EJ-4840FEB 48v 40ah Back up LifePO4 battery with a LCD display screen

//EJ-4840FEB 48v 40ah Back up LifePO4 battery with a LCD display screen
EJ-4840FEB 48v 40ah Back up LifePO4 battery with a LCD display screen 2019-10-23T07:11:57+00:00

Project Description

48V battery pack – Lithium-Iron-Phosphate (LiFePO4) – 40Ah with a LCD display screen
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-4840FEA EJ-4840FEB
Rated Capacity (5HR) 40 AH 40 AH
Nominal Voltage 51.2 V 51.2 V
Discharge Ending Voltage 43.2 V 43.2 V
Charging Limited Voltage 57.6 V 57.6 V
Max. Charging Current 25.0 A 25.0 A
Max. Continue Discharging Current 25.0 A 25.0 A
Weight Approx. 25 Kg Approx. 25 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) 436 (17.17″) * 400 (15.75″) * 132.5 (5.22″)
Containing Cell
Design Life More than 10 years
Cycle Life More than 3000 cycles at 80% 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-4840FEA End of discharge voltage 43.2 V / 19 A 13.3 A 10A 8 A 4 A
EJ-4840FEB End of discharge voltage 43.2 V / 19 A 13.3 A 10A 8 A 4 A
Constant Power Discharge Table (Watts) at 25℃
Model Voltage Time 1 h 2 h 3 h 4 h 5 h 10 h
EJ-4840FEA End of discharge voltage 43.2 V / 965 W 645W 485W 390 W 196 W
EJ-4840FEB End of discharge voltage 43.2 V / 965 W 645 W 485W 390 W 196 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