Tailored OEM/ODM Services
Backed by ISO9001 & ISO14001-certified production, RSUN offers end-to-end OEM/ODM solutions, from R&D and circuit design to prototyping, full-scale manufacturing, and quality assurance. With over a decade of global collaboration, we deliver innovation, reliability, and on-time production.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.