Outdoor Battery · 16.07kWh · 51.2V
16.07kWh of Outdoor-Rated, UL9540A Certified Home Storage
A 16.07kWh 51.2V 314Ah floor-standing LiFePO4 battery rated IP65 for indoor or outdoor installation, UL1973 and UL9540A certified, CEC listed, with 8,000-cycle life, a touch screen and expansion to 16 units.

PowerMax 314 Outdoor Overview
The Sungold Power PowerMax 314 Outdoor stores 16.07kWh of energy in a single weather-resistant cabinet, so a home can bank daytime solar for evenings, outages and peak-rate hours without dedicating indoor wall space. The IP65 enclosure with natural cooling mounts on a pad beside the house or in the garage, and operates from 14°F to 131°F.
Inside, 314Ah of LiFePO4 cells deliver 7.68kW of rated DC power with 150A standard and 190A maximum charge/discharge current. The built-in BMS monitors state of charge, current and temperature and protects against overcharge, over-discharge and overheating, while a front touch screen and Wi-Fi/Bluetooth app show everything in real time. The battery is UL1973 and UL9540A certified and CEC listed – the certifications utilities and inspectors ask for.
CAN/RS485 communication makes the PowerMax compatible with SunGoldPower, Sol-Ark, Victron, Growatt, EG4, Schneider, Luxpower, Deye, MPP Solar, Megarevo and other inverters. With the Sungold SGS-12K18MAX hybrid inverter it forms a UL 9540 certified system. Up to 16 units connect in parallel for 257kWh, backed by a 10-year warranty and a 15-year design life.
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PowerMax 314 Outdoor Key Features
16.07kWh in one cabinet
314Ah at 51.2V, >96% usable depth of discharge and 7.68kW of rated DC power from a single unit.
IP65 outdoor rated
Dust and water resistant for pad or garage installation; natural cooling with no fans to fail.
UL1973, UL9540A, CEC listed
Certified cells, pack and fire-safety testing, plus CEC listing for California and utility programs.
8,000-cycle LiFePO4
Rated for 8,000 cycles at 80% DOD and 0.5C, with a 10-year warranty and 15-year expected life.
Touch screen + app
On-unit touch screen and Wi-Fi/Bluetooth monitoring for state of charge, current, voltage and alarms.
Wide inverter compatibility
CAN/RS485 closed-loop with SunGoldPower, Sol-Ark, Victron, Growatt, EG4, Schneider, Deye, Luxpower, MPP Solar and more; 16 units in parallel.

What’s in the Box
- 1×PowerMax 314 Outdoor 51.2V 314Ah 16.07kWh battery
- 1×User manual

PowerMax 314 Outdoor Common Questions
Can the PowerMax 314 be installed outside?
Yes. The IP65 enclosure is rated for indoor and outdoor use; discharge from 14°F to 131°F and charge from 32°F to 131°F.
Is it certified for permits?
It carries UL1973 and UL9540A certification and is CEC listed. Combined with the SGS-12K18MAX inverter it is a UL 9540 certified energy storage system.
How many units can I parallel?
Up to 16 PowerMax 314 batteries for 257kWh of storage.
What inverters does it communicate with?
SunGoldPower, Sol-Ark, Victron, Growatt, EG4, Schneider, Luxpower, Deye, MPP Solar, Megarevo, SMA, Solis, SAJ, Goodwe and others over CAN or RS485.



PowerMax 314 Outdoor Specifications
PowerMax 314 Outdoor 16.07kWh LiFePO4 Battery
| Battery | |
| Rated voltage | 51.2V |
| Voltage range | 44.8-57.6Vdc |
| Rated capacity | 314Ah |
| Rated energy | 16.07kWh (15.42kWh usable) |
| Depth of discharge | >96% |
| Rated DC power | 7.68kW |
| Standard charge / discharge current | 150A / 150A |
| Max charge / discharge current | 190A / 190A |
| Peak charge / discharge current | 220A (3s) |
| Breaker | 240A |
| Cycle life | 8,000 cycles (80% DOD, 0.5C, 25°C) |
| Max charging voltage | 57.6V |
| Over-discharge voltage | 44.8V |
| Max parallel | 16 units (257kWh) |
| Communication | CAN / RS485 / USB / Wi-Fi / Bluetooth |
| Screen | Touch screen |
| General | |
| Standards | UL1973, UL9540A, UN38.3, MSDS; CEC listed |
| Charging temperature | 32-131°F (0-55°C) |
| Discharging temperature | 14-131°F (-10-55°C) |
| Storage | 6 months at 25°C; 3 months at 35°C; 1 month at 45°C |
| Cooling | Natural cooling |
| Enclosure | IP65, indoor and outdoor |
| Dimensions | 41.26 x 18.11 x 10.67 in (1048 x 460 x 271 mm) |
| Weight | 271.17 lb (123 kg) |
| Warranty | 10 years (15-year design life) |












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