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SunWell Energy

10.24kWh 51.2V Low-Voltage Stackable LiFePO4 Battery

10.24kWh 51.2V Low-Voltage Stackable LiFePO4 Battery

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Model

This low-voltage stackable battery delivers 10.24kWh of LiFePO4 storage at 51.2V for residential and small-commercial solar backup. Its stackable enclosure measures 640×205×897 mm and is rated for 6,000 cycles, operating reliably from -20°C to 50°C in unconditioned indoor spaces.

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10.24kWh 51.2V Low-Voltage Stackable LiFePO4 Battery — Technical Specifications
MODELSW-SS-51LVP2
Electrical Characteristics
Rated Voltage51.2Vdc
Energy Storage10.24kWh
Cycle Life25±2°C, 0.5C/0.5C, EOL70%≥6000
Months Self Discharge≤2%
Charge Voltage56V
Max. Charge Current100A
Max. Discharge Current100A
Discharge Cut-Off Voltage43.2Vdc
Charge Cut-Off Voltage58.4Vdc
Environment
Charge Temperature0°C to 50°C@60±25% Relative Humidity
Discharge Temperature-20°C to 50°C@60±25% Relative Humidity
Storage Temperature-20°C to 50°C@60±25% Relative Humidity
Mechanical
IP ClassIP65
Case TypeStand Stack
Product Dimension(L×W×H)640×205×897mm
Package Dimension(L×W×H)760×335×450mm×2; 705×395×240mm
Net Weight14kg + 48kg×2
Gross Weight21kg + 53kg×2
Communication
Protocol (Optional)CAN/RS485/RS232
MonitoringBluetooth/WLAN Optional
Certificates
CellUN38.3, MSDS
PACKUN38.3, MSDS, IEC62619, CE, UL1973, UL2054
Others

Features

  • LiFePO4 chemistry provides high safety, thermal stability and a long service life.
  • Modular stackable design scales capacity by adding modules without rewiring or extra cabinets.
  • Built-in Bluetooth / WLAN shows real-time SOC, voltage and temperature without extra hardware.
  • Rated for 6,000 cycles for years of daily cycling.
  • Up to 100A continuous discharge supports refrigerators, pumps and motor startups.
  • Operates from -20°C to 50°C discharge temperature for reliable indoor installation.

Applications

  • Home backup power: Keeps lights, Wi-Fi and fridge running through outages.
  • Solar storage: Stores daytime PV for evening use, reducing grid dependence.
  • Time-of-use savings: Charges off-peak and discharges during peak-rate hours.
  • Off-grid cabin: Provides reliable storage for properties without grid access.
  • Small commercial: Powers POS and security equipment in retail settings.
  • Microgrid use: Scales as a modular unit in community storage clusters.

LiFePO4 Cells

Built on prismatic LiFePO4 cells in a 16S1P configuration, the unit is rated for 6,000 cycles. The chemistry offers inherent thermal stability, verified across a -20°C to 50°C discharge range.

Integrated BMS

A multi-threshold BMS continuously monitors cell voltage, current and temperature, covering over-charge, over-discharge, over-current, short-circuit and temperature protection. Bluetooth / WLAN provides real-time diagnostics directly on the unit.

Warranty

LiFePO4 batteries are backed by a 5-year warranty. If you experience any quality issues within the warranty period, please contact us and we will arrange a replacement or repair promptly.

Frequently Asked Questions

Will the 10.24kWh low-voltage stackable battery work with my 51.2V inverter?

The unit runs at 51.2V nominal and connects to mainstream 51.2V hybrid and off-grid inverters, so it drops into most home solar systems without extra parts. Contact our technical team with your inverter model for a pre-purchase compatibility check.

How long can a 10.24kWh battery like this power my home?

A 10.24kWh pack typically covers essential loads—lights, router, fridge and a few sockets—through an evening or an overnight outage, and longer when recharged by solar during the day. Actual runtime depends on your load profile; share your appliance list with our team for a tailored estimate.

Can I add more storage to this battery later?

Yes. The unit supports parallel connection, so you can start with one and expand capacity as your needs grow while keeping the same inverter and cabling. Contact our technical team for parallel configuration guidance.

Is the 10.24kWh low-voltage stackable battery safe for home use?

Yes. LiFePO4 chemistry is inherently stable and non-combustible, and the unit adds a multi-threshold BMS that guards against overcharge, over-discharge, short circuit and overheating. The enclosure fits garages, utility rooms and sheltered indoor spaces.

Expert Support

Our team of solar energy experts is ready to help you find the perfect solution for your needs.

Fast Response

We typically respond to all inquiries within 24 hours during business days.

Custom Solutions

Every project is unique. Let us design a solar solution tailored to your specific requirements.