BSL 8.8kWh 51.2V 172Ah LiFePO4 Battery

BSL 8.8kWh 51.2V 172Ah LiFePO4 Battery

The BSLBATT B-LFP48-170E is a high-capacity low-voltage lithium iron phosphate battery designed for residential solar systems, backup power, off-grid installations and selected light-commercial energy-storage applications. With 8.806kWh nominal energy, 51.2V operating voltage and 172Ah capacity, it offers a practical balance between long runtime, strong discharge performance and a compact floor-standing format.

For customers who want to store more daytime solar energy, reduce grid dependence or keep essential loads operating during outages, the BSL 8.8kWh LiFePO4 battery provides a substantial energy reserve in a single module. Its modular design also supports scalable system planning when additional compatible capacity is required.

More stored energy for longer backup

The 8.806kWh nominal energy capacity gives a correctly designed system more stored energy to run essential household or business loads when solar production is low or the grid is unavailable. Actual backup time depends on the connected load, inverter efficiency, battery settings, operating temperature and permitted depth of discharge.

The battery uses a 16-series-cell configuration with a nominal voltage of 51.2V. This makes it suitable for compatible 48V-class hybrid and off-grid inverters that support the BSLBATT voltage range, current requirements and battery communication configuration.

High-current performance for demanding loads

The B-LFP48-170E is specified for a recommended discharge current of 100A and a maximum discharge current of 200A. It can provide a 250A peak discharge for one second, helping a correctly engineered system respond to short-duration load surges. The final output available to the property remains limited by the inverter, battery-management system, cabling, protective devices and the number of batteries installed.

For charging, the datasheet recommends 80A and specifies a maximum charge current of 100A. The recommended charging voltage is 54-55V, while the end-of-discharge voltage is specified at 47-48V. These settings must be configured according to the latest BSLBATT and inverter instructions.

LiFePO4 chemistry for long-term energy storage

Lithium iron phosphate technology is selected for stationary energy storage because of its stable chemistry, strong cycle performance and lower maintenance requirements compared with conventional lead-acid storage. BSLBATT specifies 99% efficiency and less than 1% self-discharge per month for this model.

The datasheet cycle-life graph indicates approximately 4,000 cycles at 80% depth of discharge under 25°C and 0.5C test conditions. BSLBATT also states a designed service life of 15-18 years and a 10-year warranty. Actual battery life depends on temperature, charge and discharge rates, depth of discharge, installation quality, firmware, maintenance and compliance with the manufacturer’s warranty requirements.

Built-in protection and practical system isolation

An integrated 250A DC breaker provides a convenient on/off and isolation point at the battery. The steel enclosure protects the internal prismatic LiFePO4 cells and electronics, while the battery-management system provides built-in monitoring and safety functions.

The battery also records monitoring and storage history, helping compatible systems track operating behaviour and identify abnormal conditions. Correct communication and inverter configuration remain essential because battery protection is not a substitute for properly sized external cabling, fusing, switchgear and installation protection.

Compatible solar and backup applications

The BSL 8.8kWh battery can be used in compatible grid-connected solar, off-grid solar, uninterruptible power supply and general energy-storage systems. The existing JC Solar Panels product guidance identifies communication compatibility with selected Victron, Sunsynk and Deye systems. Compatibility must still be confirmed for the exact inverter model, firmware version, communication cable and installation configuration before purchase.

For larger energy requirements, compatible BSL batteries may be combined according to the manufacturer’s approved parallel configuration. A qualified system designer must confirm battery quantity, current sharing, cable lengths, protection and communication architecture.

Durable floor-standing battery design

The battery measures 600 × 403.5 × 225mm (L × W × H) and weighs 73kg. Its compact “stubby” design provides substantial storage without requiring a tall wall-mounted battery. The unit must be installed upright on a stable surface in a dry, ventilated and protected location with adequate clearances.

Specified discharge temperature is -20°C to +60°C, charging temperature is 0°C to +45°C and storage temperature is -20°C to +55°C. Operating outside the approved environmental range can reduce performance, service life and warranty eligibility.

Certified for lithium battery transport and use

The datasheet lists CE certification for the battery, UN38.3 transport testing for the battery and RoHS 2.0 compliance for the cells. The battery is classified for shipping as UN 3480, Class 9. Lithium batteries require approved handling, packaging and transport procedures.

Professional installation and system design

The BSLBATT B-LFP48-170E must be installed and commissioned by a suitably qualified solar or electrical professional. The installer must confirm inverter compatibility, battery settings, communication, cable sizing, DC protection, earthing and the final installation environment.

The listed price covers the battery module only. An inverter, solar panels, battery cables, communication cable, external switchgear, mounting equipment, transport and installation are not included unless specifically stated in the quotation.

Frequently asked questions

How much energy does the BSL B-LFP48-170E store?

The official datasheet specifies 8.806kWh nominal energy, 51.2V nominal voltage and 172Ah capacity.

Which inverters can communicate with this battery?

The current JC Solar Panels listing identifies selected Victron, Sunsynk and Deye systems. Compatibility must be confirmed for the exact inverter model, firmware and communication setup before installation.

Can the battery run heavy loads?

It supports 100A recommended discharge current, 200A maximum discharge current and a 250A one-second peak. Actual load capability is also limited by the inverter, system cabling, protection and battery-bank design.

What is the expected cycle life?

The datasheet graph indicates approximately 4,000 cycles at 80% depth of discharge under 25°C and 0.5C laboratory conditions. Real-world cycle life varies with use and installation conditions.

Does it include installation and battery cables?

No. The product price covers the battery only unless the quotation specifically includes cables, switchgear, delivery or professional installation.