| Basic Parameters | Product Model | GBSFP4820T |
| Cathode Material | LiFePO₄ | |
| Nominal Voltage | DC 48V | |
| Nominal Charging Voltage | DC 53.5V | |
| Max. Charging / Discharging Current | 20A / 20A @ 25℃ | |
| Cycle Life | 3000 cycles @ 100% DOD, 25℃ | |
| Nominal Capacity | 20Ah @ 0.2C, 25℃ | |
| Weight | Approx. 18.0Kg | |
| Dimension (excluding mounting ear or handrail) | 397mm*200mm*163mm (W*D*H) | |
| Self Discharge @ 25℃ | Less than 5% in 90 days storage | |
| Communication Interface | RS485 | |
| Max. Quantity of Parallel Connection | RS485: 30 | |
| Dry Contact | PIN1 backup, PIN2 any alarm occurs | |
| Terminal | M6 torque 4 N·M | |
| Installation Type | Standard 19" rack | |
| Protection | Over temperature, over current, short circuit, over charge/discharge, etc. | |
| Certification | CE, UN38.3 | |
| Design Life | 10 years | |
| Storage Temperature | -20℃ to 65℃ | |
| Transportation Temperature | -20℃ to 65℃ | |
| Environment Parameters | ||
| Operating Temperature | Charging: 0℃ to 65℃ Discharging: -20℃ to 65℃ |
|
| Relative Humidity | 5% to 95% | |
| Max. Operating Altitude | 4000m (Each 200m increases in altitude will decrease the working temperature by 1℃ from 2000m to 4000m) | |
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