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SunWell Energy

10.24kWh 51.2V Large Wall-Mounted LiFePO4 Battery

10.24kWh 51.2V Large Wall-Mounted LiFePO4 Battery

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Built as a wall-mounted LiFePO4 battery, the 10.24kWh 51.2V Large Wall-Mounted LiFePO4 Battery brings dependable storage to homes, shops and small commercial sites. Its IP20 rating and operating range from -20°C to 50°C let it run reliably in dusty, humid or temperature-swing sites. The wall-mounted design installs with basic cabling and no special tools, fitting tight equipment spaces.

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10.24kWh 51.2V Large Wall-Mounted LiFePO4 Battery — Technical Specifications
MODELSW-51200-W
Rated Voltage51.2Vdc
Cell Combination16S2P
Rated Capacity200Ah
Energy Storage10.24kWh
Cycle Life25±2℃,0.5C/0.5C,EOL70%≥6000
Max. Charge Current100A
Max. Discharge Current100A
Discharge Cut-Off Voltage43.2Vdc
Charge Cut-Off Voltage57.6Vdc
Charge Temperature0℃~50℃@60±25% Relative Humidity
Discharge Temperature-20℃~50℃@60±25% Relative Humidity
Storage Temperature-20℃~50℃@60±25% Relative Humidity
IP ClassIP20
Material SystemLiFePO4
Case MaterialMetal
Case TypeWall Mount
Product Dimension(L×W×H)690×485×226mm
Package Dimension(L×W×H)850×570×285mm
Net Weight88kg
Gross Weight98kg
Protocol (Optional)CAN/RS485/RS232
MonitoringBluetooth/WLAN Optional
CertificatesUN38.3, MSDS, CE-EMC

Features

  • LiFePO4 chemistry delivers safe, long-lasting power. The cobalt-free cells resist thermal runaway and hold capacity through deep daily cycling, rated for 6000+ cycles at high state of health.
  • Wall-mounted design saves floor space. The slim cabinet mounts on a garage or utility-room wall, keeping the 10.24kWh pack out of the way yet easy to cable and inspect.
  • A multi-protocol BMS guards every cell. It tracks per-cell voltage, current and temperature, balances cells and blocks over-charge, over-discharge, over-current and short circuit, talking to inverters over CAN/RS485.
  • Long service life cuts ownership cost. Rated for 6000+ cycles, it supports years of daily charge and discharge without premature replacement.
  • Wide operating range suits tough sites. It discharges from -20°C to 50°C and handles current, staying stable in unconditioned indoor and sheltered spaces.
  • Parallel-ready design grows with you. Add more units on the same bus to expand capacity while keeping the existing inverter and cabling.

Applications

  • Whole-Home Backup: Powers full essential household loads through extended outages.
  • Solar Energy Storage: Holds 10.24kWh of daytime PV for evening and overnight use.
  • Off-Grid Power: Supplies independent power for large cabins and remote homes.
  • High-Throughput Systems: Suits 51.2V installations with high daily energy demand.
  • Garage and Utility Room: Wall-mounted format mounts on a reinforced wall without floor space.
  • Small Commercial: Backs up essential equipment at sites without reliable grid.

Battery Safety & Protection

The SW-51200-W is built around Lithium Iron Phosphate (LiFePO4) cells, a chemistry valued for thermal stability and a low risk of thermal runaway compared with other lithium types. The cells sit inside a metal enclosure rated IP20, which protects against solid-object contact and limits dust ingress in indoor and sheltered installations.

An integrated battery management system, linked through the unit's CAN, RS485, and RS232 ports, handles cell monitoring and balancing for the 16S2P stack. Optional Bluetooth and WLAN modules let installers check status remotely, while the wide operating envelope—0°C to 50°C charging and −20°C to 50°C discharging—keeps the pack online through seasonal swings. UN38.3, MSDS, and CE-EMC certifications confirm international transport-safety and electromagnetic-compatibility compliance.

Performance & Lifecycle Advantage

Rated at 10.24kWh (200Ah) with a 51.2V nominal output, the SW-51200-W delivers stable energy for high-throughput loads through its 100A continuous charge and discharge rating. A discharge cut-off of 43.2Vdc and charge cut-off of 57.6Vdc define a safe operating window that protects cell health over time.

The LiFePO4 chemistry provides a long design life of 6000 cycles at 70% capacity retention under 25±2°C, 0.5C conditions, supporting years of daily cycling. Weighing 88kg net with a 690×485×226mm form factor, the unit suits reinforced wall mounting, and against lead-acid it offers lighter weight, lower maintenance, and better tolerance for frequent deep cycling—lower lifetime cost for backup and off-grid use.

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 this work with my 51.2V inverter?

Yes, it runs at 51.2V nominal with CAN, RS485, and RS232, connecting to most standard 51.2V off-grid and hybrid inverters. Confirm your inverter's protocol during setup.

How much can it power?

With 10.24kWh (200Ah) stored, a 1kW load runs roughly 9–10 hours, while heavier appliances shorten it. The 100A rating handles typical startup currents.

Can I expand later?

Yes. Multiple units can be paralleled over the RS485/CAN bus to grow capacity for larger systems.

Is it safe indoors?

The LiFePO4 cells and metal IP20 enclosure keep operation stable, charging at 0–50°C and discharging to −20°C. UN38.3 and CE-EMC certifications confirm compliance.

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