RUi XU Lithi2-20 Battery Energy Storage | IP55 Outdoor | Bluetooth | 20kWh | Self-Heating | UL 9540A
- P55 LEVEL
- Dust and water resistance meets the requirements for outdoor installation. - DUAL PROTECTION
- Dual protection through the BMS and a micro circuit breaker on the positive terminal. - QUICK PLUGS
- 200 A continuous, tool-free design for long-term stability and thermal protection. - BATTERY CARE & CHECK POINT
- Simple structure for easy assembly, disassembly, and BMS maintenance access. - INTELLIGENT BALANCING
- 150 mA passive balancing with smart algorithms ensures accurate post-charge cell balance. - EMERGENCY POWER OFF
- The emergency stop function is triggered through a dedicated EPO interface. - SELF-HEATING FEATURE
- Ultra‑wide operating temperature range, supporting operation as low as -22°F. - BLUETOOTH OTA
- The RUiXU app supports wireless OTA firmware updates in just 2 minutes. - FLEXIBLE MOUNT & MOBILITY
- Flexible installation with multiple mounting and mobility options. - AEROSOL FIRE SUPPRESSION
- Aerosol-based protection enhances safety for wiring and cells inside the battery pack.
See the Specs >
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Key Feature
-
P55 LEVEL- Dust and water resistance meets the requirements for outdoor installation.
-
DUAL PROTECTION- Dual protection through the BMS and a micro circuit breaker on the positive terminal.
-
QUICK PLUGS- 200 A continuous, tool-free design for long-term stability and thermal protection.
-
BATTERY CARE & CHECK POINT- Simple structure for easy assembly, disassembly, and BMS maintenance access.
-
INTELLIGENT BALANCING- 150 mA passive balancing with smart algorithms ensures accurate post-charge cell balance.
-
EMERGENCY POWER OFF- The emergency stop function is triggered through a dedicated EPO interface.
-
SELF-HEATING FEATURE- Ultra‑wide operating temperature range, supporting operation as low as -22°F.
-
BLUETOOTH OTA- The RUiXU app supports wireless OTA firmware updates in just 2 minutes.
-
FLEXIBLE MOUNT & MOBILITY
- Flexible installation with multiple mounting and mobility options. -
AEROSOL FIRE SUPPRESSION
- Aerosol-based protection enhances safety for wiring and cells inside the battery pack.
SPECIFICATIONS
|
Paremeter |
RUiXU Lithi2-20 |
|---|---|
|
Battery chemistry |
LiFePO4 |
|
Nominal voltage |
51.2V |
|
Nominal capacity |
392Ah |
|
Nominal energy |
20kWh |
|
Energy calculation |
51.2V × 392Ah = 20.07kWh |
|
Operating voltage |
44.8–58.4V |
|
Recommended charge current |
150A |
|
Maximum charge current |
200A |
|
Recommended discharge current |
150A |
|
Maximum discharge current |
200A |
|
Peak discharge current |
240A / 15s；300–360A / 1s |
|
Communication |
CAN / RS485 / Bluetooth |
|
Cycle life |
≥9,500 cycles at 80% DoD |
|
Design life |
15 years |
Download
Datasheet:
RUIXU_Lithi2-20_Data_Sheet_20kwh_Battery_2026110.pdf
User Manual:
RUiXU_Lithi2-20_User Manual_V1.0_C.pdf
ABOUT RUiXU
RUiXU batteries are a line of energy storage solutions known for their reliability and performance. These batteries are designed to deliver consistent power over extended periods, making them ideal for a wide range of applications including electronics, vehicles, and renewable energy systems. RUiXU batteries are recognized for their durability and efficiency, offering users a dependable source of power for various needs. Whether for everyday use or specialized applications, RUiXU batteries are engineered to meet high standards of quality and reliability in energy storage technology.
FAQ
The Lithi2-20 is a high-capacity 20kWh energy storage system built on a nominal 51.2V architecture (utilizing a 16S1P cell configuration with high-density cells).
It operates within a voltage range of 43.2V to 58.4V, with a standard maximum charge voltage recommendation of 56.8V depending on closed-loop inverter parameter handshakes.
Yes. It includes an integrated internal heating system designed to activate automatically when ambient temperatures drop to protect the cells, starting self-heat at ≤5℃(41℉) and shutting off once reaching ≥12℃(53.6℉).
Yes, the system is fully scalable from 20kWh up to 640kWh aggregate capacity by paralleling multiple units together for larger residential or light commercial off-grid setups.
The internal BMS supports a high continuous rate and handles peak surge currents up to 240A for 15 seconds or 360A for 1 second, easily accommodating large inductive motor loads like well pumps or HVAC compressors.
Users note that high-capacity floor units like the Lithi2-20 reduce terminal clutter, eliminate the need for multi-tier server racks or heavy external bus-bar cabinets, and provide a cleaner, sleeker aesthetic for large residential energy storage footprints.
Yes. If an unsupported or older off-grid inverter is used, the battery can be switched to open-loop user-defined settings, though running closed-loop via CAN/RS485 is heavily recommended by community builders.
It comes with native CAN, RS485, and Bluetooth communication ports, enabling seamless plug-and-play closed-loop data sharing with major split-phase inverters like Sol-Ark, Schneider, and others without requiring manual voltage mapping.
Current product listings specify a 10-year manufacturer warranty, subject to its terms.
The RUiXU Lithi2-20 steps up capacity and energy density compared to the Lithi2-16, utilizing higher-density cell architecture within a similar floor-standing footprint to pack more energy into the unit.
The Lithi2-20 yields a full 20 kWh of nominal storage, providing a higher energy yield per footprint than the 16 kWh model.
Both units share the same robust build philosophy, featuring IP55 all-weather enclosures, integrated low-temperature self-heating pads, built-in mobility wheels, and seamless closed-loop communication (CAN/RS485/Bluetooth) with major hybrid inverters.
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