Clean power conversion
Helps turn stored battery energy into usable AC power for everyday loads, backup circuits, and off-grid applications.
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SunGoldPower
12KW 48V All-in-one Hybrid Solar inverter | Whole Home Backup (200A)| SGS-12K18MAX 12KW 48V All-in-one Hybrid Solar inverter | Whole Home Backup (200A)| SGS-12K18MAX
SKU: SGS-12K18MAX
$2,990.00
$3,938.00
Save $948.00
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Key features
- Batt. Recharging voltage After the battery is full, the inverter stops charging, and when the
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SunGoldPower Solar Inverter
12KW 48V All-in-one Hybrid Solar inverter | Whole Home Backup (200A)| SGS-12K18MAX
The 12KW 48V All-in-one Hybrid Solar inverter | Whole Home Backup (200A)| SGS-12K18MAX is built for serious solar and backup power projects where dependable conversion, battery integration, and flexible power management matter. It gives installers and system owners a cleaner path to connect solar, storage, and household loads in one stronger energy setup.
12KW48V200AHybridWhole Home BackupIn StockSKU SGS-12K18MAX
Solar and storage control
Brings solar input, battery storage, and load support together for a cleaner hybrid power setup.
Backup-focused design
A strong fit for homes and properties that need dependable power during outages and daily energy use.
Built to anchor your power system
Hybrid inverter projects need a balanced setup that can manage solar input, stored energy, and everyday loads without making the installation feel scattered. This model is intended for builds where backup readiness and system flexibility are both priorities.
- Use it as the core conversion point for a battery-backed power system.
- Designed for whole-home backup projects that need a stronger pass-through path.
- Built for hybrid systems that combine solar, battery storage, and load support.
- A practical fit for backup power, off-grid power, workshops, mobile builds, and residential energy projects.
- Helps keep system design cleaner when you need dependable AC output from stored energy.
Compare before you choose
Compare continuous AC output, battery voltage, surge behavior and PV or charger functions for the intended installation.
See the 11.4kW 48V Split Phase Hybrid Solar Inverter | Whole Home Backup (200A) for another SunGoldPower inverter option.
Package Includes
1x 12KW 48V All-in-one Hybrid Solar inverter | Whole Home Backup (200A)| SGS-12K18MAX
Includes the selected item based on the current package option.
| 12KW 48V All-in-one Hybrid Solar inverter / Whole Home Backup (200A)/ SGS-12K18MAX | |
| Selected variant SKU | SGS-12K18MAX |
|---|---|
| MODEL | |
| MODEL | SGS-8K12MAX SGS-10K15MAX SGS-12K18MAX Settable |
| Product Type | Inverter |
| ELECTRICAL | |
| PV Input Power | 18 kW total |
| Maximum PV Open-Circuit Voltage | 550 VDC |
| MPPT Quantity | 2 |
| Whole-Home Backup Current | 200 A |
| Battery type | Ternary LFP User- |
| Rated Output Power | 12000 W |
| Rated Output Voltage | 120/240Vac(Split-phase) 120/208V(Three-phase) √ |
| Waveform | Pure Sine Wave |
| Rated Battery Voltage | 48Vdc |
| Voltage Range | 40-60Vdc √ |
| No. of MPPT Trackers | 2 |
| Max. Input Current | 32A/32A |
| Input Voltage Range | 90-140Vac |
| MPPT Tracking Efficiency | 99.9% |
| Max. Efficiency | 97.5% |
| Listed System Voltage | 48V |
| Design | All-in-one solar charge inverter |
| CONNECTIONS | |
| Communication | port RS485 / CAN / USB / Dry contact √ |
| PHYSICAL | |
| Dimensions | 33.1 × 19.6 × 11.2 in |
| Weight | 105.8 lb |
| CT Output Cable Length | 4 m |
| OPERATING LIMITS | |
| Ingress Protection | IP65 |
| Operating Temperature Range | -13°F to 140°F (-25°C to 60°C), with derating |
| Protection Degree | IP65 |
| 2. RS485 Address | Set the RS485 address for |
| (6) Output phase voltage | Set the output voltage in the off-grid state, which refers to the phase |
| voltage of L1-N and L2-N. The options you can set are | 100V,105V,110V, 115V,120V,127V. |
| Current transformer (CT) dimensions | (mm) |
Frequently Asked Questions
Clear answers to common questions about this product, setup, compatibility, and use.
Is the SGS-12K18MAX an inverter only or a combined power center?
It combines 48V battery conversion with the solar-charging, AC-input, and operating modes published for this exact model. That can reduce separate equipment, but it does not eliminate array design, battery protection, transfer planning, or permitting.
Why can the SGS-12K18MAX shut down under load even with charged batteries?
The 48V bank must support the inverter's continuous DC demand, startup surge, and conversion loss without exceeding battery or BMS limits. Size parallel batteries, busbars, short copper conductors, lugs, disconnects, and fusing as one high-current circuit.
Will every AC connection on the SGS-12K18MAX carry its full advertised power?
This listing is identified for published AC output. Verify appliance voltage, frequency, neutral and grounding requirements, and any hardwire or transfer limits before connecting it to a distribution system.
Can panel wattage alone prove solar compatibility with the SGS-12K18MAX?
This model includes solar-charging or hybrid functions described on its exact listing. Build the array from the published MPPT voltage window, cold-weather open-circuit voltage, input-current limits, tracker layout, and permitted PV power—not from panel wattage alone.
What transfer and grounding decisions remain for the SGS-12K18MAX?
No inverter should be assumed suitable for unrestricted grid export or direct panel connection. Confirm the SGS-12K18MAX's listed operating modes, transfer rating, neutral-ground behavior, overcurrent protection, rapid-shutdown or disconnect requirements, permits, and utility rules with a qualified installer.