32kWh 51.2V 628Ah LiFePO4 Residential Solar Backup Battery for High-Consumption Homes

Product Summary
32kWh 51.2V 628Ah LiFePO4 Residential Solar Backup Battery 32kWh 51.2V 628Ah LiFePO4 Residential Solar Backup Battery. Designed as the battery storage component of a higher-capacity residential energy storage system, this LiFePO4 battery provides 32kWh of nominal energy from a 51.2V 628Ah platform. ...
Basic Properties
Place of Origin: China
Brand Name: Voltertech
Certification: MSDS , UN38.3
Model Number: BAT-32KWH-51.2V-W-2
Trading Properties
Minimum Order Quantity: 2 Units
Price: Negotiable
Payment Terms: L/C,T/T,Western Union
Supply Ability: 5000 Sets per Month
Product Description

32kWh 51.2V 628Ah LiFePO4 Residential Solar Backup Battery

32kWh 51.2V 628Ah LiFePO4 Residential Solar Backup Battery.

Designed as the battery storage component of a higher-capacity residential energy storage system, this LiFePO4 battery provides 32kWh of nominal energy from a 51.2V 628Ah platform.

It is intended for residential projects where smaller 5kWh, 10kWh or 16kWh battery configurations may not provide enough stored energy for the desired solar self-consumption or backup duration.

32kWh Nominal Energy per Battery
51.2V / 628Ah Low-Voltage LiFePO4 Platform
8000 Cycles Specified Cycle Life

Is a 32kWh Home Battery the Right Capacity for Your Household?

Battery capacity should be selected according to actual household energy use rather than choosing a larger battery simply because more capacity is available.

A 32kWh-class battery can be considered when a residential project requires more stored energy for evening consumption, longer backup duration or a larger solar storage requirement than smaller battery configurations can provide.

Daily Energy Use Households with higher daily electricity consumption may require more battery capacity to increase solar self-consumption.
Backup Loads Identify which appliances need to remain powered during an outage before determining battery capacity.
Backup Duration Longer required operating time generally increases the amount of stored energy required.
Inverter Capability The inverter must be matched to the battery voltage, current requirements and BMS communication.

How Long Can a 32kWh Home Battery Provide Backup?

Backup duration depends primarily on the average electrical load. The examples below are simple nominal energy comparisons and are not guaranteed operating times.

About 16 Hours Nominal comparison at a constant 2kW load
About 8 Hours Nominal comparison at a constant 4kW load
About 4 Hours Nominal comparison at a constant 8kW load

Actual backup time will differ because of inverter losses, battery operating limits, reserve settings and changing household loads.

Battery energy in kWh determines how much energy is stored. Inverter power in kW determines how much load can be supplied at one time. Both need to be considered when designing a residential backup system.

Solar Self-Consumption and Residential Backup Storage

The supplied product information lists solar storage and household electricity among the intended applications.

When connected to a compatible hybrid inverter and PV system, the battery can be used as the storage component of a residential system designed to store solar energy for later household use or backup operation.

The battery is not a complete all-in-one residential energy storage system by itself. The inverter, solar array and required electrical components need to be selected separately according to the project design.

16kWh or 32kWh Home Battery: How Should You Choose?

The choice mainly depends on how much stored energy the household actually requires.

16kWh-Class Storage May be sufficient when household backup loads and required operating time are moderate.
32kWh Storage Provides approximately twice the nominal stored energy of a 16kWh-class battery and may better suit projects requiring longer backup or more solar energy storage.
Best Selection Should be based on household consumption, backup loads, PV generation and the selected inverter rather than battery capacity alone.

Core Technical Specifications

Swipe left or right to view the complete specification table.

Parameter Specification
Battery Chemistry LiFePO4
Nominal Energy 32kWh
Nominal Voltage 51.2V
Nominal Capacity 628Ah
Recommended Charge Voltage 57.6V
Communication CAN / RS485
Parallel Expansion Up to 15 Units
Cycle Life 8000 Cycles (25°C, 100% DOD)
Specified Service Life 15 Years
Protection Rating IP54
Dimensions 720 × 811 × 489mm
Approx. Weight 247kg
Discharge Temperature -20°C to +55°C
Charge Temperature 0°C to +45°C

Residential Installation Planning for a 247kg Battery

The battery measures 720 × 811 × 489mm and has an approximate weight of 247kg. The installation location and supporting surface should therefore be considered as part of the residential system design.

The enclosure protection rating is IP54. Final installation conditions should follow the specified protection rating, temperature limits and requirements of the complete electrical system.

The product information also describes a modular design with flexible brackets, thermostatic control, remote update and monitoring functions.

Can the 32kWh Residential Battery Be Expanded Later?

Yes. The supplied specification supports up to 15 compatible battery units in parallel.

This provides an expansion path for projects that later require more storage than one 32kWh battery can provide. Fifteen units represent up to 480kWh of nominal battery capacity based on 32kWh per unit.

For a residential installation, however, the practical number of batteries should be determined from the actual energy requirement, inverter capability, communication configuration and electrical design rather than the maximum parallel quantity alone.

Hybrid Inverter Compatibility Should Be Confirmed Before Ordering

The battery provides CAN and RS485 communication for connection with compatible inverter systems.

The supplied parameter sheet lists multiple inverter brands, but compatibility should be checked using the exact inverter model because voltage settings, firmware and BMS communication protocols can differ between products from the same brand.

Frequently Asked Questions

Q1. Is a 32kWh battery enough for a house?

It depends on the home's electricity consumption, backup loads and required operating time. A single battery provides 32kWh of nominal energy, but actual system suitability should be determined from the household's real energy requirements.

Q2. How long will a 32kWh battery power a home?

Runtime depends on average load. As a nominal comparison, 32kWh corresponds to about 16 hours at 2kW, 8 hours at 4kW or 4 hours at 8kW before considering inverter losses, battery reserve settings and changing loads.

Q3. Can a 32kWh battery provide whole-home backup?

It may form part of a whole-home backup system, but battery capacity alone cannot determine this. The inverter output, household peak load, backup circuit design and required operating time must also be considered.

Q4. Should I choose a 16kWh or 32kWh battery for home energy storage?

A 32kWh battery provides approximately twice the nominal stored energy of a 16kWh-class battery. The larger capacity may be useful when longer backup or more solar energy storage is required, while a smaller battery may already be sufficient for lower household demand.

Q5. What size inverter should I use with a 32kWh battery?

Inverter size should be determined by the electrical loads that need to operate, not by the battery's 32kWh energy capacity alone. The inverter must also match the battery voltage, allowable current and communication protocol.

Q6. Can this 51.2V battery work with a 48V hybrid inverter?

51.2V LiFePO4 batteries are commonly used in 48V-class energy storage systems. The exact inverter operating voltage, charging settings and CAN or RS485 communication protocol should still be confirmed before installation.

Q7. Can solar panels connect directly to this 32kWh battery?

The battery is designed as the storage component of an energy storage system. A compatible inverter or charging system is required between the PV array and battery according to the complete system architecture.

Q8. Can I add another 32kWh battery later?

Yes. The specification supports up to 15 compatible units in parallel. The final quantity should be checked against the inverter and complete electrical system before expansion.

Q9. Is this 32kWh battery suitable for outdoor installation?

The enclosure is rated IP54. Installation conditions should therefore be selected according to this protection rating, the specified operating temperatures and the requirements of the complete residential energy storage system.

Q10. What information should I provide before ordering a 32kWh home battery system?

Provide the inverter brand and model, daily household electricity consumption, maximum backup load, required backup duration and solar PV capacity. These details help determine whether 32kWh is an appropriate storage capacity and confirm system compatibility.

Does Your Home Really Need 32kWh of Battery Storage?

Send us your household electricity use, inverter model, backup loads, solar PV capacity and required backup time. We can help check whether a 32kWh battery or a smaller residential storage configuration better matches your project.

Check Your Home Battery Capacity
Product Details
Highlight:

32kWh Residential Solar Backup Battery

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51.2V LiFePO4 Home Battery

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628Ah Residential Energy Storage Battery

Home Energy Scenario: High-Consumption Residential Properties
Backup Objective: Longer-Duration Household Power Reserve
Solar Usage Goal: Increase On-Site Solar Energy Utilization
Storage Planning: Suitable For Larger Residential Energy Demand
System Matching: Low-Voltage Hybrid Solar & Battery Systems
Expansion Purpose: Future Capacity Growth Without Replacing The Base System
Project Type: Villas / Large Homes / Residential Solar Projects
Customer Focus: Homeowners / Solar Contractors / ESS Distributors

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