Power Inverter

4000W DC 12V Split Phase Pure Sine Wave Inverter With Charger


  • ★ This LFP Series Pure Sine Wave Inverter is a combination of an inverter, battery charger and AC auto-transfer switch. low frequency, low Idle Current, BTS cable, remote control.

  • ★ AC/Battery Priority: Our inverter is designed with AC priority by default, you can choose the battery priority by SW5 switch.

  • ★ Adjustable Charging Current: The max charge current can be adjusted from 0%-100% via a liner switch. 

  • ★ Auto Gen Start: The inverter can start up a generator when battery voltage goes low. and turn the generator off after battery charging is finished.


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The SunGoldPower LFP 4000 Watt 12V Split Phase Inverter Charger is not a simple power inverter, it is a top high quality power inverter, built for running your whole house (small home), Business, RV System, Trailer or Boat Application, this inverter charger is perfect for your off grid system or an emergency backup supply.
Three in one product:
★ The inverter transforms 12V DC power stored by batteries to AC electricity that can power the tools and applicances.
★ It has a buit-in 120 amp battery charger which help the grid or generator to recharge the battery.
★ The transfer switch allows the product to automatically switch between shore power and battery power within 10 mili seconds.

The inverter charger can work with various batteries, like Gel USA, AGM, Lithium, LiFePO4, LFP batteries. If you want to disable the charging function, choosing “0” in the battery type selector.
The max charge current can be adjusted from 0%-100% by the charge current control knob. It is helpful if you use the inverter to charge a small capacity battery bank.

The AC priority and battery priority switch is SW5. If you choose AC priority, the inverter will switch to battery input in the event of AC power failure. Once the grid or generator restores power, the inverter will transfer to AC input and recharge the battery. For solar systems, it is better to choose battery priority mode.

The inverter has auto generator start feature. In battery priority mode, when the battery voltage goes low and utility power is unavaiable, the inverter will send a singal to start the backup the generator and take power form the generator. It will turn the generator off after battery charging is finished. This feature needs the generator must have auto start function.

This inverter charger is capable of delivering full rated 4000 watts with an exceptional 300% surge capacity for 20 seconds.The inverter peaks is at 12000 watts, which can effective power your electronic devices, household applicance and power tools, especially the tools and appliances with startup surges, such as refrigerator, freezer, microwave.

It is also perfect for off grid system or use AC power supply for home power emergencies, which can keep the power supply uninterrupted in the event of an power failure. It can detect the loss of power and switch over to get power form a connected battery bank seamlessly to keep the power supply constant.

Another popular application of this inverter is for RV and vehicle upfitting applications, such as powering lights and other appliances in an off-grid cabin. It also can provide electricity for a mobile business or mobile office, and running camping equipment.

During the emergency situations or natural disasters, the inverter can become a true UPS (Uninterruptable Power Supply) with its seamless transition transfer switch (batteries required). For expamle, the inverter can run a sump pump to save the house from flooding or power to run a heater to keep plumbing pipes from freezing.

Main Features:
4000W Low Frequency Pure Sine Inverter With Charger.
AC/Battery Priority Selector.
Automatic Generator Start.
Safety and Convenient.
The low frequency inverter can power all kinds of appliances.
LCD Display, Remote Control.
Low Idle Consumption.
7 battery type settings for charger.
Multi Stage Smart charger 120+/-5A, charger can be disable.
10msec typical transfer time.

Inverter Output:
Continuous Output Power: 4000W
Surge Rating: 12000W (20 Seconds)
Output: AC 120V and AC 240V ,60HZ
AC Input:240V
Output Wave: Pure Sine Wave (bypass mode)
Typical Transfer Time: 10ms (MAX)
Nominal Efficiency: >88%

DC Input:
Nominal Input Voltage: 12.0Vdc
Minimum Start Voltage: 10.0Vdc
Low Battery Alarm:10.5Vdc-11.0Vdc
Low battery Trip: 10.0Vdc-10.5Vdc (select by SW1)
High Voltage Alarm: 16.0Vdc
Low battery Voltage Restart: 13Vdc
Idle Consumption: 45W
Power Saver Mode Idle Consumption: 18W

AC Charger :
Charger Rate: 120+/-5A
AC input Range (Grid or Generator): 90V-135VAC/100V-135VAC (select by SW2), 140V-270VAC/184V-253VAC (select by SW2)
Over Charge Protection Shutdown:15.7V
Selectable Charge Setting based on battery type
Adjustable charge current: off 0%-100%
3-step intelligent battery charger

4000W 12V Low Frequency Pure Sine Inverter
English Manual
Remote Control
BTS Cable
Unit Weight: 53LB
Unit Size: 17.4 x 9.5 x 7.8 inch
Shipping Weight: 57LB
Shipping Size: 23 x 12.6 x 12 inch

Download LFP Series Pure Sine Wave Inverter/Charger User's Manual

Frequently Questions Answer

1. What is the idle wattage? 

Dear Customer, the idle power is 18W if saver-on mode, the idle power is 45W if saver-off mode, thanks.

2. Can this work with Enphase micro inverters on the same grid?

Dear Customer, sorry, it can't work with other inverters on the same grid, it can't be stackble, hope your kind understanding, thanks.

3. Will the charger work on 120 volts or does the charger require 24 volts?

Dear Customer, the AC input is 240V, AC output is 120V and 240V, DC voltage is 12V, thanks.

4. Does this unit have a warrantee?

Dear Customer, the warranty is 12 months. the replacment and refund is 30 days.

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