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SunWell Energy

20.48kWh 5kW APOLLO A Stackable All-in-One ESS

20.48kWh 5kW APOLLO A Stackable All-in-One ESS

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Model

Modular to the core, this twenty point four eight kilowatt hour five kilowatt cabinet is the first of many the household can bolt together. A five kilowatt inverter and twenty point four eight kilowatt hour pack sit in one floor cabinet here, giving a site a self-contained solar hub that grows by stacking.

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20.48kWh 5kW APOLLO A Stackable All-in-One ESS — Technical Specifications
MODELSW-A-51.2-400-US
Inverter
Rated Power5KW
AC Rated Voltage110V/230V (Split phase)
Rated Frequency50Hz
Efficiency≥98%
Transfer Time10ms
WaveformPure Sine Wave
Battery Overvoltage58.4V
Battery Undervoltage Alarm45V
Constant Voltage Charge58.4V
Float Voltage56V
Max. Charging Current100A
Communication InterfaceRS232（Inverter) / RS485（BMS）
Dimension60×40.5×18cm
AC Input
Nominal Voltage110Vac
Voltage Range77-135Vac
Rated Frequency50/60Hz
Frequency Range40-70Hz
Rated Current30A
Max. AC Current50A
PV Input
Max. Voltage150V
Optimum Voltage60-105V
Voltage Range60-150V
Max. Power6400W
Battery
Rated Capacity20480Wh(400Ah)
Nominal Voltage51.2V
Discharge Voltage Range43.2V-58.4V
Standard Charing Current50A
Max. Charging Current100A
Max. Discharging Current100A
Depth of Discharge95%
Communication InterfaceCAN/RS485
Cycle Life≥6000, 25±2°C, 0.5C, EOL80%
Working Temperature RangeCharge: 0°C-50°C; Discharge: -20°C-60°C
Storage Temperature-20°C-60°C
Dimension60×40.5×19.5cm

Features

  • Grow the bank One five kilowatt block is never the end; the twenty point four eight kilowatt hour store keeps growing.
  • True sine Sensitive electronics ride the five kilowatt clean stage at one hundred ten volt.
  • Safe chemistry LiFePO4 keeps the twenty point four eight kilowatt hour cells calm under load.
  • BMS in command The controller trims the five kilowatt output before any cell strains.
  • All-source charge Panel, grid and genset merge at one tolerant input.
  • Rugged shell A metal body takes knocks and climate a plastic box would not.

Applications

  • Security & lighting: Surveillance, gates and yard lights stay on the battery through an outage, holding a site under watch.
  • Community microgrid: Neighbouring homes wire their cabinets into one pool, sharing a single backup bank through the blackout.
  • Water pump: An irrigation or well pump starts and runs on the pure-sine five kilowatt output, drawing from stored solar.
  • Whole-home backup: A blackout barely registers: the five kilowatt inverter hands the load to the twenty point four eight kilowatt hour bank in moments.
  • Evening solar self-use: Rooftop generation is captured by day and released after sunset, so more of the twenty point four eight kilowatt hour store serves the home itself.
  • Peak-period bill cut: It stores cheap midday power and gives it back when prices climb, smoothing the peak-demand charges on the account.

Energy Management & System Architecture

The stack thinks as one battery because the BMS fuses every five kilowatt cabinet's slice of the twenty point four eight kilowatt hour pack into a common figure. Inside the cabinet a five kilowatt inverter, an MPPT stage and the twenty point four eight kilowatt hour LiFePO4 pack share one bus under a self-developed BMS. The BMS balances every cell and isolates a fault before the five kilowatt stage feels it.

Charging is solar-led and grid-backed through one MPPT; the five kilowatt inverter rebuilds one hundred ten volt the instant an outage hits. While the grid is present the unit inverts panel energy to one hundred ten volt and tops the twenty point four eight kilowatt hour bank; on a drop it shifts to backup within moments, keeping a home's essentials alive.

Grid, Backup & System Integration

Expansion is mechanical, not electrical: drop a five kilowatt twenty point four eight kilowatt hour block beside the first and the BMS adopts it, stretching both capacity and backup at one hundred ten volt. The twenty point four eight kilowatt hour pack bridges any gap the grid leaves, the five kilowatt inverter holding one hundred ten volt through the switchover.

The system stays one virtual battery, so runtime grows the moment the new tile clips on. One PV inlet, one AC outlet and a self-managing BMS mean the system is wired once and expanded by stacking more of the same block.

Warranty

We provide a 5-year warranty on the battery and a 2-year warranty on the inverter of this product. 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

Can I really stack more later?

Yes. Each five kilowatt cabinet clips to the next and the BMS merges it, so the twenty point four eight kilowatt hour total grows without new wiring.

How long does the twenty point four eight kilowatt hour battery last in an outage?

It carries essentials for hours and repeats that routine for years thanks to LiFePO4 cycling.

Will it run my whole home?

The five kilowatt inverter drives lighting, fridge and routers together on one hundred ten volt.

Is it safe indoors?

The BMS guards over-current, over-temperature and short circuit; mount it ventilated.

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.