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SunGoldPower PowerMax 51.2V 314AH Outdoor Energy Storage Battery UL1973 & UL9540A

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PowerMax 314 Outdoor

$2,995.00
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SunGoldPower PowerMax 314 Outdoor Battery | 51.2V 314Ah | UL1973 & UL9540A

Rugged, High-Capacity Outdoor Energy Storage for Whole-Home & Commercial Systems

The SunGoldPower PowerMax 314 is a premium 51.2V 314Ah (16.07kWh) LiFePO₄ outdoor energy storage battery designed for reliable off-grid, backup, and whole-home energy solutions. Built with a waterproof and dustproof enclosure and certified to UL1973 and UL9540A standards, it delivers long-lasting, safe, and high-performance energy storage even in harsh environments.

Engineered for durability and high-capacity applications, the PowerMax 314 provides seamless integration with 48V inverters and chargers, making it ideal for residential, commercial, and remote solar or backup energy systems.

Key Features

  • Massive 16.07kWh Capacity: 51.2V, 314Ah energy storage supports whole-home usage, critical loads, and large-scale off-grid setups.
  • Outdoor-Rated Enclosure: Fully waterproof and dustproof for reliable operation in challenging weather and environmental conditions.
  • Certified Safety Standards: UL1973 and UL9540A certified, ensuring safety, fire protection, and compliance for residential and commercial energy storage.
  • Long Cycle Life: Built with high-quality LiFePO₄ cells for consistent performance and extended lifespan over thousands of cycles.
  • High Compatibility: Works seamlessly with 48V chargers, inverters, and energy management systems.
  • Durable & Reliable: Engineered to withstand harsh outdoor conditions while maintaining stable, safe power delivery.

Ideal Applications

  • Whole-home solar storage and backup power
  • Commercial energy storage systems
  • Off-grid cabins, remote sites, and emergency power setups
  • Large-scale solar + battery installations

What’s Included

  • 1 × SunGoldPower PowerMax 314 Outdoor Battery (51.2V 314Ah, 16.07kWh)
  • 1 × Battery Mounting/Installation Hardware Kit
  • 1 × CAN/RS485 Communication Cable
  • 1 × User Manual

Specification Sheets:

SunGoldPower PowerMax 51.2V 314AH Outdoor Energy Storage Battery UL1973 & UL9540A Specifications (PDF)

Manuals:

SunGoldPower PowerMax 51.2V 314AH Outdoor Energy Storage Battery UL1973 & UL9540A Installation Guide & Owner Manual (PDF)

Specifications

Specification Details
Electrical Characteristics
Rated Voltage51.2 V
Voltage Range44.8 – 57.6 Vdc
Rated Capacity314 Ah
Rated Energy16.07 kWh
Usable Energy15.42 kWh
Max Depth of Discharge>96%
Rated DC Power7.68 kW
Charging & Discharging
Standard Charge Current150 A
Standard Discharge Current150 A
Max Charge Current190 A
Max Discharge Current190 A
Peak Charge Current220 A (3 s)
Peak Discharge Current220 A (3 s)
Max Charging Voltage57.6 V
Over-Discharge Voltage44.8 V
Protection & Control
Breaker Current240 A
Cooling MethodNatural Cooling
Protection RatingIP65
User Interface
DisplayTouch Screen
Lifecycle
Cycle Life8,000 cycles (80% DOD, 0.5C, 25°C)
Mechanical
Dimensions (L × W × H)41.26 × 18.11 × 10.67 in
Weight271.17 lbs
System Integration
Max Parallel Units16
Communication InterfacesCAN / RS485 / USB / WiFi / Bluetooth
Environmental
Charging Temperature Range32°F – 131°F
Discharging Temperature Range14°F – 131°F
Installation EnvironmentIndoor & Outdoor
Storage Conditions
Storage Time / Temperature6 months @ 25°C; 3 months @ 35°C; 1 month @ 45°C
Certifications
Compliance StandardsUN38.3, MSDS, EN55032, EN55024, EN61000-3-2, EN61000-3-3, UL1973, UL9540A

Understanding Your Power Needs

Power Calculation Guide

Sizing Metric Formula & Example
Energy Consumption (Wh) Formula: Watts × Hours
Example: 60W × 4 hrs = 240 Wh
Battery Capacity (Ah) Formula: Watt-hours ÷ System Voltage (V)
Example: 240 Wh ÷ 12V = 20 Ah
Inverter Size (W) Formula: Total Watts × 1.25 (safety margin)
Example: 300W × 1.25 = 375W → Use 400W inverter
Total Load Power (W) Formula: Sum of all appliance watts used simultaneously
Example: Light (10W) + Fan (75W) = 85W
Runtime (hrs) of Battery Formula: (Battery Ah × Voltage) ÷ Total Load (W)
Example: (100Ah × 12V) ÷ 240W = 5 hrs

Find Your Power Match

Need / Application System Recommendation
Basic lighting + phone charging Recommended Battery: 50Ah – 100Ah (12V)
Inverter Size: 100W – 200W
Notes: For small backup setups
Home office (laptop, fan, TV) Recommended Battery: 150Ah – 200Ah (12V or 24V)
Inverter Size: 500W – 1000W
Notes: For moderate usage with 4–6 hours of backup
Home backup (fridge, lights) Recommended Battery: 200Ah+ (24V or 48V recommended)
Inverter Size: 1000W – 1500W
Notes: Ideal for longer backups or heavier loads
Business / shop power backup Recommended Battery: 300Ah+ (48V system)
Inverter Size: 2000W – 3000W
Notes: Suitable for commercial setups or extended power outages

Why Shop With Us

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  • Real Human Support, 7 Days a Week: Reach us by phone, email, or live chat — no bots, no overseas call centers, just experts who know off-grid power systems.
  • Expert Energy Guidance: Our solar and backup energy specialists are here to help with system design, product questions, and installation tips.
  • USA-Based Service: Local, knowledgeable, and friendly support right here in the U.S.
  • Secure Payments: Shop confidently with encrypted, secure checkout protecting your personal and payment information.
  • Built for Energy Independence: Whether powering a cabin, prepping for emergencies, or going off-grid, our products are chosen for performance, reliability, and sustainability.

SunGoldPower PowerMax 51.2V 314AH Outdoor Energy Storage Battery UL1973 & UL9540A

$2,995.00