12V 20A Lithium Battery Charger (LiFePO4)

Input Characteristics

Input Voltage: 120 VAC

Nominal Voltage: 120 VAC

Variation Range： 110-132VAC

Input Frequency: 50/60 Hz

Nominal Frequency: 50/60 Hz

Variation Frequency：47/63 Hz

Input Current: 10 A max At any input voltage and rated. DC output rated load.

Inrush Current: 40 A Max. Cold start at 120 VAC input, with rated load and 25℃ ambient.

Ac Leakage Current:  3 mA Max. at 120 VAC input

Output Characteristics

Power Output:

    Voltage          Min. Voltage        constant.current         Output Power

+14.4 VDC±1 %         +7.2 V ±5%         20 A±5%              288 W±3%

Combined Load/Line Regulation：

Voltage   Min. Voltage    Max. Voltage     Line Regulation   

+14.4 VDC     14.3 V          14.5 V            ±1%

Ripple And Noise:

The ripple and noise are as follows when measure with Max.Bandwidth of 20 MHz and Parallel 47 uF / 0.1 uF,crossed connected at testing point.

      Voltage         Ripple And Noise(Max.)

+14.4 VDC           300 mVp-p

Turn On Delay Time: 2 second Max. at 230 VAC input and output Max. Load.

Rise Time: 20 mS Max. at 120 VAC input and output Max. Load.

Hold Up Time: 10 mS Min. at 120 VAC input and output Max. Load.

Indicator Light ：

Unload:  Green Light

Charging：Red Light

Full of Battery：Green Light

Protection Requirement

Short Circuit Protection:The power supply will be auto recovered when short circuit faults remove.

Over current Protection: The power supply will be auto recovered when over current 90% to 120% faults remove.

Over Voltage Protection: The power supply will be auto recovered when over nominal voltage 150% to 200%  faults remove.

over-temperature Protection : When the temperature exceeds 85℃+/-3℃, the output current of the power supply will auto reduce by half (the output power will reduce by half), and the power supply will return to normal after the temperature is normal.

Reverse polarity Protection : When the positive and negative polarity of the load (battery) joint is reversed, the power supply will be protected without voltage output, and it will automatically return to normal after troubleshooting.

Environmental requirement

Operating Temperature:  0℃-40℃

Storage Temperature:- 25℃ to 85℃, Without package

Relative Humidity: 5% (0℃)~90℃(40℃)RH, 72 Hrs,Full load,Normal operating