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12kW 32kWh All-in-One ESS – 51.2V 628Ah LiFePO₄ for Large Home & Commercial Solar Storage

Basic Properties
Place of Origin: China
Brand Name: Kingconn
Certification: IEC62109, UL1741, RoHS, FCC, EN61000
Model Number: 12kw+32kwh
Trading Properties
Minimum Order Quantity: 1
Payment Terms: T/T
Specifications
Rated Power: 12KW Output Waveform: Pure Sine Wave
Communication: RS232 / RS485 / Dry Contact LCD: Yes
Nominal Capacity: 628Ah Cycle Life: ≥8,000 Cycles @ 80% DoD
Product Description

12kW 32kWh All-in-One ESS – 51.2V 628Ah LiFePO₄ for Large Home & Commercial Solar Storage

Dual MPPT | Two AC Outputs | 160A Charging | 8,000 Cycles | Mobile Wheels

Part 1 – Overview & Features

Product Introduction

The 12kW + 32kWh All-in-One ESS is a high-capacity, fully integrated energy storage system combining a 12kW hybrid inverter with a 51.2V 628Ah LiFePO₄ battery (32kWh). Designed for residential, commercial, and off-grid applications, this powerful unit delivers clean, reliable power for household appliances, air conditioners, lighting, and more — all from a single, mobile cabinet.

With dual MPPT trackers, two AC outputs, and a built-in LCD display, this system offers exceptional flexibility, efficiency, and ease of use. Its mobile wheeled base makes it easy to relocate, while the robust metal housing ensures durability in demanding environments.


Key Features

  • All-in-One Integrated Design – Inverter, battery, MPPT, and BMS in one cabinet.

  • 12kW Rated Output – 12KVA / 12KW, handles heavy loads with ease.

  • 32kWh LiFePO₄ Battery – Massive 628Ah capacity for extended backup power.

  • Dual MPPT Trackers – 7500W + 7500W PV input, up to 15kW solar.

  • Two AC Outputs – Universal socket (3kW + 3kW) + terminal block (12kW).

  • High Charging Current – 160A PV / 120A AC / 160A max charging.

  • Pure Sine Wave Output – Clean power safe for sensitive electronics.

  • Fast Transfer Time – 10ms (PC) / 20ms (household) for uninterrupted backup.

  • Mobile Wheeled Base – Built-in universal wheels for easy relocation.

  • LCD Display – Real-time monitoring of system status and battery level.

  • Multiple Communication Ports – RS232 / RS485 / CAN / Dry Contact.

  • Intelligent BMS – Full protection against overcharge, over-discharge, overcurrent, and temperature extremes.

  • 8,000+ Cycle Life – Designed for over 15 years of reliable performance.

  • Quiet Operation – Suitable for residential and commercial environments.

12kW 32kWh All-in-One ESS – 51.2V 628Ah LiFePO₄ for Large Home & Commercial Solar Storage

Part 2 – Key Specifications (Table)

Inverter Specifications



Parameter Details
Model INV 12000
Rated Power 12KVA / 12KW
Max. PV Input Power 7500W + 7500W (15kW total)
AC Output Two outputs (universal socket + terminal block)
Universal Socket Output 3KVA/3KW + 3KVA/3KW
Terminal Block Output 12KVA / 12KW
Max. AC Total Output 12KVA / 12KW
Input Voltage Range 170–280VAC (PC) / 90–280VAC (Household)
Output Voltage 220/240VAC ±5%
Output Waveform Pure Sine Wave
Transfer Time 10ms (PC) / 20ms (Household)
Peak Efficiency (PV to INV) 96%
Peak Efficiency (Battery to INV) 93%
MPPT Voltage Range 120–450Vdc
Max. PV Input Current 22.5A + 22.5A
Max. PV Charging Current 160A
Max. AC Charging Current 120A
Max. Charging Current 160A
Communication RS232 / RS485 / Dry Contact
LCD Yes

Battery Specifications



Parameter BAT 512628
Nominal Capacity 628Ah
Battery Energy 32,000Wh (32kWh)
Rated Voltage 51.2V (16S)
Discharge Cut-off Voltage 44V
Charge Cut-off Voltage 56.4V
Float Charging Voltage 56V
Continuous Charge Current 160A (adjustable)
Max. Discharge Current 200A
Rated Output Power 12,000W
Cycle Life ≥8,000 cycles @ 80% DoD
Communication RS232 / RS485 / Dry Contact
Dimensions (mm) 760 × 450 × 760
Net Weight 238 kg
Gross Weight 258 kg
Operating Temp. -10°C to 55°C

12kW 32kWh All-in-One ESS – 51.2V 628Ah LiFePO₄ for Large Home & Commercial Solar Storage

Part 3 – Details & Convenience

All-in-One. Mobile. Built for Heavy Loads.

The 12kW + 32kWh All-in-One ESS is designed for maximum convenience and performance:

  • Fully Integrated Cabinet – Inverter, battery, MPPT, and BMS all in one unit. No separate components, no complex wiring.

  • Mobile Wheeled Base – Built-in universal wheels make it easy to move the unit to any location.

  • LCD Display – Clear real-time readout of battery SOC, input/output power, and system status.

  • Two AC Outputs – Universal socket (3kW + 3kW) and terminal block (12kW) for flexible load management.

  • Dual MPPT Trackers – Maximize solar harvest even with panels facing different orientations.

  • Multiple Charging Modes – PV, AC, or mixed charging for maximum flexibility.

  • Multiple Communication Ports – RS232, RS485, CAN, and dry contact for seamless integration.

  • Built-in BMS – Intelligent battery management for safety and longevity.

  • Quiet Operation – Suitable for residential and commercial environments.

  • Expandable Design – Parallel capable for larger energy needs (future-ready).

Safety First

  • LiFePO₄ Technology – No thermal runaway, no fire risk, no toxic fumes.

  • Multi-Layer BMS Protection – Overcharge, over-discharge, overcurrent, short circuit, and temperature protection.

  • Rigorous Testing – Passed short circuit, overcharge, over-discharge, damp heat, and thermal shock tests.

  • IP21 Protection – Suitable for indoor installation.

  • Vibration & Shock Resistant – Designed for safe transport and installation.

Part 4 – Application Scenarios

Where Can You Use It?

🏠 Large Home Energy Storage
Store excess solar energy during the day and power your home at night. With 32kWh capacity and 12kW output, it can run multiple air conditioners, refrigerators, lights, and entertainment systems simultaneously.

🏢 Small to Medium Business
Keep your office, retail store, restaurant, or workshop running during outages. Protect cash registers, computers, refrigeration, and lighting with reliable backup power.

🏭 Commercial & Industrial Sites
Heavy-duty performance for warehouses, factories, and agricultural operations. The 12kW output and 32kWh capacity handle demanding loads with ease.

🌞 Off-Grid & Remote Communities
Perfect for off-grid homes, farms, or remote villages. Dual MPPT ensures maximum solar harvest even with varying panel orientations.

⚡ Solar Farm & Microgrid Projects
Integrate with large solar arrays and battery banks for community-scale renewable energy projects.

🏕️ Mobile & Temporary Power
The wheeled base makes it easy to relocate — perfect for temporary installations, events, or mobile workspaces.

12kW 32kWh All-in-One ESS – 51.2V 628Ah LiFePO₄ for Large Home & Commercial Solar Storage