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SunGold Power 4000W DC 12V Split Phase Pure Sine Wave Inverter With Charger Delivers True Whole-Home Power for Reliable Off-Grid and Backup Energy Independence
When the grid goes down or you've decided to leave it behind entirely you need more than a basic inverter. You need a power center that acts like a professional electrical system, not a science experiment. The SunGold Power 4000W DC 12V Split Phase Pure Sine Wave Inverter With Charger is exactly that: a heavy-duty, low-frequency inverter-charger-transfer switch combination engineered to power everything from your kitchen refrigerator to your RV air conditioner to the tools running your mobile business without compromise.
This is the unit that homeowners reach for when they're serious about backup power, the one that off-grid builders spec into their solar setups, and the one that full-time RVers and liveaboards trust when "almost enough power" simply isn't an option.
At Outbound Power, we specialize in portable and backup power solutions because we know that when your power matters, you can't afford to guess. The SunGold Power 4000W DC 12V Split Phase Pure Sine Wave Inverter With Charger represents the kind of serious, well-engineered equipment we're proud to carry — the type of unit that earns its place in a system and keeps delivering for years without drama.
SunGold Power 4000W DC 12V Features
Pure Sine Wave Power Keeps Every Appliance Running Safely
This inverter produces clean, smooth power just like your wall outlet at home. That means your refrigerator, CPAP machine, TV, and sensitive electronics run safely without humming, overheating, or getting damaged over time.
Split-Phase Output Powers Both 120V and 240V at Once
Most inverters only handle half your panel. This one outputs both 120V and 240V simultaneously, so your well pump, electric dryer, and air conditioner stay powered — just like when the grid is fully on.
A Massive Surge Rating Starts Heavy Motors Without Failing
With 12,000 watts of surge power, this unit handles the startup spike from air conditioners, pumps, and compressors effortlessly. Most inverters trip under that load. This one holds steady and keeps everything running smoothly.
The Built-In Charger Keeps Your Batteries Full and Healthy
No separate charger needed. The built-in 120A smart charger works in three stages — bulk, absorption, and float protecting your batteries from overcharging and extending their lifespan, whether you use lead-acid, AGM, gel, or lithium.
Auto Generator Start Takes Over So You Never Have To
When your batteries run low, the inverter automatically starts your generator. Once batteries are fully charged, it shuts the generator off. No manual effort needed — perfect for remote cabins, off-grid homes, and unattended job sites.
You Choose AC or Battery Priority Based on Your Needs
A simple switch lets you decide whether the inverter pulls from the grid first or your battery bank first. That flexibility helps solar users maximize self-consumption while still having reliable grid backup when batteries run low.
The Remote Control Lets You Monitor Everything From Anywhere
Check battery voltage, input and output power, and system status right on the LCD display. Use the included remote control to manage the unit from across the room — no crawling behind panels or equipment required.
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
120V AC and 240V AC
AC Input
240V AC
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
10.5 – 11.0V DC
Low Battery Trip
10.0 – 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 (Grid or Generator)
140V – 270V AC / 184V – 253V AC (Selectable via SW2)
Overcharge Protection Shutdown
15.7V
Charge Settings
Selectable based on battery type
Adjustable Charge Current
0% – 100% / Off
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.
I will start off with saying the purchase experience I had with Jam was a pleasure.
She was great with answering my questions about the Cummins RS25 Generator prior to my purchase and kept me informed of delivery every step of the way. The generator was delivered in about a week, it was in perfect condition. The pricing on the Cummins RS25 was the best I was quoted. Great experience with Out Bound Power!
Thank you for your thoughtful review! We are glad to hear Jam took great care of you throughout the process. Clear communication and strong product knowledge are exactly what we aim to provide, especially on larger systems like this Cummins generator It is also great to hear everything arrived quickly and in perfect condition. We truly appreciate your business and your support. Please feel welcome to be in touch anytime if we can be of service again!
Thank you for taking the time to leave us a review. We're glad to hear that our SOLIX C2000 Gen 2 lived up to your expectations. If you ever have any questions or concerns, please don't hesitate to reach out to us.
Anker SOLIX BP3800 Expansion Battery | For SOLIX F3800 & F3800 Plus
Hi there! We're happy to know you are satisfied with the battery. If you have any questions or concerns, please don't hesitate to reach out to us. We're always here to help.
Just received my Ecoflow Delta 3 Max from Outboundpower. Free shipping from California to Florida. Fast process, good communication and lowest pricing. Outboundpower does it right!
Hi there, we are thrilled to hear that you had such a positive experience! Our team always strives to provide the lowest pricing and excellent communication. Enjoy your new power station and feel free to reach out to us if we can ever be of service again!
Can not say enough good things about my new EcoFlow Delta 2 Max! It checks all the boxes that i was looking for and the battery life is unbelievable. Purchasing from Outbound Power was also a great experience. Bill from outbound has provided a wealth of information outlining everything from delivery, to all the various services that Outbound provides. Thank You for making the process so simple! Highly recommend!
Thank you for taking the time to share your experience! We are especially happy the buying experience matched the product. We put a lot of focus on clear communication and making sure everything feels straightforward from start to finish. If you ever have questions as you continue using it or want to expand your setup down the road, we’re always here to help!
The team at Outbound Power were great. I was helped with things that I didn’t even know would be an issue. Straight talk, professional, and follow up. What else is there?
Thank you for the kind words! We really appreciate you taking the time to share this. We truly hope you are enjoying your E10. If we can ever be of service again, please feel welcome to reach out!
What a great unit. This thing ran a 15000 btu camper air conditioner on a 2006 unit at full blast for 110 minutes. At the same time it was charging the camper batteries. Amazing. I never thought I would see such a small unit do that. The two solar panels are nice. The most I could get in charge was 350 watts per hour which was not the advertised 400 in full sun on a hot day but I was still able to charge it from the 29 percent to 100 percent over ten hours which is pretty good. If I had room and the money I would buy a stronger panel the next time. This is my first time using anything solar.
Great product. I will buy jackery again and outbound power is the place to buy.
Hi Kurt, thank you for the detailed review. This is great to hear! This is the kind of feedback that is incredibly helpful for others considering a similar setup.
You are also spot on about solar input. Reaching around 350W instead of the full 400W is not unusual depending on heat, panel angle, and overall conditions. Getting from 29% to 100% in about ten hours is a strong result.
Thanks again for your support. We truly appreciate it. If we can ever be of service in any way, please feel welcome to reach out!
My new Ecoflow DPU battery was received, installed and working great with no problems, very quick delivery, and at the best possible price! Thank you to the Outbound Power staff!
Thank you so much for your kind words! We really appreciate you taking the time to share your experience. We’re glad to hear your battery is up and running smoothly and that everything arrived quickly. That’s exactly the experience we aim to deliver. If you ever need anything as you expand or use your system, we’re always here to help. Enjoy!
Anker SOLIX F3800 Plus Portable Power Station | 3840Wh | 6000W | 3200W Solar Input
Hi Marshall, thank you for your review of the Anker SOLIX F3800 Plus Portable Power Station. We hope this product continues to meet your power needs. Have a great day!