Sunwoda Oasis L261 All-in-One Cabinet - No STS
The Sunwoda OASIS L261 is a liquid-cooled, all-in-one LFP battery energy storage cabinet for commercial and industrial projects. With 261 kWh rated energy capacity and 125 kW rated AC output power, it supports solar self-consumption, peak shaving, load shifting and wider C&I energy-management applications.
Built with Sunwoda’s 314 Ah LFP cells, the cabinet integrates the battery packs, BMS, PCS, liquid-cooling system, Local Control Unit (LCU), monitoring and fire-protection systems within one outdoor-ready enclosure. The included LCU provides local system monitoring and basic strategy management and, in this All-in-One configuration, works with the integrated PCS to support fixed-time charging and discharging schedules.
Its modular design supports parallel expansion, subject to final system design and site requirements.
Sunwoda Energy is a BloombergNEF Tier 1 Energy Storage Manufacturer with in-house battery-cell production and decades of lithium-ion battery experience.
 This version does not include an integrated Static Transfer Switch (STS) module. If backup operation with grid/off-grid switching is required, the optional STS module must be specified separately according to the final system design.
Why Choose the Sunwoda OASIS L261 All-in-One
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More Features:
- 125 kW / 261 kWh all-in-one C&I energy storage cabinet
- Integrated battery packs, BMS, PCS, liquid cooling and Local Control Unit
- Built-in basic EMS with local touchscreen and cloud platform access
- LCU provides real-time system monitoring, fault recording, early warning, fault location and remote-upgrade support
- Supports fixed-time charging and discharging schedules through the LCU basic strategy-management functions
- Parallel expansion to MW-scale available, subject to approved system design
- Standardised interfaces for plug-and-play commissioning and minimal on-site work
- Multi-layer safety with liquid cooling and built-in fire suppression
- Compact footprint of less than 1.5 m² per cabinet
- Communication via CAN, RS485 and Ethernet
- Outdoor installation with IP55 cabinet protection and IP67 pack-level protection
- Grid/off-grid switching within 20 ms is supported when the compatible optional STS is installed
- An optional STS module, which provides seamless backup for critical loads during grid outages, is available (Note that this model does not include STS)
- Supports connection to an external EMS for remote dispatching, cluster control and energy-efficiency management
- Supports PV self-consumption, peak shaving, load shifting and C&I energy management applications
- Microgrid capable with inverters, PV arrays, diesel generators, and critical loads for off-grid or weak-grid sites
- Cloud platform scheduling for remote fleet control, fault logging, and energy efficiency management
- The cabinet comes with a 5-year product quality warranty covering defects in workmanship and materials. A battery performance warranty of up to 10 years or 8,000 cycles is also available, subject to operating conditions and Sunwoda’s warranty terms and conditions.
System Expansion and Parallel Configuration
The Sunwoda OASIS L261 supports AC-side and DC-side parallel configurations:
- AC-side parallel connection (Power+Capacity Scale): Multiple L261 All-in-One cabinets can be connected in parallel using a compatible AC combiner. This configuration increases both the total energy-storage capacity and rated AC output power.
- DC-side parallel connection (Capacity Scale): Multiple L261 battery-only cabinets can be connected in parallel using a compatible DC combiner, subject to the requirements of the external PCS and final system design.
- The Mixing Limitation:Â An L261 battery-only cabinet cannot be connected directly to an L261 All-in-One cabinet to expand its internal battery capacity. The L261 All-in-One has one positive and one negative DC connection and does not support this type of DC-side capacity expansion.
Additional capacity for an L261 All-in-One installation must therefore be achieved by adding another complete L261 All-in-One cabinet on the AC side, rather than by connecting an L261 battery-only cabinet to the existing All-in-One unit.
The final number of cabinets, combiner selection, communications architecture and system limits must be confirmed by Sunwoda according to the project requirements.
Technical Information:
- Rated capacity: 261 kWh
- Cell specification: 3.2V 314Ah LFP cells
- Pack capacity: 52.2 kWh per pack
- Number of battery packs: 5
- Battery pack configuration: 1P52S*5
- Rated Voltage (V): 832
- AC Rated output power (kW): 125
- AC side Rated Voltage (V): 400Vac
- Cooling Method: Liquid Cooling
- Protection level: IP55
- Cell cycle life: 9,000 cycles at 25°C, 0.5C/0.5C, 90% DOD, EOL 70%
- Dimensions (W Ă— D Ă— H) in mm: 980 Ă— 1390 Ă— 2350
- Weight: < 2,400 kg
- Certifications: UN38.3, CE, IEC standards
| High / Low Voltage Battery | High Voltage |
| Battery / System Model | Sunwoda Oasis |
| Brand | Sunwoda |
| Protection Rating (IP) | Suitable for Outdoors |
| Battery End User | Commercial/Industrial |
| Battery Cell Type | LiFePO4 (LFP) |
| Battery Nominal Capacity (kWh) | 261.0 |
| Charge/Discharge Rate | 0.5C |
| Depth Of Discharge (%) | up to 100% DoD |
| Grid Connection | Grid and Off Grid Capable |
| Battery IP Rating | IP55 |
| Dimensions (W x H x D) mm | 980 x 2350 x 1390 |
| Product Weight (Kg) | 2400 |
Sunwoda OASIS L261 All-in-One Datasheet - 16 01 2026.pdf
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Sunwoda OASIS L261 All-in-One User Manual- 29 04 2026.pdf
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Sunwoda LCU User Manual - 17 07 2026.pdf
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Sunwoda LCU Function Instruction Guide - 17 07 2026.pdf
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Sunwoda Sustainability ESG Report 2024 - 21 04 2025c.pdf
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Sunwoda Energy Brochure - 19 01 2026.pdf
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Sunwoda OASIS L261, OASIS L261 All-in-One WarrantyTerms - 17 12 2025.pdf
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