EJ-4850FECA 48v 50ah Back up LifePO4 battery

//EJ-4850FECA 48v 50ah Back up LifePO4 battery
EJ-4850FECA 48v 50ah Back up LifePO4 battery 2019-10-23T07:33:51+00:00

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

discharge voltage characteristics at various rates

discharge voltage characteristic at various temperatures discharge 1 C charge voltage characteristic at various temperatures charge 0.2c charge voltage and state of charge SOC charge 0.2c @ 25 °C cycle life vs depth of discharge DOD discharge 0.5C charge 0.5c @ 25°C capacity of lifepo4 vs lead acid at various rates of discharge