Pv Charge Controller

Pv Charge Controller

Product name:PWM solar charge controller 50A
Model No.:NC48- 50D
Working principle:PWM Solar Charge Controller is a photovoltaic (PV) charge controller that tracks the PV array to deliver the available current for charging batteries. When charging, the Controller regulates battery voltage and output current based on the amount of energy available from the PV array and state-of-charge of the battery.



50a pv charge controller information 

China LCD Display solar power system 48V50A pwm pv charge controller

This is a kind of intelligent, multi-purpose solar charge and discharge controller. Fixed LCD display with a very friendly interface is used in this product; various control parameters can be flexibly set, fully meet your various application requirements.

Technical Data for NC 50a pv charge controller





PV input voltage


Rated charge current



System voltage

12V/24V Auto or 48V



Rated current


No-load loss


Charge loop voltage drop


Discharge loop voltage drop

≤ 0.12V

Charging mode

PWM 4-stage(bulk, absorption,float, equalized)

Voltage of float charging


Voltage of absorption charging

14.4V(13V~15V) ×1/×2/×3/×4

Duration of absorption charging



10.8V(10V~14V) ×1/×2/×4


12.6V(10V~14V) ×1/×2/×4

Load working mode

Regular control mode

Light control with switch-off point at night and switch-on point before dawn

Light control mode

Light control voltage

5V(1V~10V) ×1/×2/×4

Battery type

GEL, SLD, FLD and USr(default)



LCD, 3 buttons

Heat sink

AL alloy heat sink


PCB terminal, ≤25mm2

Working temperature

-20 ~ +55 °C

Storage temperature

-30 ~ +65 °C

Working humidity

10% ~ 90%, no condensation


188 x 133 x 51.5 mm

Net Weight


IP grade


Optional function

Remote communication,TTL, standard ModBus protocol


Temperature sensor

Connection diagram

Packaging for pwm solar charge controller

About 50 amp pv charge controller

• Vivid LCD graphic symbols

• Simple button operation

• Automatic identification of system voltage level

• Intelligent PWM charging mode 

• Adjustablecharge-discharge protection

• Automatic temperature compensation

• Settable operation mode of load

• Battery reverse-discharge protection

• Battery low voltage disconnection(LVD)

• Battery reverse connection protection

• Overcurrent protection

Application for pv charge controller

Our Advantage

Our factory

Our market



Q:What is a Solar Charge Controller? Why do I need one?

A charge controller, or charge regulator is basically a voltage and/or current regulator to keep batteries from overcharging. It regulates the voltage and current coming from the solar panels going to the battery. Most "12 volt" panels put out about 16 to 20 volts, so if there is no regulation the batteries will be damaged from overcharging. Most batteries need around 14 to 14.5 volts to get fully charged.

Q:Do I always need a charge controller?

Not always, but usually. Generally, there is no need for a charge controller with the small maintenance, or trickle charge panels, such as the 1 to 5 watt panels. A rough rule is that if the panel puts out about 2 watts or less for each 50 battery amp-hours, then you don't need one.

Q: What's A PWM solar charge controller ?

A PWM solar charge controller stands for “Pulse Width Modulation”. These operate by making a connection directly from the solar array to the battery bank. During bulk charging, when there is a continuous connection from the array to the battery bank, the array output voltage is ‘pulled down’ to the battery voltage. As the battery charges, the voltage of the battery rises, so the voltage output of the solar panel rises as well, using more of the solar power as it charges. As a result, you need to make sure you match the nominal voltage of the solar array with the voltage of the battery bank. *Note that when we refer to a 12V solar panel, that means a panel that is designed to work with a 12V battery. The actual voltage of a 12V solar panel, when connected to a load, is close to 18 Vmp (Volts at maximum power). This is because a higher voltage source is required to charge a battery. If the battery and solar panel both started at the same voltage, the battery would not charge.

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