Sungold Power 11.4kW 48V Split Phase Hybrid Solar Inverter + PowerMax 51.2V 314AH Outdoor Energy Storage Battery
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Not Sure This Is The Right System?
Request a Free Solar ProposalThe Sungold Power 11.4kW 48V Split Phase Hybrid Solar Inverter + PowerMax 51.2V 314AH Outdoor Energy Storage Battery is a complete whole-home energy solution designed for reliable backup power, efficient solar integration, and long-lasting energy storage. Featuring a powerful 11.4kW split-phase inverter with 200A whole-home backup capability and up to 16 parallel batteries (16.07kWh each), this system ensures dependable performance for both off-grid and grid-tied applications. With advanced safety certifications including UL1973 & UL9540A, IP65 outdoor protection, and intelligent monitoring via wireless and app integration, this package is engineered for durability, safety, and ease of use.

High-Capacity Inverter (11.4kW) – Provides robust split-phase AC power with 200A passthrough, ensuring seamless whole-home backup.
Whole-Home Backup Ready – Supports critical loads and entire home circuits with 120/240V split phase output and rapid transfer time (<10ms).
Expandable Energy Storage – Includes the PowerMax 51.2V 314Ah LiFePO4 battery with 16.07kWh capacity, expandable from 1 to 16 units in parallel.
Smart Energy Management – Wireless monitoring via app and LCD display for real-time system control and energy insights.
Durable Outdoor Design – IP65/NEMA 3R rated inverter and rugged outdoor-rated PowerMax battery design.
Certified Safety – UL1973, UL9540A, UL1741, IEEE1547 certifications for compliance, reliability, and safe operation.


Everything you need is included with your product.
| Category | Specification |
| Max. PV Input Power | 15,000W |
| Max. PV Voltage | 600V |
| Start-up Voltage | 90V |
| MPPT Operating Voltage Range | 70V – 540V |
| Max. Input Current per MPPT | 30A / 22A / 22A |
| No. of MPPT | 3 |
| Category | Specification |
| Compatible Battery Type | Lithium-ion / Lead-acid |
| Battery Voltage Range | 40 V – 64 V |
| Max. Charge/Discharge Current | 210 A / 210 A |
| Max. Charge/Discharge Power | 10,000 W / 10,000 W |
| Category | Specification |
| Max. AC Output Power (PF=1) | 11,400 W |
| Max. AC Output Current | 47.5 A |
| Max. Grid Passthrough Current | 200 A |
| Nominal Grid Voltage | 120/240 V (Split phase) / 208 V (2/3 phase) V AC |
| Nominal Grid Frequency | 50/60 Hz |
| Power Factor | >0.99 @ rated power (Adjustable 0.8LD ~ 0.8LG) |
| Category | Specification |
| Max. AC Output Power (PF=1) | 11,400 W |
| Nominal Output Current | 41.7 A |
| Peak Power | 20,000 VA |
| Nominal Output Voltage | 120/240 V (Split phase) / 208 V (2/3 phase) V AC |
| Nominal Output Frequency | 50 Hz / 60 Hz |
| Transfer Time | <10 ms (typical) |
| THDV | <3% @ 100% R Load |
| Category | Specification |
| Protection Categoryput Power (PF=1) | Class I |
| AC Overcurrent Protection | Yes |
| DC/AC Overvoltage Protection | DC Type II, AC Type III |
| AC Short Circuit Protection | Yes |
| DC Reverse Protection | Yes |
| Surge Arrester | DC Type II, AC Type III |
| RSD | Yes |
| Category | Specification |
| Ingress Protection Degree | IP65 / NEMA 3R |
| Operating Temperature Range | -25°C ~ 60°C (<45°C derating) |
| Dimensions (W×H×D) | 17.6 × 35.5 × 10.6 in (448 × 901 × 270 mm) |
| Weight | 103.6 lbs / 40 kg |
| Category | Specification |
| Display | Wireless & APP + LED + LCD (Optional) |
| Communication Interface | CAN (for BMS), RS485 (for meter), RS485, CAN (for parallel), Optional: WiFi / LAN |
| Category | Specification |
| Product Model | PowerMax 314 Outdoor |
| Battery Type | LiFePO₄ (Lithium Iron Phosphate) |
| Rated Voltage | 51.2 V |
| Rated Capacity | 314 Ah |
| Rated Energy | 16.07 kWh |
| Max Continuous Current | Charge: 190 A, Discharge: 190 A |
| Max Charging Voltage | 57.6 V |
| Over Discharge Voltage | 44.8 V |
| Peak Charging Current | 220 A (3S) |
| Dimension (H×W×D) | 41.3 × 18.1 × 10.7 in |
| Weight | 271.2 lbs |
| Max Parallel Number | Up to 16 pcs |
Can I start with one battery and add more later?
Yes, the system supports 1 to 16 PowerMax batteries in parallel, allowing you to expand capacity as your energy needs grow.
How much backup time can one battery provide?
Backup duration depends on load. Each 16.07kWh battery can support basic home essentials for several hours, expandable with additional batteries for longer runtimes.
Can the system power an entire home?
Yes, the 11.4kW inverter with 200A passthrough is designed for whole-home backup, supporting large appliances, HVAC systems, and essential circuits.
What’s the lifespan of the battery?
The LiFePO4 cells are rated for over 6,000 cycles, which typically translates to 10–15 years of reliable use depending on charging habits.
Is the system safe to install outdoors?
Yes, the PowerMax battery is outdoor-rated and built with IP-rated protection. The inverter is designed with IP65/NEMA 3R protection, ensuring safe operation in various weather conditions.
Can the system be monitored remotely?
Yes, it comes with Wi-Fi/LAN monitoring and a mobile app for real-time performance tracking, energy flow monitoring, and system diagnostics.
What’s the warranty coverage?
The inverter includes a 10-year warranty, and the PowerMax battery includes manufacturer coverage as detailed in its warranty policy.
Shipping is free across the Lower 48. No fuel surcharges, no residential fees, and no liftgate charge on freight orders. The price you see is the price you pay. Read our full Shipping Policy here.
Most orders leave the warehouse in 1 to 2 business days and arrive within 3 to 10 business days. We send tracking the moment it ships.
Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.
Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.
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