Sun Gold Power 18kW 48V Split Phase Inverter Charger 10ms

Product Overview

This Sun Gold Power split-phase pure sine wave inverter charger is built for serious 48V battery systems that need strong 120V and 240V AC power without integrated solar charging. It combines a 48V DC inverter, an AC battery charger, and an automatic transfer switch into one system, designed to supply residential, commercial, backup, and off-grid electrical loads. The focus here is dependable power delivery and clean pass-through behavior, with fast transfer and flexible priority settings for how your system runs.

Split-phase output supports both 120V and 240V appliances, which is a big deal in real installs where the goal is to keep normal circuits running instead of living off extension cords. The inverter output waveform is pure sine wave, and the transfer time is specified at 10 ms maximum, helping keep connected loads steady through brief interruptions. Surge capacity is listed at 300%, which supports higher short-duration demand when loads start or ramp.

This unit is intended for setups where batteries are the center of the system and AC input is used to recharge and support loads. It accepts 240V AC input with a sine wave AC input waveform and includes selectable AC priority or battery priority operation, so you can set the behavior to match how the site uses power. It also includes automatic generator start capability and remote monitoring support, helping align generator runtime and system oversight with the needs of the installation.

Battery compatibility is broad, including lithium, gel, AGM, and lead-acid. The charger output voltage is dependent on battery type, and the specifications include a detailed battery voltage window so the system can be set up within the stated operating range. Idle consumption is listed with power saver on and off, which matters for systems that sit ready between events.

Key Features

• Combines inverter, AC charger, and automatic transfer switch in one unit
• Supports split-phase output for 120V and 240V appliances
• Selectable AC priority or battery priority operation
• Compatible with multiple battery types including lithium, gel, AGM, and lead-acid
• Includes automatic generator start capability and remote monitoring support

Specifications

• Continuous output power: 12 kW, 15 kW, 18 kW
• Surge capacity: 300%
• Output waveform: Pure sine wave
• AC output voltage: 120 V, 240 V
• AC input voltage: 240 V
• DC battery voltage: 48 V
• AC charger current: 115 A ±5 A, 100 A ±5 A, 95 A ±5 A
• Output frequency: 50 Hz, 60 Hz
• Transfer time: 10 ms maximum
• Nominal DC input voltage: 48.0 V
• Minimum start voltage: 40.0 V, 42.0 V
• Low battery alarm voltage: 42.0 V, 44.0 V
• Low battery cutoff voltage: 40.0 V, 42.0 V
• High voltage alarm: 64.0 V
• Voltage recovery level: 62.0 V
• Idle consumption with power saver on: 40 W, 45 W, 50 W
• Idle consumption with power saver off: 180 W, 225 W, 270 W
• Charger output voltage: Dependent on battery type
• Battery startup voltage range: 40 V to 62.8 V
• Overcharge protection shutdown voltage: 62.8 V
• Charger breaker rating: 80 A, 100 A
• AC input waveform: Sine wave
• AC input voltage range: 184–253 V, 140–270 V
• Nominal input frequency: 50 Hz, 60 Hz

What’s Included

• 48V split-phase pure sine wave inverter charger with integrated AC charger and automatic transfer switch

Best For

• Residential or commercial 48V battery systems needing 120V and 240V split-phase output
• Backup power setups that need automatic transfer switching with up to 10 ms transfer time
• Off-grid electrical loads where AC input is used for charging and load support
• Systems that require selectable AC priority or battery priority operation
• Installations using lithium, gel, AGM, or lead-acid battery banks
• Generator-backed systems needing automatic generator start capability and remote monitoring support

Why This One Makes Sense

This inverter charger is a practical fit when you want a high-capacity 48V power system that can run both 120V and 240V loads without relying on integrated solar charging. You get pure sine wave output, split-phase support, and a fast 10 ms maximum transfer time for steadier operation. The 300% surge capacity supports short-duration start-up demand, and the selectable AC or battery priority modes let the system follow a clear operating plan. With built-in AC charging from 240V input, broad battery compatibility, and features like automatic generator start capability plus remote monitoring support, it supports installs that need to work day after day and stay ready when utility power is not there.