Sungold Power 4000W DC 48V Split Phase Pure Sine Wave Inverter With Charger Ul1741 Standard
- Authorized Dealer – We’re officially authorized to sell every brand on our site. That means genuine products and full manufacturer warranties—no exceptions.
- Free Shipping – Get fast and free shipping on every order, anywhere in the continental U.S.
- Top-Rated Customer Support – Need help? Our friendly, U.S.-based team is here to support you before and after your purchase.
Guaranteed Secure Checkout

Sungold Power 4000W DC 48V Split Phase Pure Sine Wave Inverter With Charger Ul1741 Standard
Highlight:
-
★ 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. It is UL1741 standard.
- ★ The split-phase 4000 watts inverter requires 240VAC input and can provide 120VAC or 240VAC output power for all kinds of appliances, and it can output 50 or 60Hz via the SW4.
-
★ 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 battery power inverters can start up a generator when battery voltage goes low, and turn the generator off after battery charging is finished.
Feature:

The SunGoldPower LFP 4000 Watt DC 48V AC 120/240 Split Phase Inverter Charger is a top high quality low frequency 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.
The split-phase inverter requires 240VAC input and will output 110/120 or 220/230/240VAC, and it can output 50 or 60Hz via the SW4. It is capable of producing 2 legs of 110V, making this inverter perfect for home and business applications with a 220 panel in place.
Three in one product:
★ The inverter transforms 48V DC power stored by batteries to AC electricity that can power the tools and appliances.
★ It has a built-in 40 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.







Specifications:
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.
*9 battery type settings for charger.
*Multi Stage Smart charger 40+/-5A, charger can be disable.
*10msec typical transfer time.
Inverter Output:
*Continuous Output Power: 4000W
*Surge Rating: 12000W (20 Seconds)
*AC Output: AC 120V and AC 240V
*AC Input: 240V
*Output Wave: Pure Sine Wave (bypass mode)
*Typical Transfer Time: 10ms (MAX)
*Nominal Efficiency: >88%
DC Input:
*Nominal Input Voltage: 48.0Vdc
*Minimum Start Voltage: 40.0Vdc
*Low Battery Alarm: 42.0Vdc-44.0Vdc
*Low battery Trip: 40.0Vdc-42.0Vdc (select by SW1)
*High Voltage Alarm: 64.0Vdc
*Low battery Voltage Restart: 52Vdc
*Idle Consumption: 48W
*Power Saver Mode Idle Consumption: 19W
AC Charger :
*Charger Rate: 40+/-5A
*AC input Range (Grid or Generator): 140V-270VAC/184V-253VAC (select by SW2)
*Over Charge Protection Shutdown:62.8V
*Selectable Charge Setting based on battery type
*Adjustable charge current: off 0%-100%
*3-step intelligent battery charger
Packaging:
*4000W 48V Low Frequency Pure Sine Inverter
*English Manual
*Remote Control
*BTS Cable
*Unit Weight: 55LB
*Unit Size: 22 x 9.1 x 7.5 inch
*Shipping Weight: 64 LB
*Shipping Size: 27 x 13.4 x 13 inch
Document Library:
Download LFP Series Pure Sine Wave Inverter/Charger User's Manual
Shipping Policy:
1.WHICH COUNTRIES DO YOU SHIP TO?
We mainly ship to USA and Canada, please contact us for shipping to your country before purchase if the country/region not mentioned above.
2.WHERE IS THE PACKAGE SHIPPED FROM?
Most of our packages are shipped via Amazon distribution centers in the U.S., E.U. Some packages are shipped from third-party warehouses that are near your country.
3.HOW LONG DOES DELIVERY TAKE?
We need 3 to 5 working days to process the order, and usually 6-10 days later you will receive your products. The shipping is delayed for some objective or uncontrolled reasons. We will notice our customer ahead for delays.
4.HOW CAN I GET FREE SHIPPING FOR YOUR PRODUCTS?
We provide 100% FREE Shipping.(except some remote address)
5.WHAT SHIPPING CARRIERS DO YOUR USE?
We use all major carriers, such as dhl/fedex/ups/usps and local courier partners. You have the option to choose faster shipping if you pay the additional cost.

6.CAN I STILL CHANGE MY SHIPPING ADDRESS EVEN THOUGH THE PACKAGE HAS BEEN SHIPPED OUT?
Sorry, once shipped out, we can’t change the delivery address.
7.WHAT SHOULD I DO IF THE PACKAGE DAMAGED BY THE TRANSPORTATION WHEN FEDEX DELIVERY FOR ME?
If you received your order damaged, please contact the shipment carrier to file a claim. Please save all packaging materials and damaged goods before filing a claim.
8. SOME OTHER THINGS TO NOTE ABOUT YOUR ORDER
All orders must have a valid street address, expedited orders cannot be sent to PO Boxes.
Delivery to remote areas may incur additional cost up to $50 - $200.
Shipments cannot be rerouted once a package has been shipped.
Your order may require a signature.
Description
Sungold Power 4000W DC 48V Split Phase Pure Sine Wave Inverter With Charger Ul1741 Standard
Highlight:
-
★ 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. It is UL1741 standard.
- ★ The split-phase 4000 watts inverter requires 240VAC input and can provide 120VAC or 240VAC output power for all kinds of appliances, and it can output 50 or 60Hz via the SW4.
-
★ 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 battery power inverters can start up a generator when battery voltage goes low, and turn the generator off after battery charging is finished.
Feature:

The SunGoldPower LFP 4000 Watt DC 48V AC 120/240 Split Phase Inverter Charger is a top high quality low frequency 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.
The split-phase inverter requires 240VAC input and will output 110/120 or 220/230/240VAC, and it can output 50 or 60Hz via the SW4. It is capable of producing 2 legs of 110V, making this inverter perfect for home and business applications with a 220 panel in place.
Three in one product:
★ The inverter transforms 48V DC power stored by batteries to AC electricity that can power the tools and appliances.
★ It has a built-in 40 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.







Specifications:
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.
*9 battery type settings for charger.
*Multi Stage Smart charger 40+/-5A, charger can be disable.
*10msec typical transfer time.
Inverter Output:
*Continuous Output Power: 4000W
*Surge Rating: 12000W (20 Seconds)
*AC Output: AC 120V and AC 240V
*AC Input: 240V
*Output Wave: Pure Sine Wave (bypass mode)
*Typical Transfer Time: 10ms (MAX)
*Nominal Efficiency: >88%
DC Input:
*Nominal Input Voltage: 48.0Vdc
*Minimum Start Voltage: 40.0Vdc
*Low Battery Alarm: 42.0Vdc-44.0Vdc
*Low battery Trip: 40.0Vdc-42.0Vdc (select by SW1)
*High Voltage Alarm: 64.0Vdc
*Low battery Voltage Restart: 52Vdc
*Idle Consumption: 48W
*Power Saver Mode Idle Consumption: 19W
AC Charger :
*Charger Rate: 40+/-5A
*AC input Range (Grid or Generator): 140V-270VAC/184V-253VAC (select by SW2)
*Over Charge Protection Shutdown:62.8V
*Selectable Charge Setting based on battery type
*Adjustable charge current: off 0%-100%
*3-step intelligent battery charger
Packaging:
*4000W 48V Low Frequency Pure Sine Inverter
*English Manual
*Remote Control
*BTS Cable
*Unit Weight: 55LB
*Unit Size: 22 x 9.1 x 7.5 inch
*Shipping Weight: 64 LB
*Shipping Size: 27 x 13.4 x 13 inch
Document Library:
Download LFP Series Pure Sine Wave Inverter/Charger User's Manual
Shipping Policy:
1.WHICH COUNTRIES DO YOU SHIP TO?
We mainly ship to USA and Canada, please contact us for shipping to your country before purchase if the country/region not mentioned above.
2.WHERE IS THE PACKAGE SHIPPED FROM?
Most of our packages are shipped via Amazon distribution centers in the U.S., E.U. Some packages are shipped from third-party warehouses that are near your country.
3.HOW LONG DOES DELIVERY TAKE?
We need 3 to 5 working days to process the order, and usually 6-10 days later you will receive your products. The shipping is delayed for some objective or uncontrolled reasons. We will notice our customer ahead for delays.
4.HOW CAN I GET FREE SHIPPING FOR YOUR PRODUCTS?
We provide 100% FREE Shipping.(except some remote address)
5.WHAT SHIPPING CARRIERS DO YOUR USE?
We use all major carriers, such as dhl/fedex/ups/usps and local courier partners. You have the option to choose faster shipping if you pay the additional cost.

6.CAN I STILL CHANGE MY SHIPPING ADDRESS EVEN THOUGH THE PACKAGE HAS BEEN SHIPPED OUT?
Sorry, once shipped out, we can’t change the delivery address.
7.WHAT SHOULD I DO IF THE PACKAGE DAMAGED BY THE TRANSPORTATION WHEN FEDEX DELIVERY FOR ME?
If you received your order damaged, please contact the shipment carrier to file a claim. Please save all packaging materials and damaged goods before filing a claim.
8. SOME OTHER THINGS TO NOTE ABOUT YOUR ORDER
All orders must have a valid street address, expedited orders cannot be sent to PO Boxes.
Delivery to remote areas may incur additional cost up to $50 - $200.
Shipments cannot be rerouted once a package has been shipped.
Your order may require a signature.
what’s included
The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.
With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.
Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.
Specification
The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.
With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.
Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.
Shipping & Delivery
The E2000LFP Expandable Power Station combines power and flexibility in a portable package. Link it with two EB3000 battery packs to reach an impressive 8064Wh capacity - enough for almost any power need.
With 2000W AC output, it runs most household devices and tools without breaking a sweat. The advanced LiFePo4 batteries deliver outstanding durability, keeping 80% capacity even after 3500 charging cycles.
Charging is quick and flexible. The station accepts up to 1300W input across multiple ports, with 600W maximum solar input. Using solar panels, you'll fully charge in 2-3 hours. Need it faster? Dual AC adapters cut that time to just 1.5-2 hours.
Get Started In 3 Simple Steps
The whole process is easy – no salespeople involved.

Step 1: Choose Your System
Pick your products at direct-to-you prices. Browse complete systems and see exactly what you'll pay.

Step 2: Place Your Order
Quick online checkout with free U.S. shipping. Your order ships within 3-5 business days.

Step 3: Power Up
Professional guidance for setup and connection. Our team helps you get the most from your power station.
The Build The Power Difference
Here’s why you’ll prefer us over other providers.
![]() |
OTHER PROVIDERS | |
---|---|---|
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
What Our Customers Say
Direct experiences from homeowners who took control of their energy costs.
Frequently Asked Questions
How is Build The Power different from other companies?
Unlike traditional companies, we've removed the complex network of salespeople, project managers, and dealer fees. You browse and buy directly through our digital platform, cutting costs by 20-50% while still getting expert support when you need it.
How does your ordering process work?
Browse & Select – Find the product that suits your needs.Add to Cart – Click "Add to Cart" and proceed to checkout. Secure Payment – Complete your purchase using our secure payment options. Order Confirmation – You’ll receive an email confirmation with your order details. Shipping & Delivery – We process and ship your order as quickly as possible. A tracking number will be provided. If you have any questions, feel free to contact us!
Do you offer free shipping?
Yes! We offer free shipping on all orders, with no minimum purchase required. Enjoy hassle-free shopping without worrying about extra shipping costs. Once your order is processed, we’ll provide a tracking number so you can follow your shipment’s progress.
What's your return policy?
We offer a 30-day return policy for your peace of mind. If you're not completely satisfied with your purchase, you can return it within 30 days of delivery for a refund or exchange. The item must be in its original condition and packaging.
To start a return, contact our support team, and we’ll guide you through the process.
Can I get help with installation?
We do not offer installation services, but we’re happy to recommend trusted companies or services that can assist you. If you need help finding an installer, feel free to contact us, and we’ll point you in the right direction!