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SunGoldPower 12000W 48V Split Phase Pure Sine Wave Inverter Charger

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LFPV12K48V240VSP

$2,899.00
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SunGoldPower Split-Phase Inverter Charger | 12000W Pure Sine Wave | 48V DC–120/240V AC

High-Capacity Split-Phase Inverter Charger for Whole-Home, Business & Off-Grid Power

The SunGoldPower LFPV12K48V240VSP is a 12,000W low-frequency split-phase pure sine wave inverter charger engineered for whole-home power, large offices, RVs, and off-grid applications. This all-in-one solution integrates a high-capacity inverter, intelligent battery charger, and automatic transfer switch, delivering uninterrupted, stable AC power for critical loads.

Built for solar integration, off-grid living, and backup power systems, the LFPV12K48V240VSP offers high surge capacity, low idle consumption, and robust efficiency, making it ideal for residential, commercial, and mobile power applications.

Key Features

  • 12kW Continuous Power & 36kW Surge: Supports 12,000W continuous load with 300% surge for 20 seconds, perfect for multiple appliances and high-demand equipment.
  • Split-Phase 120V / 240V AC Output: Dual-leg AC output compatible with household and industrial appliances. Supports 110/120V or 220/230/240VAC appliances.
  • UPS Functionality & Seamless Transfer: Built-in transfer switch ensures uninterrupted power during outages with true UPS performance.
  • High-Efficiency Low-Frequency Inverter: 90% peak DC-to-AC efficiency, 180W idle consumption, THD 3%, delivering clean, reliable power for sensitive electronics.
  • 120A Smart Battery Charger: Supports multiple battery types, recharging efficiently from grid or generator. Linear adjustment allows 0–100% charging control.
  • AC / Battery Priority Modes (SW5): Switch between AC priority (utility first) or battery priority (solar/off-grid) for seamless operation between sources.
  • Low Idle Power Consumption: Preserves battery life and reduces energy waste during standby periods.
  • Direct-Connect Terminal Block: Enables scalable high-capacity installations while supporting emergency loads up to 36,000W surge.
  • Automatic Generator Start (AGS): Starts a generator when battery voltage drops and stops it once fully charged, for autonomous system management.
  • Durable & Long-Lasting Design: Built for 10+ years of reliable operation under demanding conditions.
  • Ideal for Mobile & Off-Grid Applications: Powers lights, appliances, and equipment efficiently in RVs, mobile offices, cabins, or off-grid business setups.

Ideal Applications

  • Whole-home or large office backup power
  • Off-grid homes, cabins, or workshops
  • RVs, trailers, and mobile offices
  • Solar-powered energy storage systems
  • Emergency backup for critical electronics and appliances
  • Industrial and commercial off-grid installations

What’s Included

  • 1 × SunGoldPower LFPV12K48V240VSP 12kW Split-Phase Pure Sine Wave Inverter Charger
  • 1 × Remote Control
  • 1 × Battery Temperature Sensor (BTS) Cable
  • 1 × English User Manual

Manuals:

SunGoldPower 12000W 48V Split Phase Pure Sine Wave Inverter Charger Installation Guide & Owner Manual (PDF)

Specifications

Parameter Specification
General
ModelLFPV12K48V240VSP
Main Features
Inverter Type12 kW Split-Phase Pure Sine Inverter Charger
System VoltageDC 48 V / AC 240 V input
AC Output120 V / 240 V Split Phase
Generator SupportAuto Generator Start (AGS)
Monitoring & ControlLCD Display, Remote Control, BTS included
Battery Compatibility8 battery types (LiFePO₄, Lithium, Gel, AGM, Lead-Acid)
ApplicationHome & office appliances, backup & off-grid systems
Charge RateUp to 120 A, selectable 0%–100%
Power ModesAC / Battery Priority (UPS configuration)
Charging Technology4-step intelligent charger with PFC
Transfer Time8 ms typical (utility ↔ battery)
Generator Protection15 s delay before transfer on AC recovery
Inverter Output
Continuous Output Power12.0 kW
Surge Rating36.0 kW (20 seconds)
Output WaveformPure Sine Wave
AC Output Voltage120 V & 240 V
AC Input Voltage240 VAC (not suitable for 120 VAC input)
Output Frequency50 Hz / 60 Hz
Typical Transfer Time10 ms (max)
DC Input
Nominal Input Voltage48.0 VDC
Minimum Start Voltage40.0 VDC / 42.0 VDC
Low Battery Alarm42.0 VDC / 44.0 VDC
Low Battery Trip40.0 VDC / 42.0 VDC
High Voltage Alarm64.0 VDC
Low Battery Recovery Voltage62.0 VDC
Power Saver On Idle Consumption40 W
Power Saver Off Idle Power180 W
AC Charger
Charger Output VoltageDepends on battery type
Battery Initial Start Voltage40.0–62.8 V
Charger Rate120 A ±5 A
Overcharge Protection Shutdown62.8 V
Charger Breaker80 A
Input Voltage WaveformSine Wave (Grid or Generator)
AC Input Range184–253 VAC or 140–270 VAC
Nominal Input Frequency50 Hz / 60 Hz (auto detect)
Packaging
Included ItemsInverter, English Manual, Remote Control, BTS Cable
Unit Weight160 lb
Unit Dimensions (L×W×H)27.6 × 16.5 × 8.0 in
Shipping Weight185 lb
Shipping Dimensions (L×W×H)29.2 × 23.0 × 16.5 in

Understanding Your Power Needs

Power Calculation Guide

Sizing Metric Formula & Example
Energy Consumption (Wh) Formula: Watts × Hours
Example: 60W × 4 hrs = 240 Wh
Battery Capacity (Ah) Formula: Watt-hours ÷ System Voltage (V)
Example: 240 Wh ÷ 12V = 20 Ah
Inverter Size (W) Formula: Total Watts × 1.25 (safety margin)
Example: 300W × 1.25 = 375W → Use 400W inverter
Total Load Power (W) Formula: Sum of all appliance watts used simultaneously
Example: Light (10W) + Fan (75W) = 85W
Runtime (hrs) of Battery Formula: (Battery Ah × Voltage) ÷ Total Load (W)
Example: (100Ah × 12V) ÷ 240W = 5 hrs

Find Your Power Match

Need / Application System Recommendation
Basic lighting + phone charging Recommended Battery: 50Ah – 100Ah (12V)
Inverter Size: 100W – 200W
Notes: For small backup setups
Home office (laptop, fan, TV) Recommended Battery: 150Ah – 200Ah (12V or 24V)
Inverter Size: 500W – 1000W
Notes: For moderate usage with 4–6 hours of backup
Home backup (fridge, lights) Recommended Battery: 200Ah+ (24V or 48V recommended)
Inverter Size: 1000W – 1500W
Notes: Ideal for longer backups or heavier loads
Business / shop power backup Recommended Battery: 300Ah+ (48V system)
Inverter Size: 2000W – 3000W
Notes: Suitable for commercial setups or extended power outages

Why Shop With Us

  • Authorized & Trusted Dealer: We’re fully authorized for every brand we carry, so you get genuine products backed by full manufacturer warranties.
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  • Real Human Support, 7 Days a Week: Reach us by phone, email, or live chat — no bots, no overseas call centers, just experts who know off-grid power systems.
  • Expert Energy Guidance: Our solar and backup energy specialists are here to help with system design, product questions, and installation tips.
  • USA-Based Service: Local, knowledgeable, and friendly support right here in the U.S.
  • Secure Payments: Shop confidently with encrypted, secure checkout protecting your personal and payment information.
  • Built for Energy Independence: Whether powering a cabin, prepping for emergencies, or going off-grid, our products are chosen for performance, reliability, and sustainability.

SunGoldPower 12000W 48V Split Phase Pure Sine Wave Inverter Charger

$2,899.00