48V 50Ah Lithium-ion Solar Battery Energy Storage Lifepo4 Battery Backup System
Specification of battery pack
| Items | Standard | Comments |
| Nominal voltage | 48V | |
| Typical capacity | 50±0.5Ah | At 0.5C discharge rate |
| Max continuous discharge current | 50A | |
| Dischage cut-off voltage | About 40V | |
| Charge input voltage | 58.4±0.5Ah | Charge mode: CC/CV，Use a constant current, constant voltage(CC/CV) |
| Charge current | ≤2A | |
| Operation temperature | charge/discharge | 0℃～+45℃/-20℃～+60℃ |
| Range | Discharge | when the environment temperature is higher than 45C, please pay attention to ventilation and heat rejection. |
| Storage temperature rance | 0℃～40℃ （Capacity 80% ） | |
| Humidity | 5%≤RH≤85% | |
| Cabinet Material | Iron | |
| Total weight | 23±0.5kg | |
| Size(L*W*H) | L(435±2mm)*W(418±2mm)*H(133±2mm) | |
| Protection function | Over charge protection、Over discharge protection、Over current protection、Short circuit protection，Temperature Protection | |
| Commnication port | CANBUS/RS232 / RS485 | |
Standard Test Conditions
All test in this specification should be in standard atmospheric conditions: temperature: 25± 5℃, relative humidity: 65±20%.
Standard charge
Charge the battery with the Battery special test cabinet, supply54V voltage, constant-current 0.2C(A) current until current down to 0.02C（A）.
Standard discharge
Discharge the battery at 0.2C（A） to 37.5V or battery cut off voltage.
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Test Items |
Test Methods |
Test Standards |
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Capacity retention rate |
After standard charge under 5.1 specified conditions, store the cells for 28 days, then discharge at 0.2C（A ）to cut-off voltage. |
Capacity retention rate≥80% |
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Cycle Life |
1) Standard charge at 0.2C（A）, 2) Rest 0.5~1 h 3) Discharge at 0.2C to cut off voltage 4) Capacity retention rate≥80% |
>4000cycles @ 100% DOD; >6000cycles @80% DOD; >10000cycles @ 80% DOD; |
