1 / 8
PowerMax 51.2V 314AH Outdoor Energy Storage Battery UL1973 & UL9540A CEC Listed
PowerMax 51.2V 314Ah Outdoor Energy Storage Battery
A high-capacity outdoor LiFePO4 battery built for serious 48V solar storage, backup power, and expandable home energy systems. The PowerMax 314Ah combines 16.07kWh of storage, IP65-rated protection, smart monitoring, inverter communication, and UL1973 / UL9540A certification in a weather-ready battery platform.
Outdoor-ready 48V energy storage
Built to store solar energy for outages, night use, and backup power
The PowerMax 51.2V 314Ah Outdoor Energy Storage Battery is designed to absorb solar energy during the day and keep it available for nighttime use, power outages, and emergency backup. With 16.07kWh of capacity in a single battery, it gives larger homes and off-grid systems a stronger foundation than stacking smaller batteries from the start.
Feature-rich battery platform
High-capacity storage with the controls installers actually need
A battery this large needs more than raw capacity. The PowerMax adds BMS protection, real-time monitoring, inverter communication, parallel expansion support, and an outdoor-ready enclosure so it can fit into larger solar storage and backup systems with cleaner visibility.
- 51.2V / 314Ah LiFePO4 battery platform with 16.07kWh of stored energy.
- LCD display plus WiFi / Bluetooth monitoring for easier status checks.
- RS485 / CAN communication support for compatible inverter systems.
- IP65-rated protection for dust and water resistance in indoor or outdoor setups.
Built for exposed installation areas
Outdoor protection without treating the battery like an afterthought
The IP65-rated design gives the PowerMax better protection against dust and water exposure than standard indoor-only battery cabinets. That makes it a practical option for garages, utility areas, covered outdoor walls, sheds, workshops, and other solar storage environments where protection matters.
Wireless monitoring and display
Check battery status without guessing
The PowerMax supports real-time monitoring through WiFi / Bluetooth connectivity and a built-in LCD display. That gives homeowners and installers better visibility into battery operation, state of charge, and system status during daily use.
Quick status from the front panel
The LCD display gives direct battery visibility for basic checks during installation, maintenance, and day-to-day operation.
Wireless visibility for easier management
WiFi / Bluetooth monitoring support helps make the battery easier to check without treating it like a sealed black box.
Better insight across a larger system
For solar storage and backup systems, real-time monitoring makes it easier to understand battery status before, during, and after outages.
Expandable battery bank
Start with one large battery or scale into a bigger bank
A single PowerMax battery already delivers a large amount of storage, but the system is also designed for expansion. SunGoldPower lists support for up to 16 batteries in parallel, giving properly designed systems room to grow for longer outages, heavier loads, and larger solar arrays.
16.07kWh in one unit
Use one PowerMax as a high-capacity 48V storage foundation for backup power, solar storage, or off-grid energy systems.
Add storage as energy needs grow
Parallel additional units when the system needs longer runtime, more overnight storage, or better storm-season backup reserves.
Design around serious energy storage
With support for up to 16 units in parallel, the PowerMax platform is aimed at properly designed residential, off-grid, and light commercial storage builds.
Inverter communication
Designed to fit into smarter 48V solar systems
The PowerMax supports RS485 / CAN communication for compatible inverter systems, helping the inverter and battery share important operating information. SunGoldPower highlights compatibility with major inverter brands including SunGoldPower, Sol-Ark, Victron, Schneider, EG4, Growatt, LuxPower, and others.
- RS485 / CAN communication support for compatible inverter integration.
- Useful for larger battery banks where system coordination matters.
- Works best in a properly configured 48V inverter/charger system.
- Confirm compatibility, firmware, communication wiring, and inverter settings before installation.
Best-fit applications
For homes, off-grid systems, backup power, and larger solar storage builds
The PowerMax 314Ah Outdoor Battery is best matched with larger 48V power systems where high-capacity storage, outdoor-ready protection, smart monitoring, and inverter communication all matter. It is a strong fit for customers building a serious battery bank rather than a small plug-and-play backup setup.
High-capacity backup for essential loads
Store energy for outages, nighttime use, and critical-load backup when paired with the right inverter, wiring, and transfer equipment.
Storage foundation for 48V solar systems
Use the 314Ah battery platform for cabins, workshops, remote properties, and off-grid systems that need more usable storage.
Protected design for tougher environments
The IP65-rated enclosure makes this battery a better fit for garages, utility spaces, covered outdoor walls, and other protected installation locations.
Energy reserve for blackouts and storms
Keep a large battery reserve available for grid interruptions, solar production gaps, and emergency backup planning.
| PowerMax 51.2V 314AH Outdoor Energy Storage Battery UL1973 & UL9540A CEC Listed | |
| Model SKU | PowerMax 314 Outdoor |
|---|---|
| MODEL | |
| Product Type | Battery |
| ELECTRICAL | |
| Battery Chemistry | LiFePO4 (LFP) |
| Rated Voltage | 51.2 V |
| Voltage Range | 44.8 to 57.6 VDC |
| Rated Capacity | 314 Ah |
| Rated Energy | 16.07 kWh |
| Usable Energy | 15.42 kWh |
| Maximum Depth of Discharge | Greater than 96% |
| Rated DC Power | 7.68 kW |
| Standard Charge / Discharge Current | 150 A / 150 A |
| Maximum Charge / Discharge Current | 190 A / 190 A |
| Peak Charge / Discharge Current | 220 A / 220 A for 3 seconds |
| Breaker Current | 240 A |
| Maximum Parallel Units | 16 |
| Maximum continuous Discharge Rate | 7.68kW |
| Max. Charging / discharging current | 190A/190A |
| Peak charging current | 220A(3S) |
| Peak discharging current | 220A(3S) |
| Battery type | LFP |
| Max. number of parallel | 16 |
| Lithium Battery Standard | UN38.3, MSDS, EN55032, EN55024, |
| Listed Capacity | 314AH |
| Listed System Voltage | 51.2V |
| CONNECTIONS | |
| Communication | CAN, RS485, USB, Wi-Fi, and Bluetooth |
| PHYSICAL | |
| Dimensions | 41.26 × 18.11 × 10.67 in (1048 × 460 × 271 mm) |
| Weight | 271 lb (123 kg) |
| OPERATING LIMITS | |
| Cycle Life | 8,000 cycles at 80% depth of discharge, 0.5C, and 25°C |
| Charge Temperature Range | 32°F to 131°F (0°C to 55°C) |
| Discharge Temperature Range | 14°F to 131°F (-10°C to 55°C) |
| Ingress Protection | IP65 |
| Certifications | UN38.3, MSDS, EN55032, EN55024, EN61000-3-2, EN61000-3-3, UL1973, UL9540A |
| Life cycle(80% DOD,0.5C,25℃) | 8000 Cycles |
Frequently Asked Questions
Clear answers to common questions about this product, setup, compatibility, and use.
