As residential solar installations continue to grow worldwide, homeowners are increasingly looking for dependable energy storage solutions that maximize solar self-consumption, reduce electricity costs, and provide uninterrupted backup power during grid outages.

GRANKIA GLM31451 16.07kWh home energy storage battery 51.2V 314AH is engineered to meet these demands with advanced LiFePO4 technology, high energy density, long cycle life, and intelligent battery management.

At the heart of the GLM31451 lies its high-density 16.07kWh capacity, achieved through 314Ah prismatic cells arranged in a 51.2V nominal configuration (16S architecture). This voltage standard aligns seamlessly with leading hybrid inverters.

Key Features

True 90% Depth of Discharge (DoD)

The GLM31451 home energy storage battery achieves 8,000+ deep cycles at 90% depth of discharge under standard laboratory conditions (25°C ambient).

8,000+ Deep Cycle Life 

Engineered with automotive-grade LiFePO4 solar battery cells, GRANKIA GLM31451 delivers 8,000 cycles at 90% DoD. For a typical home cycling once daily, this translates to over 15 years of reliable service – outlasting most inverters and solar panels.

Built-in Intelligent BMS with Active Cell Balancing

The proprietary 6-layer BMS provides:

• Overcharge / Over-discharge protection (cell voltage monitoring)

• Short circuit & overcurrent protection (automatic disconnect within 500µs)

• Temperature monitoring with charge/discharge derating (-20°C to +45°C operational)

• Active cell balancing – maintains all 16 series cells within ±10mV, preventing weak cells from limiting total capacity

• CAN/RS485 communication – native integration with leading hybrid inverters

Seamless Parallel Expansion (Up to 240kWh)

A single GLM31451 48 volt lithium battery supports a 5kW load continuously (10kW peak). By paralleling up to 15 units (using included communication cables), you can scale to over 240kWh of total storage – enough for whole-home backup including heat pumps, EV chargers, and electric ovens. The master-slave BMS configuration handles charge balancing automatically.

High Round-Trip Efficiency

Minimizing energy loss during charge and discharge cycles is critical for any residential energy storage battery. The GLM31451 achieves a DC-DC round-trip efficiency of 95% , meaning for every 10kWh of solar energy stored, you retrieve 9.5kWh. Lead-acid alternatives typically lose 15–20% to heat.

Technical Specifications

Why Home Energy Storage Battery is Ideal for Residential Solar Systems

A home’s energy storage capacity directly affects how much solar energy can be stored and used after sunset. With 16.07kWh of usable energy, the GLM31451 provides sufficient capacity to support critical household loads including:

• Lighting systems
• Refrigerators and freezers
• Air conditioners
• Televisions and entertainment systems
• Home office equipment
• Security systems
• Internet and communication devices

For many households, this capacity can provide overnight energy autonomy while significantly reducing dependence on utility electricity.

As a high-performance residential energy storage battery, the GLM31451 allows homeowners to store excess daytime solar generation and use it when electricity rates are highest, improving return on investment (ROI) for solar installations.

Advanced LiFePO4 Technology for Superior Safety

Safety remains one of the most important considerations when selecting a LiFePO4 solar battery.

The GLM31451 utilizes premium Lithium Iron Phosphate cells, which offer significant advantages over conventional lithium-ion chemistries:

Enhanced Thermal Stability

LiFePO4 chemistry is inherently more stable and resistant to thermal runaway, making it one of the safest battery technologies available for residential applications.

Longer Service Life

The battery delivers over 8000 charge-discharge cycles, translating into more than 15 years of reliable operation under normal usage conditions.

Environmentally Friendly

LiFePO4 batteries contain no cobalt and have lower environmental impact compared to many traditional lithium battery technologies.

Consistent Performance

Users benefit from stable voltage output and high charging efficiency throughout the battery’s operational life.

Reliable Solar Battery Backup System for Grid Outages

Extreme weather events, grid instability, and rising energy demands have increased the importance of a dependable solar battery backup system.

When paired with a hybrid inverter and solar array, the GLM31451 automatically stores surplus solar energy and supplies backup power whenever the grid becomes unavailable.

Key backup power advantages include:

• Instant power transition during outages
• Protection for sensitive electronics
• Increased energy independence
• Reduced reliance on diesel generators
• Quiet and maintenance-free operation

For homeowners seeking energy security, the GLM31451 residential energy storage battery serves as a reliable backup energy source that keeps essential appliances running when they are needed most.

Ideal Applications

The GLM31451 home energy storage battery is suitable for:

• Residential solar energy systems
• Hybrid solar installations
• Off-grid homes
• Emergency backup power systems
• Energy arbitrage applications
• Rural electrification projects
• Smart home energy management systems

Whether installed in a suburban home, remote cabin, or energy-independent residence, the battery delivers dependable performance and long-term value.

FAQ

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