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1.8KW LiFePO4 Charger

1.8KW LiFePO4 Charger
Here is the Charger designed for LiFePO4 Battery Pack.
the power of the charger is 1.8kw
There are different modules of the charger
48V25A LiFePO4 Charger
72V25A LiFePO4 Charger
96V16A LiFePO4 Charger
Weight of the Charger is only 1.8kg. its one of best Charger for your LiFePO4 Battery Pack
1.8KW LiFePO4 Charger
1.8KW LiFePO4 Charger

1. Overview

HK-H series 1.8KW charger was specially designed for supplying the electricity for electric vehicle’s power battery, on the basis of the national standards for the charger. This product has the advantages of not only only high efficiency, small size, high stability, long lifespan, but also high protection grade, and high reliability and complete protection function, etc. It’s definitely an ideal charging power supply for f electric vehicles.

This charger has built-in heat-sensing device and can automatic recover through the thermal protection. Fully sealed potting process and up to IP67 protection level ensures no causing trouble in any complex environment.

1.Key Feature:

Fully sealed potting process,

Work reliably under -35- +85

water cooling ( modular optional)

Built in thermal sensor

Cut off output under dangerous operations conditions

(internal 95)

Protection level IP67

Work

safely in the short-term immersion conditions

2. Essential Parameter

Input

Output

Max Output

Full-load

Hardware

Voltage

Power Factor

Current

Current

Efficiency

Range

48V25A

9A

18-68VDC

25A

≥0.99

≥93%

(half-load more)

72V25A

9A

25-99VDC

25A

≥0.99

≥93%

(half-load more)

96V16A

9A

34-132VDC

16A

≥0.99

≥93%

(half-load more)

3. Features

Input

Frequency

45-65Hz

Stand-by Consumption

≤5W

Output Mode

CV / CC

Output Power

1800W@220VAC 700W@110VAC

Main Output

CV Accuracy

±1%

CC Accuracy

±2%

Ripple Voltage Coefficient

5%

Communication

CAN Communication

Yes

Baud Rate

125Kbps250Kbps500Kbps

Function

Terminal Resistance

N/A

12V Output

Load Capacity of 200 mA, Output controllable

12V5A (Optional Output Function)

Output Mode

Constant Voltage

Output Voltage

13.8V

Rated Current

5A

Low Voltage

CV Accuracy

±2%

Output

Maximum Current

5.5A±0.5A

Output Power

≥62.5W

Ripple Voltage Coefficient

1%

4.Protection function

Input Over-voltage Protection

AC270±5V

Input Under-voltage Protection

AC85±5V

Output Over-voltage Protection

Stop the output when exceeds + 1% of the maximum output voltage

Output Under-voltage Protection

Stop the output when below -5% of the minimum output voltage

Output Over-current Protection

Stop the output when exceeds + 1% of the maximum output current

Over-temperature Protection

Power down from 85 and turn off at 90

Short-circuit Protection

Stop Output

Battery Reverse Connect Protection

Fuse Burn-out

Ground Protection

100mΩ

CAN communication Protection

Automatically stop the output when CAN communication fails

Power-off Protection

Yes



5. Safety and others

Input to Output2000VAC10mA

Withstand Voltage

Input to Ground2000VAC12mA

Output to Ground2000VAC10mAall 1min

Insulation Resistance

Input, output, signal terminal to casing10MΩ

Testing Voltage 1000VDC

Electromagnetic

GB/T 18487.3-2001

11.3.1

Immunity

Electromagnetic

GB/T 18487.3-2001

11.3.2

Abusive

Harmonic Current

GB   17625.1-2003

6.7.1.1

Inrush Starting Current

24A

Current-rise Time

5SOvershoot5%

Close Response time

100% 10%50mS100% 0%200mS

Protection Level

IP67

Vibration Resistance

1025Hz Amplitude1.2mm25500Hz 30m/s28hrs per direction

Noise

60dB(A Level)

MTBF

150000H

Work Environment

Relative Temp 5%-95% No condensation

Working Temperature

-35 ~ +85

Storage Temperature

-55 ~ +100

6. Installation size, label requirements and interface definitions

1). Installation size,Label

 


         Label ( based on the actual situation)



2). Interface Definitions



7. LED status

1). Initial State

Red Off Green Off Red Off Green Off Red Off Green Off Red Off Green Off

2). Charging State

Red Off Red Off Red Off Red Off Red Off Red Off Red Off Red Off

3). Stand-by State

Green Off Green Off Green Off Green Off Green Off Green Off Green Off Green Off

4). Fault State

Red Green Red Green……………Other error status word error

Red Green…………………………Wrong Battery

Red Green Red……………………Wrong Communication

Green Red…………………………Wrong Input Voltage

Green Red Green…………………Internal Temperature Protection

Green Red Green Red……………Wrong Hardware

8. Charging Curve

1). CC/CV Charging mode(for Lithium Battery)





U1= U23 U2= n ×2.5VU3=Maximum voltage for the battery pack I1= I22 I2=Maximum charging current for the battery packI3= I62

Pre-chargeIt only enters into pre-charging process when the battery pack voltage is under U2 ( The charger does not start when battery pack is under U1), then it operates in a constant current charging I1, finally, the pre-charging process is completed when voltage rises to U2.

CC ChargingIt operates in a constant current charging I2, then the CC charging ends when voltage reaches to U3.

CV ChargingConstant voltage charging with U3, the whole charging process is completed when current reduces to U3

2). Different brand-name of lead-acid batteries have different kinds of charging curves.

Below shows a typical charging curve for Chilwee battery:

9. Expansion Function



Choose the accessories according to the actual needs: 1). Thermal Sensor Interface (for lead-acid battery charger)

Thermal Sensor is recommended to lead-acid battery charger, to detect the temperature of the battery and compensate charging voltage, at the same time to realize the battery overheat protection function. Suggest that the thermal sensor is fixed on the cell of the highest temperature. When the thermal sensor is not easy to install on the battery, you can fix the temperature sensor directly to the position that can detect the environmental temperature. Note that it shall not be affected by heat coming from the charger.

2). 12V Output

Charger provides a rating voltage 12V0.2A signal output. Its electrical connections is isolated from the interior circuit of the charger for external application function extension. Note that this 12V with LED indicator output interface are common-grounded. The independent 12V output can supply power for the battery management system. Output 12V-5A.

3). LED Output Interface

Charger provides Red, Green two LED interface or Red, Yellow, Green three LED interface. Its electrical connections is isolated from the interior circuit of the battery charger for external application function extension.

4). ENABLE Signal (for Lithium battery charger): External control circuit must be independent circuit


As for lithium battery charger, it’s essential to use an enable signal to control the charger’s work or close. Isolated circuit (such as Relay or Optocoupler) shall be adopted to control the charger’s work or close. Note that if the control circuit is not independent, it lead to damage of the charger.

5). Charging Lock up Signal(for lead acid battery)


Charger provides a set of relay normally closed contact as charging locking signal output. When the charger has no electricity, the contact connects, while the charger connects to the AC power supply, the contact disconnects immediately. The rated current of contact is 1A, withstand voltage 30VDC / 250VAC.

10. Appearance Requirements

 

1). Outer surface should be smooth without obvious defects such as scratch, deformation. Surface coating should be uniform.

2). The nameplates and signs should be installed firmly with the neat handwriting.

 

3). Spare parts should be fastened reliably without rust, burrs, cracks and other defects and damage


 

4). Each product should be marked with product identification in obvious place, including part number, product brand, product type, production number, name of production enterprises, the warning message, etc

11. Packaging, Transport and Storage

1). Packaging

On the packing box, there are product name, product part number, product brand, product type, production number and name of manufacturer; In packing box, along with the technical documents, it includes packing list, quality certificate, product specification.

2). Transportation

Suitable for cars, boats, aircraft, transportation. The products have to be prevented against sunshine and moisture and in a civilized transportation.

3). Storage

Product should be stored in the packing box when it is not used and be maintained in a 5 to 40 clean, dry and well-ventilated environment. It should not be stored together with chemicals, acid and alkali substances etc,. Should avoid storing in the sun, fire, water and avoid storing with corrosive substances. The storage period is 2 years (from the inventory date of the factory). After the 2 years of storage period, the products should still comply with the provisions of the relevant standards.


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