Project Description
48V battery pack – Lithium-Iron-Phosphate (LiFePO4) – 50Ah
• High lifespan: two thousand cycles and more (see chart)
• Deep discharge allowed up to 100 %
• Ultra safe Lithium Iron Phosphate chemistry (no thermal run-away,
no fire or explosion risks)
• Embedded BMS (Battery Management System): improve lifespan
AND secure the battery
• No Lead, no heavy metal, no toxic element
• Calendar life > 10 years
• Excellent temperature robustness (-20 °C up to +60 °C)
• Constant power during discharge (very low internal resistance)
• Very low Peukert’s losses (energy efficiency >96 %)
• Very low self-discharge (<3 % per month)
• No memory effect
• About 50 % lighter and 40% smaller than equivalent Lead-AGM
battery with same usable energy
| Characteristic | ||
| Item | Specification | |
| Model | EJ-4850FECA | EJ-4850FECB |
| Rated Capacity (5HR) | 50 AH | 50 AH |
| Nominal Voltage | 48 V | 48V |
| Discharge Ending Voltage | 40.5 V | 40.5 V |
| Charging Limited Voltage | 54 V | 54 V |
| Max. Charging Current | 50.0 A | 50.0 A |
| Max. Continue Discharging Current | 50.0 A | 50.0 A |
| Weight | Approx. 32Kg | Approx. 32 Kg |
| Display | Without a display screen | With a LCD display screen |
| Parallel Connection | Parallel connection is optional (up to 16P). When paralleling, the max. charging current is 10A | |
| Dimensions (W*D*H) mm (inches) | 443 (17.44″) * 441.5 (13.78″) * 132 (5.20″) | |
| Containing Cell | ||
| Design Life | More than 10 years | |
| Cycle Life | More than 3500 cycles at 100% DOD | |
| IP Class | IP30 | |
| Outer Package Material | White bake lacquer steel case (battery rack or cabinet is optional) | |
| Operating Temperature | Charging: 0 to +45℃ Discharging: -20 to +60℃ Storage: -20 to +60℃ | |
| Discharge Table | |||||||
| Constant Current Discharge Table (Amperes) at 25℃ | |||||||
| Model | Voltage Time | 1 h | 2 h | 3 h | 4 h | 5 h | 10 h |
| EJ-4850FECA | End of discharge voltage 43.2 V | 47.5A | 24 A | 16.6 A | 12.5A | 10 A | 5 A |
| EJ-4850FECB | End of discharge voltage 43.2 V | 47.5A | 24 A | 16.6 A | 12.5A | 10 A | 5 A |
| Constant Power Discharge Table (Watts) at 25℃ | |||||||
| Model | Voltage Time | 1 h | 2 h | 3 h | 4 h | 5 h | 10 h |
| EJ-4850FECA | End of discharge voltage 43.2 V | 2400W | 1205W | 805 W | 605W | 484W | 243 W |
| EJ-4850FECB | End of discharge voltage 43.2 V | 2400W | 1205 W | 805W | 605W | 484 W | 243 W |
