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SunWell Energy

19.2kWh 384V High-Voltage Stackable LiFePO4 Battery

19.2kWh 384V High-Voltage Stackable LiFePO4 Battery

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Model

The 19.2kWh 384V High-Voltage Stackable LiFePO4 Battery is a modular stackable LiFePO4 battery for scalable residential and commercial banks. Its cells are rated for 6000 deep cycles, so the pack keeps delivering through years of daily charge and discharge. It runs on a 384Vdc system and expands from one unit into a larger storage bank.

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19.2kWh 384V High-Voltage Stackable LiFePO4 Battery — Technical Specifications
MODELSW-SS-5HVS4
Electrical Characteristics
Rated Voltage384Vdc
Cell Combination3051P*4S
Rated Capacity50Ah
Energy Storage19.2kWh
Cycle Life25±2℃,0.5C/0.5C, EOL70%≥6000
Charge/Discharge Standard
Charge Voltage420V
Max. Discharge Current50A
Max. Charge Current50A
Discharge Cut-Off Voltage324Vdc
Charge Cut-Off Voltage432Vdc
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
Material SystemLiFePO4
Case MaterialMetal
Case TypeStand Stack
Product Dimension(L×W×H)680×185×1815mm
Package Dimension(L×W×H)780×295×450mm×5
Net Weight14+49×4kg
Gross Weight21+53×4kg
ProtocolCAN/RS485
MonitoringBluetooth/WLAN Optional
Certificates
PACKUN38.3, MSDS
CellUN38.3, MSDS, IEC62619, CE, UL1973, UL2054

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.
  • Modular stackable design scales by adding modules. Units stack to build a larger bank with no rewiring, growing from one module to a full backup system.
  • 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 up to 50A continuous 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

  • Residential High-Voltage Storage: Pairs with high-voltage hybrid inverters to store solar and power essential home loads through outages.
  • Small Commercial Storage: Supports offices, shops, and workshops with a compact high-voltage tower that fits utility rooms without large floor space.
  • Solar Self-Consumption: Stores excess daytime PV at 384Vdc and releases it in the evening to raise self-use of solar generation.
  • Off-Grid Power: Supplies independent high-voltage energy for cabins, kiosks, and remote sites away from the grid.
  • Backup Power: Keeps critical circuits running during grid outages as part of a daily-cycling storage system.
  • Scalable System Expansion: Acts as a modular building block in the TG-SS-5HVS series that grows by adding modules or towers.

Battery Safety & Protection

The SW-SS-5HVS4 is built around Lithium Iron Phosphate (LiFePO4) cells housed in an IP65-rated metal stand-stack enclosure, a chemistry chosen for thermal stability and a low risk of thermal runaway relative to other lithium types. The sealed metal case resists dust and water ingress, making it suitable for indoor and semi-sheltered utility installations.

For operational assurance, the pack communicates status over CAN and RS485 with optional Bluetooth and WLAN monitoring so installers can track performance remotely. It is certified to UN38.3, MSDS, IEC62619, CE, UL1973, and UL2054 standards, confirming transport and safety compliance for the 384Vdc high-voltage design.

Performance & Lifecycle Advantage

Rated at 19.2kWh with a 384Vdc nominal output from 50Ah cells, the SW-SS-5HVS4 delivers stable high-voltage energy through 50A continuous charge and discharge within a safe window set by a 324Vdc discharge cut-off and 432Vdc charge cut-off. Its compact 680×185×1815mm stand-stack form factor makes efficient use of limited floor space.

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. With a metal enclosure and lower maintenance than lead-acid alternatives, it offers dependable long-term value for high-voltage residential and small commercial storage.

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 battery work with my high-voltage inverter?

The SW-SS-5HVS4 operates at a 384Vdc nominal rating with CAN and RS485 communication, so it pairs with standard high-voltage hybrid inverters. Confirm your inverter's voltage class and protocol during setup.

How much energy does it store and how long will it run my home?

It provides 19.2kWh of storage at 384Vdc. Runtime depends on your load—higher-demand households can cover extended evening use and backup, while very large draws deplete it sooner.

Can I add more capacity later?

Yes. The TG-SS-5HVS series is modular, so you can stack additional modules or connect more towers to raise capacity as your needs grow.

Is it safe to install and use at home?

The LiFePO4 cells sit in an IP65-rated metal stand-stack enclosure, and the pack is certified to UN38.3, MSDS, IEC62619, and related safety standards. It is rated for 0°C to 50°C charging and down to −20°C discharging.

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