
Felicity Solar FLS48050SG1M4 51.2V 2.56kWh LiFePO4 Battery
Floor-mounted LiFePO4 storage rated beyond 6000 cycles: the FLS48050SG1M4 carries a module nominal energy of 2.56kWh at 51.2V and weighs 124.0 kg net, 148.0 kg gross.
- Module Nominal Energy: 2.56kWh
- Module Nominal Capacity: 50Ah
- Module Nominal Voltage: 51.2V
In stock
Felicity Solar FLS48050SG1M4 51.2V 2.56kWh LiFePO4 Battery features
About the Felicity Solar FLS48050SG1M4 51.2V 2.56kWh LiFePO4 Battery
The Felicity Solar FLS48050SG1M4 is a floor-mounted LiFePO4 battery with a module nominal voltage of 51.2V, a module nominal energy of 2.56kWh and a module nominal capacity of 50Ah. It weighs 124.0 kg net and 148.0 kg gross, and it is rated for more than 6000 cycles at a depth of discharge of ≥95%. The system operating voltage runs from 44.8V to 57.6V, so a connected inverter sees a defined window between full charge and cut-off. Charging is specified from 0°C to 55 °C and discharging from -20°C to 55 °C, with storage held between 0°C and +35°C and installation below 2000m altitude. The battery designation recorded for this unit reads 150/102/[1P16S]M/-10+50/95. Because 124.0 kg net and 148.0 kg gross is the figure that sets the FLS48050SG1M4 apart, confirm the delivery route, the lifting arrangement and the floor loading before the unit arrives. Recorded certifications are CE-EMC and IEC 62619, and the warranty term is 5 Years. We are an authorised Felicity Solar distributor and can help you match the FLS48050SG1M4 to your inverter.
Specifications last updated 17 August 2026
Felicity Solar FLS48050SG1M4 51.2V 2.56kWh LiFePO4 Battery full specifications
Electrical
| Module Nominal Energy | 2.56kWh |
|---|---|
| Module Nominal Capacity | 50Ah |
| Module Nominal Voltage | 51.2V |
| System Operating Voltage | 44.8-57.6V |
| Depth of Discharge (DOD) | ≥95% |
| Cycle Life | > 6000 Cycles |
| Battery Designation | 150/102/[1P16S]M/-10+50/95 |
Mechanical
| Installation | Floor-Mounted |
|---|---|
| Package Dimension | 642X462X337 MM |
| Gross Weight | 148.0 kg |
| Net Weight | 124.0 kg |
Environmental
| Working Temperature Range | Charge: 0°C~55 °C Discharge: -20°C~55 °C |
|---|---|
| Storge Temperature Range | 0°C~+35°C |
| Altitude | <2000m |
Certifications
- CE-EMC
- IEC 62619
Related Products

Felicity Solar FLS48050SCG1 51.2V 2.56kWh LiFePO4 Battery
- Nominal Energy:2.56 kWh
- Nominal Capacity:50 Ah

Felicity Solar FLS48050SG1M2 51.2V 2.56kWh LiFePO4 Battery
- Module Nominal Energy:2.56kWh
- Module Nominal Capacity:50Ah

Felicity Solar FLS48050SG1M3 51.2V 2.56kWh LiFePO4 Battery
- Module Nominal Energy:2.56kWh
- Module Nominal Capacity:50Ah

Felicity Solar FLS48050SMG1 51.2V 2.56kWh LiFePO4 Battery
- Module Nominal Energy:2.56kWh
- Module Nominal Capacity:50Ah

Felicity Solar FLA12200 12.8V 2.56kWh LiFePO4 Battery
- Nominal Energy:2.56 kWh
- Nominal Capacity:200 Ah

Felicity Solar FLA24100 25.6V 2.56kWh LiFePO4 Battery
- Nominal Energy:2.56 kWh
- Nominal Capacity:100 Ah

Felicity Solar FLA24100PG2 25.6V 2.56kWh LiFePO4 Battery
- Nominal Energy:2.56kWh
- Nominal Voltage:25.6V

Felicity Solar FLB24100WG1 25.6V 2.56kWh LiFePO4 Battery
- Nominal Energy:2.56 kWh
- Nominal Capacity:100 Ah
Related Articles
How to Run a Whole House on Solar in Khartoum
An off-grid house is sized by surge, battery energy and charge current - and the surge row is the one that starts your fridge and your pump. Here are the published figures across the Felicity inverters and batteries, with the arithmetic to use them.
Read: How to Run a Whole House on Solar in Khartoum →How to Maintain Solar Batteries for Maximum Lifespan
Extend your off-grid battery life with proper maintenance. Covers LiFePO4, gel, and lead-acid battery care, temperature management, and charge settings.
Read: How to Maintain Solar Batteries for Maximum Lifespan →How to Protect Your Off-Grid Batteries from Overcharging
Overcharging destroys batteries fast. Learn how to set correct charge voltages, use temperature compensation, and configure your Felicity IVPS to prevent damage.
Read: How to Protect Your Off-Grid Batteries from Overcharging →