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51.2V 100Ah all-in-one home ESS with stacked LiFePO4 battery modules and LCD displays

51.2V All-in-One Home ESS | 100Ah, 200Ah and 280Ah

• MOQ: 10 Units
• Production Lead Time: Approximately 25–35 Days After Technical Confirmation
Shipping: Sea Freight, Approved Dangerous-Goods Air Freight, or Land Transport
• Trade Terms: EXW / FOB / CIF
•Payment Terms: T/T / L/C
• Sea / Air / Land Shipment: 10FT, 20FT, 40FT, 60FT

Category Page：All-in-One Home ESS ，PowerWall HESS ，Inverter

The FSEBATTERY 51.2V home energy storage system is a modular LiFePO4 battery solution designed for residential solar storage, backup power, and customized energy projects. Available in 100Ah, 200Ah, and 280Ah configurations, the system provides flexible energy capacity for homes, solar installers, distributors, and energy-storage integrators.

Three Capacity Options for Different Energy Requirements

The 51.2V home energy storage system is available in three capacity options. All models operate at a nominal voltage of 51.2V, while the selected amp-hour capacity determines the total nominal energy available for solar storage and backup power.

Nominal battery energy is calculated as follows:

Nominal energy = Nominal voltage × Nominal capacity ÷ 1,000

51.2V 100Ah — 5.12kWh

The 100Ah model provides 5.12kWh of nominal energy. It is suitable for essential household loads, smaller photovoltaic systems, and projects that may require modular expansion later.

51.2V 200Ah — 10.24kWh

The 200Ah model provides 10.24kWh of nominal energy. It offers longer backup time and greater solar self-consumption capacity for medium-sized residential energy systems.

51.2V 280Ah — 14.33kWh

The 280Ah model provides approximately 14.33kWh of nominal energy. It is intended for homes with higher daily energy use, larger photovoltaic arrays, or longer backup-power requirements.

This 51.2V home energy storage system combines scalable battery capacity, smart BMS protection, optional inverter communication, and a durable metal enclosure. It can be configured according to the required backup duration, household load, installation environment, and communication protocol.

Actual usable energy depends on the permitted depth of discharge, inverter efficiency, battery temperature, protection settings, cable losses, and reserved battery capacity.

Modular and Expandable Battery Design

The modular structure allows the 51.2V home energy storage system to be configured according to the initial project requirement while supporting planned capacity expansion. Single-unit, double-layer, and multi-layer configurations can be considered according to available space, inverter capacity, and household energy demand.

Flexible Capacity Expansion

Single-unit, double-layer, and multi-layer configurations can be considered according to household energy use, available installation space, and inverter capacity.

This flexible structure helps distributors and installers serve projects with different energy-storage requirements without changing the basic 51.2V system platform.

Important Expansion Requirements

Additional battery modules should use compatible:

Cell chemistry and nominal voltage
Battery capacity and BMS firmware
CAN or RS485 communication protocol
State of charge
Cable length and conductor size
Fuse, breaker, and busbar ratings

Smart BMS Protection and Communication

Each 51.2V home energy storage system can be configured with a JBD or JK battery management system. The BMS monitors cell voltage, battery current, temperature, state of charge, balancing status, alarms, and protection conditions.

Battery Protection Functions

Depending on the selected BMS and project configuration, protection functions may include:

Cell overvoltage protection
Cell undervoltage protection
Charge and discharge overcurrent protection
Short-circuit protection
High- and low-temperature protection
Cell-voltage monitoring
State-of-charge monitoring
Cell balancing
Alarm and fault recording

Monitoring and Communication Options

Available communication and monitoring options include:

Bluetooth
Mobile APP
WiFi
4G
GPS
LCD display
RS485
RS232
CAN bus
RJ45
Modbus

Electrical Performance and Inverter Compatibility

All three configurations use a nominal voltage of 51.2V, a maximum charge voltage of 58.4V, and a specified discharge cut-off voltage of 40V.

The maximum continuous charge current and maximum continuous discharge current are both listed as 100A.

Battery-Side Power

At nominal voltage, the theoretical battery-side DC power is:

51.2V × 100A = 5.12kW DC

This value should not be interpreted as guaranteed 5.12kW AC inverter output. Actual current increases as battery voltage decreases, and inverter conversion losses must also be considered.

Information Required for Inverter Matching

Before ordering, please provide:

Inverter brand
Exact inverter model
Rated AC output power
Peak or surge power
Battery voltage range
CAN or RS485 protocol
Connector and pin definition
Maximum battery charge current
Maximum battery discharge current

Final compatibility should be confirmed according to inverter efficiency, battery voltage under load, surge demand, BMS current limits, and cable voltage drop.

Metal Enclosure and Installation Design

The battery uses a metal enclosure with M6 or M8 terminal options. The product structure is designed for floor-standing residential energy-storage applications.

Dimensions and Weight

Model	Dimensions (L × W × H)	Weight
51.2V 100Ah	580 × 420 × 430mm	45.5kg
51.2V 200Ah	580 × 420 × 430mm	142kg
51.2V 280Ah	580 × 420 × 615mm	197kg

Final dimensions and weight should be confirmed against the approved production drawing and selected optional configuration.

Installation Considerations

The installation location should provide:

Adequate floor-loading capacity
Sufficient service clearance
Accessible battery isolation
Protected cable routing
Suitable ventilation
Protection from flooding and direct heat
Safe handling space

The heavier configurations may require lifting equipment and more than one trained installer.

IP65 Protection and Temperature Range

The battery enclosure is specified with an IP65 rating. This provides a defined level of dust and water-ingress protection but does not mean that the battery can be submerged.

Environmental Protection

For outdoor or semi-outdoor projects, the system should still be protected from:

Flooding
Standing water
Direct roof runoff
Long-term direct sunlight
Unsealed cable entries
Corrosive environments
Sources of excessive heat

Protected outdoor installation is recommended where applicable.

Operating Temperature Limits

Operating condition	Temperature range
Charging	0°C to 50°C
Discharging	−20°C to 60°C
Storage	−10°C to 50°C

The standard battery should not be charged below 0°C unless an approved low-temperature charging strategy is installed.

Optional self-heating can be configured for cold-climate projects. Heating activation temperature, power consumption, control logic, and charging interlock should be confirmed during technical evaluation.

This product family is specified for charging at 0°C to 50°C and discharging at −20°C to 60°C. Confirm the approved datasheet, selected BMS configuration, and local installation requirements before ordering.

Residential Solar and Backup Applications

The 51.2V home energy storage battery can be integrated into residential photovoltaic, hybrid inverter, backup-power, and off-grid energy systems.

Solar Energy Storage

Excess photovoltaic energy generated during the day can be stored in the battery and used later when solar production decreases.

This can improve residential solar self-consumption and reduce dependence on grid electricity where the system design and local regulations allow.

Backup Power

When paired with a compatible inverter and transfer system, the battery can supply selected household circuits during a grid outage.

Backup time depends on:

Usable battery energy
Average household load
Inverter efficiency
Depth-of-discharge settings
Temperature
High-power appliance use

Estimated backup time can be calculated as:

Estimated backup time = Usable battery energy ÷ Average load

Hybrid and Off-Grid Systems

The battery can also be considered for hybrid and off-grid projects when the inverter voltage range, communication protocol, charge settings, and protection devices are compatible.

Technical Specifications

Electrical Specifications

Specification	100Ah	200Ah	280Ah
Lithium cell type	LiFePO4	LiFePO4	LiFePO4
Nominal voltage	51.2V	51.2V	51.2V
Nominal capacity	100Ah	200Ah	280Ah
Nominal energy	5.12kWh	10.24kWh	14.33kWh
Maximum charge voltage	58.4V	58.4V	58.4V
Discharge cut-off voltage	40V	40V	40V
Maximum continuous charge current	100A	100A	100A
Maximum continuous discharge current	100A	100A	100A
Internal resistance	≤10mΩ	≤10mΩ	≤10mΩ
Self-discharge	≤2% per month	≤2% per month	≤2% per month
Cycle life	>6,000 cycles*	>6,000 cycles*	>6,000 cycles*

*Cycle life depends on depth of discharge, temperature, charge and discharge rate, and end-of-life capacity criteria. Final test conditions should be stated in the approved datasheet.

Mechanical and Environmental Specifications

Specification	100Ah	200Ah	280Ah
Dimensions	580 × 420 × 430mm	580 × 420 × 430mm	580 × 420 × 615mm
Weight	45.5kg	142kg	197kg
Battery case	Metal	Metal	Metal
Terminal	M6/M8	M6/M8	M6/M8
IP rating	IP65	IP65	IP65
Charge temperature	0°C to 50°C	0°C to 50°C	0°C to 50°C
Discharge temperature	−20°C to 60°C	−20°C to 60°C	−20°C to 60°C
Storage temperature	−10°C to 50°C	−10°C to 50°C	−10°C to 50°C

Optional Functions

Available options include:

Self-heating
Bluetooth
Mobile APP
WiFi
4G
GPS
LCD display
RS485
RS232
CAN bus
RJ45
Modbus
Power switch
Circuit breaker
Active balancing
Customized logo and labeling

Certification Documentation and Warranty

Certification and transport documents must match the exact battery model, BMS configuration, capacity, and destination market.

Available Project Documentation

Depending on the selected model and order requirements, available documentation may include:

Product datasheet
User manual
Battery wiring diagram
BMS communication protocol
MSDS
UN38.3 test report or test summary
Shipping classification documents
Quality inspection report
Certification documents applicable to the selected model
Written warranty terms

Certification status should be confirmed using the report number, tested model, issuing laboratory, applicable standard, and issue date.

Limited Warranty

The battery is available with a 10-year limited warranty, subject to the written warranty terms for the approved product configuration.

Warranty terms should define:

Warranty start date
Covered components
Permitted operating conditions
Cycle or energy-throughput limits
Installation requirements
Exclusions
Repair or replacement procedure
Transportation responsibilities

OEM and ODM Home Energy Storage Solutions

FSEBATTERY supports OEM and ODM services for battery distributors, solar installers, system integrators, and private-label energy-storage brands.

Available Customization

Customization options may include:

Battery capacity
BMS brand and current rating
CAN or RS485 communication
Inverter protocol development
Bluetooth and mobile APP
WiFi, 4G, and GPS
LCD display
Self-heating
Active balancing
Power switch
Circuit breaker
Terminal type
Enclosure appearance
Silk-screen, label, or laser logo
Packaging
User manual

Information Required for a Quotation

Please provide:

Required voltage and capacity
Inverter brand and model
CAN or RS485 protocol
Continuous and peak load
Required backup duration
Installation environment
Minimum and maximum temperature
Optional functions
Destination country
Required certification documents
Logo and packaging requirements
Estimated order quantity

Customization may affect pricing, minimum order quantity, development time, production lead time, certification scope, and warranty conditions.

Specifications
Lithium Cell Type	LiFePO4	LiFePO4	LiFePO4
Nominal Voltage	51.2V	51.2V	51.2V
Nominal Capacity	100Ah	200AH	280AH
Nominal Energy	5.12kWh	10.24 kWh	14.33 kWh
Max Charge Voltage	58.4V	58.4V	58.4V
Discharge Cut-off Voltage	40V	40V	40V
Max Continues Charge Current	100A	100A	100A
Max Continues Discharge Current	100A	100A	100A
Dimensions(L x W x H)	580 x 420 x 430 mm	580 x 420 x 430 mm	580 x 420 x 615 mm
Weight	45.5kg	142kg	197kg
Cycle Life	>6000 Cycles	>6000 Cycles	>6000 Cycles
Internal Resistance	≤10 mΩ	≤10 mΩ	≤10 mΩ
Self-discharge	≤2% per month	≤2% per month	≤2% per month
IP Rating	IP65	IP65	IP65
Charge Temperature	0°C ~ 50°C	0°C ~ 50°C	0°C ~ 50°C
Discharge Temperature	(-20°C ~ 60°C)	(-20°C ~ 60°C)	(-20°C ~ 60°C)
Storage Temperature	(-10℃ ~ 50℃)	(-10℃ ~ 50℃)	(-10℃ ~ 50℃)
Self-heating	Optional	Optional	Optional
LCD Display	Optional	Optional	Optional
Optional Upgrades	Self-heating / Bluetooth / APP / WiFi / 4G / GPS / LCD Display / RS485 / RS232 / CAN bus / RJ45 / Modbus / Power Switch / Circuit Breaker / Active Balance / etc	Self-heating / Bluetooth / APP / WiFi / 4G / GPS / LCD Display / RS485 / RS232 / CAN bus / RJ45 / Modbus / Power Switch / Circuit Breaker / Active Balance / etc	Self-heating / Bluetooth / APP / WiFi / 4G / GPS / LCD Display / RS485 / RS232 / CAN bus / RJ45 / Modbus / Power Switch / Circuit Breaker / Active Balance / etc
BMS	JBD BMS/JK BMS	JBD BMS/JK BMS	JBD BMS/JK BMS
Terminal	M6 / M8	M6 / M8	M6 / M8
Battery Case	Metal	Metal	Metal
Warranty	10 Years	10 Years	10 Years
Silk-screen / Label / Laser Logo	Yes	Yes	Yes
User Manual	Yes	Yes	Yes
OEM / ODM	Yes	Yes	Yes
Certifications	CE / MSDS / UN38.3/UL	CE / MSDS / UN38.3/UL	CE / MSDS / UN38.3/UL

Specifications

Datasheet

User Manual

Frequently Asked Questions (FAQs)

What is the difference between the 100Ah, 200Ah, and 280Ah models?

All three models use a nominal voltage of 51.2V. The 100Ah version provides 5.12kWh, the 200Ah version provides 10.24kWh, and the 280Ah version provides approximately 14.33kWh of nominal energy.

The correct model depends on household energy use, required backup time, photovoltaic-system size, inverter capacity, and future expansion requirements.

Can this battery work with a 5kW inverter?

The battery is rated for a maximum continuous discharge current of 100A. At 51.2V, this equals approximately 5.12kW of nominal DC power.

A 5kW AC inverter may require more than 100A when inverter losses and lower battery voltage are considered. The inverter model and complete system configuration must therefore be evaluated before ordering.

Can the battery be charged below 0°C?

The specified charging temperature is 0°C to 50°C.

Charging below 0°C should only be allowed when the battery is equipped with an approved self-heating system and low-temperature charging protection.

Does IP65 mean the battery is completely waterproof?

No. IP65 provides defined protection against dust and water ingress but does not mean that the battery can be submerged.

The installation should still be protected from flooding, standing water, direct roof runoff, and unsealed cable entries.

Can additional battery modules be added later?

Expansion may be possible when the additional modules use compatible cells, voltage, BMS firmware, communication protocols, protection devices, and cable specifications.

Future expansion should preferably be planned during the initial system design.

What information is needed for an OEM or ODM quotation?

Please provide the required capacity, inverter model, communication protocol, continuous and peak load, installation temperature, optional functions, destination country, certification requirements, logo requirements, and estimated order quantity.

Request a Technical Proposal

To receive an accurate battery recommendation and quotation, send us your inverter model, household load, photovoltaic-system capacity, expected backup duration, installation environment, communication requirements, and estimated order quantity.

Our team will evaluate battery capacity, BMS configuration, inverter compatibility, optional functions, project documentation, and OEM or ODM requirements before preparing the proposal.

Do you support OEM/ODM?

We provide flexible OEM/ODM services to meet customer needs, including comprehensive support such as structure customization, BMS adjustment, and appearance design.