Battery | energy storage for solar power | with smart BMS | 5,4kWh | 51,2V | IP65 | Bluesun Solar

Technical Specifications:

Number of batteries: 1 pc

Nominal voltage: 51.2V

Nominal capacity: 5.427 kWh * N (number of modules)

Usable capacity: 4.884 kWh * N

Charging voltage: 58.4V

Discharge voltage: 40V

Recommended charge/discharge current: 100 A

Maximum charge/discharge current: 100 A

Peak charge/discharge current: 120 A (up to 15 seconds)

Operating temperature: -10 ℃ ~ +50 ℃

Charging temperature: 0℃ ~ 50℃

Discharge temperature: -10℃ ~ 50℃

Storage temperature: -20℃ ~ 60℃

Relative humidity: 5 % ~ 85 % RH

Altitude: not more than 4000 m

Communication interfaces: RS485, RS232, CAN

Certificates: CE, IEC, UL, UN38.3, MSDS

Design life: >10 years

Cycle life: >6000 cycles

Installation location:

Working environment: Indoor installation, away from direct sunlight and wind, without conductive dust or corrosive gases.

Must be located far from the sea to avoid salt and high humidity exposure.

Installation surface must be flat and stable.

No flammable or explosive materials near the installation site.

Optimal ambient temperature: 15 ℃ ~ 30 ℃

Avoid dusty or cluttered areas.

Features:

BMS (Battery Management System): overcharge, over-discharge, short circuit, overcurrent, and temperature protection

Single cell balancing for longer lifespan

Intelligent control with integrated monitoring module

Parallel and series connection support for voltage/capacity expansion

Low self-discharge: can be stored up to 10 months without recharge

No memory effect: allows frequent partial charging

Silent operation: passive cooling without fans

Compact and lightweight for easy installation in limited spaces

Applications:

Solar energy storage systems

Uninterruptible power supply (UPS) systems

Backup power for telecom towers

Energy Storage Systems (ESS)

Microgrids and off-grid systems

Mobile trailers and electric equipment containers

Electrical installations in buildings with high autonomy demands

Advantages:

Long lifespan (>6000 cycles)

High safety due to LiFePO₄ chemistry

High charge/discharge efficiency

Supports high current

Expandable system with additional modules

Wide operating temperature range

Minimal self-discharge

Environmentally friendly – no heavy metals or toxic substances

Disadvantages:

Higher initial investment compared to lead-acid systems

Careful management required for serial/parallel configuration

Not all inverter systems are compatible – compatibility check required