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SunGold Power 4000W DC 12V Pure Sine Wave Inverter With Charger Delivers Pure Sine Power, Built-In Charging, and Auto-Transfer So That Your Home, RV, or Off-Grid System Stays Running No Matter What
When the grid goes down, the campground hookup disappears, or you're running power tools fifty miles from the nearest outlet, you need more than a basic inverter. You need a complete power management system. The SunGold Power 4000W DC 12V Pure Sine Wave Inverter With Charger is exactly that a low-frequency powerhouse that combines a 4,000-watt pure sine wave inverter, a multi-stage smart battery charger, and an automatic AC transfer switch into one intelligent, rack-ready unit. Whether you're backing up your home, outfitting your RV, living off-grid, or running a mobile worksite, this LFP Series inverter charger is built to handle the heavy lifting and the everyday essentials, simultaneously and without complaint.
At Outbound Power, we specialize in portable and backup power solutions for people who depend on reliable electricity whether you're at home, on the road, or completely off-grid. Our team understands these systems because we live and breathe them. If you have questions about whether this inverter charger is the right fit for your battery bank, solar array, or generator setup, we're here to help you get it right the first time.
SunGold Power 4000W DC 12V Features
It pushes out 12,000 watts of surge power for 20 seconds.
Big appliances like air conditioners and refrigerators need extra power to start up. This inverter handles that surge without tripping or shutting down, so your equipment starts smoothly every single time without any hiccups.
It delivers clean pure sine wave power that protects your electronics.
Pure sine wave output works just like wall outlet power from your home. Your laptops, medical devices, and smart appliances run safely without buzzing, overheating, or damage giving you total peace of mind every day.
It automatically starts your generator when the battery runs low.
You never have to babysit your power system again. When battery voltage drops, the inverter starts your generator on its own. Once charging is done, it shuts it off — completely hands-free and worry-free.
It switches between AC and battery power in just 10 milliseconds.
The built-in transfer switch moves between power sources almost instantly. Most electronics won't even notice the switch happened. This keeps your devices running without restarts, lost data, or annoying flickering lights.
It lets you adjust the charging current from zero to full power.
You control exactly how fast your batteries charge. Turn it down for smaller generators or turn it up for large battery banks. This flexibility protects your generator and maximizes your charging efficiency every time.
It supports nine different battery types with a smart three-stage charger.
Whether you use AGM, flooded lead-acid, or lithium batteries, this charger knows exactly how to charge them correctly. The three-stage process extends battery life significantly, saving you money on replacements over the long run.
It comes with an LCD screen, remote control, and temperature sensor.
You always know what your power system is doing. Check voltage, load, and battery status from across the room using the remote. The temperature sensor automatically adjusts charging to keep your batteries safe in any weather.
SunGold Power 4000W DC 12V Warranty
SunGold provides a limited warranty policy, ensuring the absence of defects in materials, workmanship, and performance during the warranty period.
What's Included
1 x SunGold Power 4000W DC 12V
1 x Remote Control
1 x English Manual
1 x BTS Cable
SunGold Power 4000W DC 12V Specifications
Continuous Output Power
4000W
Surge Rating
12000W (20 seconds)
AC Output
120VAC
AC Input
120VAC
Output Wave
Pure Sine Wave (Bypass Mode)
Typical Transfer Time
10ms (Max)
Nominal Efficiency
>88%
Nominal Input Voltage
12.0V DC
Minimum Start Voltage
10.0V DC
Low Battery Alarm
10.5V – 11.0V DC
Low Battery Trip
10.0V – 10.5V DC (Selectable via SW1)
High Voltage Alarm
16.0V DC
Low Battery Restart Voltage
13.0V DC
Idle Consumption
45W
Power Saver Mode Idle Consumption
18W
Charger Rate
120A ± 5A
AC Input Range
90V – 135VAC / 100V – 135VAC (Selectable via SW2)
Overcharge Protection Shutdown
15.7V
Charge Settings
Adjustable (0% – 100%) based on battery type
Charging Type
3-Step Intelligent Battery Charger
SunGold Power 4000W DC 12V Manual
Common Customer Questions
Get answers to the most frequently-asked questions customers ask before placing an order.
Is Outbound Power an Authorized Dealer?
Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.
How long will it take for my order to arrive?
Shipping times vary depending on your location and the product or products ordered.
Order Processing Time Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.
After order processing is complete, you will receive tracking information to monitor your order while it is in transit.
Order Shipping Time Following processing, it may take between 3 and 8 days to arrive, depending on your location.
Please refer to the product page for your item and reference the estimated delivery time frame for more details.
Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.
What are your shipping rates? Do you offer free shipping?
Everything on our store ships for free. Really!
What is Outbound Power's return policy?
Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.
Are Outbound Power products used/old/refurbished?
Everything sold on our website is brand-new.
Do you price match?
No — we price BEAT! Please refer to our Price Beat Promise for full details.
Great pricing. When I am ready to upgrade, I plan on doing business with you all again. You value customers and that is greatly appreciated. Thanks for everything.
Thank you for your kind words and support! We’re glad to hear you’re satisfied with our pricing and service. We look forward to assisting you with your upgrade when you’re ready. Thanks again for choosing Outbound Power, and please let us know if we can ever be of service.
Exact fit to the Cummins 4500i small battery compartment.
Thank you for your great review! We're glad the battery fit perfectly and met your expectations. If you need anything else, please don’t hesitate to reach out, we’re always here to help.
Hi Sam, thank you for your fantastic review! We're so glad to hear the Pecron Trolley Kit works great for you. If you need any further assistance, feel free to reach out. Cheers!
This was purchased to run a small compressor when our crews are on job sites where running and moving power cords is inconvenient and time consuming. The generator is lightweight and perfect for the task. We're now investing in a second unit.
Thank you for the great review! We’re glad to hear it is making work easier. We truly appreciate your business. Please let us know if there is anything more we can do to be of service!
I like outbound because they give a good deal discount called. They help when you call nice people when you call the number they answer and help thank you
Hi Melvin, thank you for your kind words! We're glad you had a great experience and appreciate your support. If you need anything else, we're here to help!
Excellent service with excellent pricing. By far the best price I could find on the battery. Delivery arrived in perfect condition. love all the tracking information.
Thank you so much for the kind review! We’re glad we could provide a great price and that everything arrived to your satisfaction. We also appreciate you mentioning the tracking updates. We want every customer to feel informed and confident from order to delivery. Thanks again for choosing Outbound Power and please let us know if we can ever be of service!
Thank you for the positive feedback! We strive to provide excellent customer service and we're glad to hear that you had a great experience with us. We appreciate your support and hope to continue serving you in the future!
Outbound Power did a great job with communication and answered all my presale questions. Shipping was prompt - and was patient with me during a small snafu when my neighbor was being “helpful” and took one of the boxes and neglected to tell me. Great prices too!
Hi James, thank you for taking the time to leave us a review. We are thrilled to hear that you had a positive experience with our team! Thank you for your business and please feel welcome to reach out anytime if we can be of service!
Fantastic service from Jam at Outbound Power made this an easy choice.
We are in the installation phase now and are excited to have a reliable system for our power backup needs.
Thank you for your kind words and for choosing Outbound Power for your backup power needs. We're happy to hear that Jam provided fantastic service and helped make the decision process easy for you. Our goal is always to help customers find a reliable backup power solution that fits their needs.
We’re excited for you to begin the installation phase and are confident you’ll be pleased with the Anker SOLIX E10 Smart Hybrid Whole-Home Backup System. Thank you again for choosing Outbound Power!
This works very well. I can charge my unit and expansion batteries more than twice as fast as using a 120 volt wall outlet. I think it also helps with the battery temperature.
Hi there, thank you for your positive feedback! We're glad to hear that the cable is working well for you and is able to charge your unit and expansion batteries at a faster rate. If we can be of service again, please let us know!