Sun Gold Power 4000W 12V Split Phase Inverter Charger 12kW Surge

Sun Gold Power 4000W 12V Split Phase Inverter Charger 12kW SurgeProduct Overview This Sun Gold Power 4000W 12V split phase pure sine wave inverter with charger is built for 12V battery systems that need both 120V and 240V AC power from one low frequency unit. It combines an inverter, integrated battery charger, and AC auto transfer switch in a single system for home, business, RV, trailer, boat, off grid, and emergency backup setups. The goal is simple and practical: run a wide range of appliances on clean pure

Product Overview

This Sun Gold Power 4000W 12V split-phase pure sine wave inverter with charger is built for 12V battery systems that need both 120V and 240V AC power from one low-frequency unit. It combines an inverter, integrated battery charger, and AC auto-transfer switch in a single system for home, business, RV, trailer, boat, off-grid, and emergency backup setups. The goal is simple and practical: run a wide range of appliances on clean pure sine power, recharge the battery bank from AC input when available, and switch sources automatically when incoming power drops.

Split-phase output supports 120VAC and 240VAC, which helps keep mixed loads running without workarounds. The inverter output waveform is pure sine wave and includes bypass mode for stable AC delivery. Continuous output power is 4000W, with a surge rating of 12,000W for 20 seconds for short-duration start-ups and higher initial demand. Typical transfer time is 10ms, helping connected loads ride through quick source changes more smoothly.

This unit is designed around a 12V battery system with a nominal input voltage of 12V and a minimum start voltage of 10V. Battery voltage thresholds are clearly defined, including a low battery alarm range of 10.5V to 11.0V, a selectable low battery trip range of 10.0V to 10.5V, a high voltage alarm of 16V, and a low battery restart voltage of 13V. For systems that sit ready between events, idle consumption is 45W, with power saver mode idle consumption of 18W to help reduce standby draw.

Charging is handled by the integrated AC charger with a charger rate of 120A ±5A. The AC input range is selectable between 140–270VAC and 184–253VAC, with selectable charge settings based on battery type and adjustable charge current from 0% to 100%. Battery charging follows a 3-step intelligent battery charging process, and overcharge protection shutdown is specified at 15.7V. The unit also supports AC or battery priority selection, includes automatic generator start based on battery voltage, and provides an LCD display for system status monitoring. Remote control and a BTS cable are included for easier control and battery temperature sensing support.

Key Features

• 4000W low-frequency pure sine wave inverter with charger
• Inverter, battery charger, and AC auto-transfer switch combined in one unit
• Split-phase design supporting 120V and 240V output
• AC or battery priority selectable
• Automatic generator start based on battery voltage
• Adjustable charging current from 0% to 100%
• Supports 50Hz or 60Hz output frequency
• Low idle current for improved efficiency
• LCD display for system status monitoring
• Remote control and BTS cable included
• Suitable for home, business, RV, trailer, boat, off-grid, and backup applications

Specifications

• Continuous output power: 4000W
• Surge rating: 12000W, 20 seconds
• AC output voltage: 120VAC and 240VAC
• AC input voltage: 240VAC
• Output waveform: pure sine wave, bypass mode
• Typical transfer time: 10ms
• Nominal efficiency: greater than 88%
• Nominal input voltage: 12V
• Minimum start voltage: 10V
• Low battery alarm: 10.5V–11.0V
• Low battery trip: 10.0V–10.5V, selectable
• High voltage alarm: 16V
• Low battery restart voltage: 13V
• Idle consumption: 45W
• Power saver mode idle consumption: 18W
• Charger rate: 120A ±5A
• AC input range: 140–270VAC, 184–253VAC selectable
• Overcharge protection shutdown: 15.7V
• Selectable charge settings based on battery type, adjustable charge current 0%–100%
• 3-step intelligent battery charging
• 4000W 12V low-frequency pure sine inverter
• User manual
• Remote control
• BTS cable
• Unit weight: 58.9 lb
• Unit size: 25.6 × 9.1 × 7.5 inch
• Shipping weight: 67.9 lb
• Shipping size: 30.3 × 13.4 × 12.8 inch

What’s Included

• 4000W 12V low-frequency pure sine inverter
• User manual
• Remote control
• BTS cable

Best For

• 12V battery-based backup power needing split-phase 120VAC and 240VAC output
• RV, trailer, and marine systems that require pure sine wave power and integrated charging
• Off-grid setups using AC input for battery charging and pass-through
• Loads that benefit from 12,000W surge capability for short start-ups
• Systems that want adjustable charging current from 0% to 100% with 3-step intelligent charging
• Generator-supported setups using automatic transfer and automatic generator start based on battery voltage

Why This One Makes Sense

This unit is a practical way to run mixed 120V and 240V loads from a 12V battery system without stacking separate inverter, charger, and transfer components. You get 4000W continuous pure sine output with 12,000W surge for 20 seconds, plus bypass mode and a typical 10ms transfer time to support steadier source switching. The integrated 120A ±5A charger with selectable AC input range and 0% to 100% adjustable charging current supports tighter control over battery charging behavior, while power saver mode idle consumption of 18W helps reduce standby draw. With AC or battery priority selection, automatic generator start based on battery voltage, an LCD status display, and included remote control plus BTS cable, it fits systems that need dependable backup behavior and clear day-to-day control.