RUiXU Lithi2-20 51.2V 392Ah 20kWh LiFePO4 Battery Storage System
The RUiXU Lithi2-20 packs 20kWh of lithium iron phosphate (LiFePO4) storage into a single 48V battery for home backup, off-grid solar and light commercial systems. It is rated for 9,500+ cycles at 80% depth of discharge, delivers 200A continuous charge and discharge, and communicates with your inverter over CAN or RS485.
Up to 32 units can run in parallel, scaling a system from 20kWh to 640kWh. The IP55 enclosure is rated for indoor or outdoor installation, and built-in self-heating keeps it charging in cold weather. It is certified to UL1973, UL9540 and UL9540A and is CEC listed.
Key Features
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20kWh in one battery: 51.2V, 392Ah LiFePO4 with 9,500+ cycles at 80% DOD
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High output: 200A continuous charge/discharge, with peak discharge of 240A for 15 seconds and 360A for 1 second
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Expandable: up to 32 batteries in parallel, from 20kWh to 640kWh
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Indoor or outdoor: IP55-rated enclosure protects against dust and water jets
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Self-heating: integrated 480W heater turns on at 41°F (5°C) or below and off at 53.6°F (12°C)
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Bluetooth monitoring and OTA updates: check battery data and update firmware wirelessly through the RUiXU app
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Aerosol fire suppression: built-in module adds protection for the wiring and cells inside the pack
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Quick-connect terminals: rated for 200A continuous for tool-free cable connections
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All-pole protection: fuse on the negative terminal and a circuit breaker on the positive terminal
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Intelligent cell balancing: 150mA passive balancing keeps cells matched after charging
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Emergency power off: supports an external emergency shutdown through the Link-IN port
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Easy service: side inspection port gives direct access to the BMS
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Flexible installation: multiple mounting and mobility options
Applications
Whole-home backup power, off-grid solar homes and cabins, grid-tied hybrid solar systems, and light commercial energy storage.
Specifications
| Model |
Lithi2-20 |
| Chemistry |
LiFePO4 |
| Nominal Voltage |
51.2V |
| Nominal Capacity |
392Ah |
| Nominal Energy |
20kWh |
| Operating Voltage Range |
43.2-58.4V |
| Recommended Charge/Discharge Current |
140A |
| Max. Charge/Discharge Current |
200A |
| Peak Discharge Current |
240A for 15s; 360A for 1s |
| Cycle Life |
≥9,500 cycles @ 80% DOD |
| Parallel Capacity |
Up to 32 units (640kWh) |
| Communication |
CAN / RS485 / Bluetooth |
| Self-Heating |
480W, on at ≤41°F, off at ≥53.6°F |
| Enclosure Rating |
IP55, indoor/outdoor |
| Weight |
Approx. 319.7 lbs (145kg) |
| Certifications |
UL1973, UL9540, UL9540A, CEC listed |
Warranty
Backed by RUiXU's 10-year warranty.