​Specifications
 
2 kW highly efficient natural convection-cooled industrial battery charger for 48 V lead-acid and Li-ion batteries.
 
Below is a summary of the key features:

• Different battery types (chemistries) can be charged.
• Different battery charging capacities can be selected
• Clear signalization of the operation status of the charger during normal operation
• and when an error is present
• Accurate charging profile according to the chemistry type selected as well as the measured temperature of the battery during the charging process, as described in the “Lead-acid and Li-ion charging profiles” section.
• In case larger batteries need to be charged or faster charge capability is needed, the battery charger can be connected in parallel with another unit to achieve this.
• High Power Factor (PF) and low Total Harmonic Distortion (THD) response at high-line
• Efficiency higher than 92 percent from 20 percent of the rated load (2 kW) upward when Vin = 230 V AC, and efficiency higher than 91 percent of the rated load (1 kW) upward when Vin = 90 V AC, during CCM.
• High performance achieved by using best-in-class devices
• Robust and realiable operation under different abnormal conditions:
• Power Line Disturbance (PLD) events, like AC-Line Drop-Out (ACLDO) and voltage sag
• Surge events that do not represent a serious threat to the integrity of the industrial battery charger according to what it is specified in the Surge immunity (EN61000-4-5)Surge immunity (EN61000-4-5)
• supports higher voltage
• Multiple charging profiles
• Wide input voltage range

 
The battery management control system implemented is designed to optimally charge lead-acid (WET, GEL, AGM, EFB and VRLA) as well as Li-ion (LiPo, Li2MnO3, Li2Mn2O4, Li4Ti5O12 and LiFePO4) batteries used on electric vehicles including E-scooters, E-bikes and low-speed vehicles.
RS485 communication
 
Featured applications

• E-bikes – pedelecs battery charger
• E-rickshaws – E-scooters battery charger
• Forklifts – E-carts battery charger
• Micro E-cars – logistics EV battery charger

 
Input requirements

Parameter
 Value

Input voltage range, Vin_range
90 V AC to 265 V AC

Nominal input voltage, Vin
200 V AC to 265 V AC

AC-line frequency range, f
AC 47 Hz to 63 Hz

Turn-on input voltage, Vin_on
80 V AC to 87 V AC, ramping up at low-line with

limited power
 

Turn-off input voltage, Vin_off
75 V AC to 85 V AC, ramping down at low-line with

limited power
 

Power Factor (PF)
Greater than 0.9 from 10 percent rated load

Hold-up time
10 ms after last AC zero point at Pout_max

 
20 ms after last AC zero point at 0.5 × Pout_max

Total Harmonic Distortion (THD)
Less than 15 percent from 10 percent of the load at

 
high-line, for Class A equipment

Output requirements

Parameter
Value

Nominal output voltage, Vout
40 V DC to 60 V DC

Maximum output power, Pout
2 kW at Vin = 178 V AC to 265 V AC at Iin_max = 12 A AC

 
1 kW at Vin = 90 V AC to 138 V AC

Peak output power, Pout_max
2 kW

Maximum output current, Iout_max
50 A

Output voltage ripple Max.
20 Vpk-pk at Vout and Iout

Maximum output over-voltage threshold
60.9 V DC

Minimum output over-voltage threshold
60.2 V DC

 
 

 
Diagnostics

• Over-voltage error (62.8 V/59.8 V) – (lead-acid/Li-ion)
• Under-voltage error (28.8 V/35.0 V) – (lead-acid/Li-ion)
• Voltage gain error (voltage rise error) – (4.5 V/s)
• Over-current error (52.5 A)
• Under-current error (difference between current reference and measured current
• greater than 5.0 A)
• Fully on Over-temperature charger (+115°C)
• Under-temperature charger (-20°C)
• Over-temperature battery (+65°C/+60°C) – (lead-acid/Li-ion)
• Under-temperature battery (-20°C)
• Time-out pre-charging (2 h/1.5 h) – (lead-acid/Li-ion)
• Time-out main charging current stage (10 h/8 h)
• Time-out main charging voltage stage (12 h/10 h)
• Exceedance of charging capacity (1.2 × Cnom)
• Error auxiliary supply (9.5 V less than Uaux less than 15.5 V)
• Unspecified error

 
Charging profiles
The battery charger software is implemented with multiple charging profiles –lead-acid batteries. Furthermore it is possible to set the nominal battery capacity (Cnom) in order to adjust the charging currents to the battery size. The respective charging profile corresponds to the latest trends in battery charging
 

 

 

 
 
 
Common Features

• Operating power supply 230VAC/ 50 Hz,
• Rugged Built in Industrial grade power supplies
• LCD Display and Keyboard