Sungold Power- 15000W 48V Split Phase Inverter Charger | Home Backup Power
SAVE! 3–5% with bank transfer on orders over $5,000
SAVE! 3–5% with bank transfer on orders over $5,000
The 15000W 48V Split Phase Pure Sine Wave Inverter Charger is a professional-grade energy conversion system engineered for demanding residential, off-grid, and light commercial power applications. Built on a low-frequency transformer platform, this inverter delivers exceptional surge capacity, long-term reliability, and clean, utility-grade power suitable for sensitive electronics and heavy motor loads alike.
Designed to operate as the central power hub of your energy system, this all-in-one unit combines a high-power inverter, intelligent AC battery charger, and automatic transfer switch into a single enclosure—simplifying installation while maximizing performance and system stability.
Available as a stand-alone inverter or bundled with 20.48kWh of UL-certified lithium battery storage, this system offers scalable flexibility for a wide range of energy needs.
Unlike standard single-phase inverters, this unit delivers true 120V / 240V split-phase output, allowing it to connect directly to standard residential breaker panels and power both common household circuits and high-demand 240V appliances.
The inverter requires a 240VAC input and can output either 120VAC or 240VAC, making it suitable for:
Whole-home backup systems
Off-grid homes and cabins
Workshops and agricultural buildings
Small commercial and mixed-use facilities
Output frequency is selectable between 50Hz or 60Hz, ensuring compatibility across regional standards and specialized applications.
This inverter is built on a low-frequency transformer architecture, a critical feature for applications involving large inductive loads. This design enables the system to handle extreme startup surges from equipment such as:
Air conditioners and heat pumps
Water well pumps
Refrigerators and freezers
Power tools and compressors
Electric dryers and HVAC equipment
The result is stable voltage output, reduced nuisance shutdowns, and long-term durability under heavy, repeated loads.
The integrated high-capacity AC charger (up to 120A) allows rapid battery recharging from grid power or a generator. Charging current is fully adjustable from 0–100%, giving you precise control over generator loading and system efficiency.
The inverter supports AC priority or battery priority modes, allowing you to configure how power flows based on your energy strategy:
Use grid or generator power first
Prioritize battery power for off-grid or backup operation
An automatic transfer switch ensures seamless power transitions with a typical transfer time of 8–10 milliseconds, keeping essential loads online during grid interruptions.
This inverter is compatible with a wide range of battery chemistries, including:
LiFePO₄ (Lithium Iron Phosphate)
AGM
GEL
Flooded lead-acid
Battery charging profiles are selectable to ensure proper voltage behavior and battery longevity. A Battery Temperature Sensor (BTS) is included to provide temperature-compensated charging, improving safety and extending battery life in varying environments.
The system supports Automatic Generator Start (AGS), enabling the inverter to automatically start and stop a compatible generator based on battery state of charge or load demand. A remote control module is included, allowing convenient system monitoring and configuration without direct access to the inverter enclosure.


This option is ideal for customers who already have a compatible 48V battery bank or are designing a custom system. It provides full inverter, charger, and transfer-switch functionality without bundled storage.
This bundled configuration includes four SG48100P 48V 100Ah server-rack lithium batteries, delivering 20.48kWh of total usable energy storage.
Battery System Highlights:
LiFePO₄ chemistry for long cycle life and thermal stability
UL1973 & UL9540A certified for residential and commercial installations
Designed for solar storage, backup power, and energy shifting
Rack-mountable, modular, and expandable
High safety profile with integrated BMS protection
This bundle is ideal for customers seeking a balanced, turnkey inverter + battery solution that can be expanded over time.
Continuous Power: 15,000W
Surge Power: Up to 45,000W (short duration)
Output Voltage: 120V / 240V Split Phase
Waveform: Pure Sine Wave
Frequency: 50Hz / 60Hz selectable
Efficiency: >88%
Transfer Time: ≤8–10ms
Input Voltage: 240VAC
Input Range: 184–253VAC / 140–270VAC selectable
Built-in Transfer Switch: Yes
Nominal Battery Voltage: 48V
Battery Types Supported:
Lithium Iron Phosphate (LiFePO₄)
AGM
GEL
Flooded Lead-Acid
Battery Voltage Profiles: 8 selectable presets
Low / High Voltage Protection: Yes
Max Charging Current: Up to 120A
Charge Rate Adjustment: 0–100% selectable
Charging Type: 4-step intelligent charging
Power Factor Correction (PFC): Yes
Battery Temperature Sensor: Included
15000W 48V Split Phase Pure Sine Wave Inverter Charger
LCD Remote Control
Battery Temperature Sensor (BTS)
Remote Control Cable
User Manual
This inverter does not include an MPPT solar charge controller
A separate MPPT controller is required for solar panel input
Designed for 48V battery systems only
Professional installation recommended for split-phase systems