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All-in-One Power Solution for Off-Grid and Backup Systems
The LF-PV Series 12000W 48V Split Phase Pure Sine Wave Inverter Charger is a powerful and versatile energy solution that integrates a 48V DC inverter, AC battery charger, and automatic transfer switch into one compact system—ideal for off-grid homes, commercial sites, or backup power setups. Note: MPPT is not included in this model.
Output & Configuration:
Split-Phase Output: Requires 240VAC input and delivers both 120V and 240V AC output
Selectable Frequency: Supports both 50Hz and 60Hz via the SW4 switch
AC/Battery Priority Mode: Defaults to AC priority but can switch to battery priority using SW5
Advanced Features:
Automatic Generator Start (AGS) for low-voltage protection and seamless power continuity
Smart Remote Control and Battery Temperature Sensor (BTS) included for efficient monitoring and control
Compatible with 8 Battery Types, including LiFePO4, AGM, GEL, and Lead-Acid
Powerful Charging: Adjustable charging current up to 120A (0%–100%)
4-Stage Smart Charging with Power Factor Correction (PFC) ensures battery longevity and efficient energy use
Fast Transfer Time: Typical 8ms switching time from utility to battery
15-Second AC Recovery Delay safeguards sensitive appliances when using generators
Ideal Applications:
Perfect for powering refrigerators, freezers, microwaves, dryers, air conditioners, pumps, and other large residential or commercial electrical equipment.
Package Includes:
12000W 48V Split Phase Pure Sine Wave Inverter Charger
English User Manual
Remote Control
Battery Temperature Sensor (BTS) Cable
Unit Dimensions: 26.37 x 14.96 x 7.87 inches Unit Weight: 160 lbs Shipping Weight: 190 lbs Shipping Size: 32.67 x 21.25 x 15.35 inches
The Sungoldpower 12000W 48V split-phase inverter is designed to power entire homes, office spaces, or large RVs, making it an ideal choice for use with renewable solar energy and as a backup power supply for off-grid homes and businesses. This versatile inverter requires a 240V AC input and can deliver 110/120VAC or 220/230/240VAC output power suitable for a wide range of appliances.
Equipped with UPS functionality, this inverter charger ensures uninterrupted power supply for household electrical devices. With its internal transfer switch, there's no need for manual intervention during power outages—all selected devices are automatically connected to the backup power source, seamlessly maintaining operations without noticeable interruptions.
Featuring a built-in 120 amp battery charger, this inverter efficiently utilizes AC power from the grid or a generator to recharge various types of battery banks. With its low-frequency design and high-quality construction, it stands as the optimal choice for 48V home systems.
Crafted with durability and top-notch quality as the cornerstone of its design, this full sine wave power inverter is engineered to endure over a decade even in the most challenging environments. Our 12KW full sine wave inverter boasts minimal power loss, maintaining an average THD of 3%, with idle consumption standing at a mere 180 watts. Notably, its peak DC to AC efficiency reaches an impressive 90%, ensuring optimal performance in various applications.
The AC/battery priority switch, denoted as SW5, offers two operational modes. In AC priority mode, during a utility AC power outage, the transfer relay disengages, seamlessly shifting the load to the inverter output. Upon the restoration of AC utility power, the relay engages, smoothly transferring the load back to the AC utility source. In solar systems, opting for battery priority is recommended for enhanced efficiency and performance.
The Large Capacity Low Frequency Off-Grid Inverter is a versatile unit that integrates the functionalities of an inverter and battery charger to ensure continuous and uninterrupted power supply.
The high-capacity inverter features a direct-connect terminal block, enabling users to exceed its 12,000 watt capacity and utilize its 300% surge power (up to 36,000 watts for 20 seconds as previously mentioned). It serves as an essential emergency backup power solution for homes, businesses, and extensive off-grid applications.
It's an ideal solution for off-grid systems or as a backup power supply for home emergencies, ensuring uninterrupted power supply during outages. It seamlessly detects power loss and seamlessly switches to draw power from a connected battery bank, maintaining a constant power supply.
In emergency scenarios, the inverter functions as a genuine UPS (Uninterruptible Power Supply) thanks to its seamless transition transfer switch (batteries required). It efficiently converts DC to AC power and automatically charges a battery bank when city or generator power is accessible. The switch seamlessly alternates between city/generator power and inverter power without manual intervention.
Another common use of this inverter is for RV and vehicle modifications, such as powering lights and appliances in off-grid cabins. It's also suitable for supplying electricity to mobile businesses or offices, as well as running camping equipment. It's the optimal choice for large power systems.
Specifications
Continuous Output Power: 12.0KW
Surge Rating(20s): 36.0KW
Output Waveform: Pure Sine Wave
AC Output Voltage: 120V and 240V
AC Input Voltage: 240V ( not suitable for AC 120V input )
DC Battery Voltage: 48Vdc
Solar charger Current: 60Amp
AC Battery charger: 120±5Amp
Output Frequency: 50Hz /60Hz
Typical transfer Time: 10ms(Max)
DC Input:
Nominal Input Voltage: 48.0Vdc
Minimum Start Voltage: 40.0Vdc/ 42.0Vdc
Low Battery Alarm: 42.0Vdc / 44.0Vdc
Low Battery Trip: 40.0Vdc / 42.0Vdc
High Voltage Alarm: 64.0Vdc
Low Battery voltage recovery: 62.0Vdc
Power Saver on Idle Consumption: 40W
Power Saver off Idle Power: 180W
Charger :
Output Voltage: Depends on battery type
Battery Initial Voltage for Start-Up: 40-62.8V
Over Charge Protection Shutdown: 62.8V
Charger Breaker: 80A
Input Voltage Waveform: Sine wave (Grid or Generator)
AC input range:184-253Vac/140-270Vac
Nominal Input Frequency :50Hz or 60Hz (Auto detect)
Solar Charger controller:(you can disable our solar controller, and connect with an external solar controller)
Solar Input Voltage Range: 60-100Vdc
Max.PV Open Circuit Array Voltage: 105Vdc
Rated Charge Current: 60A
Over Charge Disconnection: 59.2V
Over Charge Recovery: 54.4V
Over Discharge Disconnection: 43.2 V(default)
Over Discharge Reconnection: 49.2V
Manuals and Downloads
Download LF-PV Series Pure Sine Wave Inverter User's Manual
FAQ
How to connect this to a home with the multiple phase system?
This inverter only supports dual phase outputs of 120V and 240V, and is not compatible with multiple phase systems.
This inverter can use 240v, and 120v at the same time?
You can use both 240V and 120V loads at the same time by connecting two cables to HOT1. However, please ensure that the 120V load does not exceed 50% of the inverter’s rated power, which is 6000W for 120V output.
What is the idle power consumption?
When the power saver is activated, idle consumption is 40W; with the power saver off, it’s 180W.
Warranty
2 Year Warranty
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Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
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Yes! By default, all products on Solar Guys Pro are 100% brand-new and in perfect condition.
If an item is used or refurbished, it will clearly indicate so in the title of the product as well as the discription.
For example, a used Battery will say:
XYZ Battery | 48V 100AH (REFURBISHED)
If you'd like to confirm, you can always send us a email at info@solarguyspro.com
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Customer Reviews
Overall rating: 4.8 / 5 from 166 reviews.
Tomorrow iam doing a video for YouTube on both my pectrons.and as soon as I can afford my 200 watt solar panles I will be doing another video on all of it..thank you Giddy up go Melody. Melody Johnson
These ten 560 watt panals made a nice addition to my current system. Waiting for clear skies to see how they really preform. They did good on a cloudy day.
SKU SGR-5KE 5000W - 48VDC - 120V -
10.24KWH - 6x 415 Watts Solar Panels
Setup was simple and straightforward. Followed the diagram for my system. Installation can be done with very basic electrical knowledge. This was a fun project seems to be good quality and performance. Batteries charge via generator for emergency backup. 6 panels pulling 2.2kw with 13a from 0% to 95% 4hrs. sunlight. This was a great investment. No more monthly bills.
Well, as you can see, it looks very nice. But the instructions hate to use the word sucks took it apart and put it together about four times before I finally got it right. I believe the instructions with four different unit. The instruction showed 3 shelves. Well, mine has 6 shelves instructions showed a lot of stuff different, but after I figured it out, after about 6 hours. It went together as a solid unit. I'm very happy with it.
I decided with early warning of a potential damaging winter weather to invest in a whole home battery backup system. The Anker Solix F3800 plus to include 400 watt solar panel and two expansion batteries and a tri-fuel gas generator. I still need to purchase and install the home smart panel which I’ll do before summer. Luckily I spent the time to cut down potentially damaging trees that may have been susceptible to icing, earlier last year.
Great quality switch. I did have to search youtube to make sure I wired it correctly. Once you understand how it works, it was pretty easy. Would buy again!
Very pleased with the performance of the system. Highly recommend Solar Guys Pro. Solar kit arrived fast and well packaged free from damage. Great communication as well.
Epoch 460Ah has massive reserve power compared to two deep cycle lead acid batteries. Very happy with my purchase. I also fixed the clutter from the factory power distribution and added a plexiglass cover to be able to see it all.
Love the Sun Gold it is fantastic. Do not be fooled by the look alsikes. They look like they were made on the same assembly line with just different paint. I have Eco worthy and they give me problems one of them is a daily issue to get it to start charging. Sun Gold never fails. All my Sun Gold hybrids never have issues so far. I also have a POWMR it turns off and on in the after noon constantle error codes 1,3, and 4 but I have been through the recommendations to fix the issues but still have the same problem. Do NOT stray away from buying the Sun Gold . The service guys here are great. They might be busy but they will get back with you pretty fast. From now on this is my one and only place to buy solr products.
I am a 70 year old disabled Vietnam vet. Every bit of the installation was done by me so good or bad it is mine. These inverters have their challenges but everything here was done in about 40 hours total. The wiring is very straight forward and the programming will make you scratch your head. SOLAR GUYS PRO and SUNGOLD technicians got on the phone with me and in 15 minutes my system was working properly and doing a very good job. 3300 watts total incoming solar landing on 12 total 12.8V 100AH batteries that are wired as Parallel Series to give 3 banks of 48 volt,100 Amp hour connections. Simplistic in operation but strong at the same time. If anyone wants to know the settings I use just ask.. Thank you Solar Guys. Michael
Dual battery setup with my Iceco APL 35 worked great. Temperatures were consistent on a five day trip to hot and muggy Tennessee. Li Time battery never went down below 90%. 200 watt Rich Solar panel mounted on the tonneau topper kept the lithium battery charged. For further insulation and protection, I wrapped the Iceco fridge with Reflective Insulation. My wife and I are delighted with this cooler. No more ice needed on our month long tent camping trips.
200w solar panel is great power i will never use all 1056wh from this anker power bank while I'm charging my familys phones and tablets even on a cloudy day. I got this to charge my e-bike and it will fully charge my 21amp hour e-bike battery great purchase anker is the only brand I'll purchase check out all there speed charging cables and batteries and solar guys saved me $100 over any other website buy Anker from Solar Guys
Keeps my house powered all night, only use 50% of battery next day by 10am its back at 100%. Left space for 2nd battery for the near future. Hoping to get it soon so I can do some EV charging at night.
In March this year (2025) I had a Epoch 12300A-H Essential Battery installed to replace my four older Trojan T-105 6 volt batteries. The Epoch had more capacity than the combined Trojans which surprised me. I like the performance and really liked the Epoch app which made monitoring the battery conditions very easy. After experiencing the Epoch performance for 2 months and discussing with my wife we decided to purchase a second Epoch 12300A-H to install in parallel with the first one. We are pleased with the extra capacity we now have and really liked how the Epoch app linked the 2 batteries together. Our 570 watt solar system will also do a good job of keeping these batteries up for more RVing adventures.
Installed in Monaco Diplomat Class A, diesel pusher, motohome.
I put this on my cargo trailer to power my portable freezers. I go fishing for five months and some times I’m in remote locations so being self sufficient is essential. I have been running the freezers for a few days now and they haven’t even put a dent in the power, batteries stay fully charged.
Relatively easy plug and play Install. Took us all day to finish, making sure our panel layout would work with 50 yr old trusses underneath. Will purchase again.
Store owner replied:
Hello Michael,
Thank you so much for your kind words! We're delighted to hear that you found the installation easy and that our product is meeting your expectations with its quiet performance. We're also glad you appreciated the free shipping.
Your feedback truly means a lot to us and inspires us to keep providing excellent service. If you ever have any questions or need assistance, please feel free to reach out.
Thanks again for choosing us!
Best regards,
Sarah
Customer Support Team
Super fast delivery. Product as advertised. Thank you
Store owner replied:
Hello Kevin,
Thank you for your wonderful review! We're delighted to hear that you enjoyed super fast delivery on your EG4 rack and that the product met your expectations as advertised!
Your satisfaction is our priority, and we appreciate your feedback. If you have any questions or need assistance in the future, feel free to reach out.
Thanks again for choosing us!
Best regards,
Sarah
Customer Support Team
Store owner replied:
Hello Dustin!
Thank you so much for your review! It sounds like you're loving your EG4 3kW Off-Grid Inverter!
We're thrilled to hear that the 3000 was easy to set up and use. Your kind words mean a lot to us.
If you need any further assistance, feel free to reach out.
Thanks again for choosing us!
Best regards,
Sarah
Customer Support Team
Was skeptical at first because this is a new business and prices sounded too good to be true. Well, time till shipped was a Lil slow but received my conduit box within a day once it did ship. These guys are legit as far as my first purchase.
Store owner replied:
Hello Roy,
Thank you for your review! We're glad to hear that you had a positive experience with your first purchase and that everything arrived as expected.
We appreciate your trust in our team as we grow and would love to assist you again in the future!
Best regards,
Sarah
Customer Support Team
These batteries are a huge upgrade customer is happy there power now carries over to the morning vs there 6 2 volt batteries wouldn’t and they like the Bluetooth function it’s easy to install the app and easy to read I’m seriously impressed on shipping time I really appreciate that thanks
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