Solar charge controller   is the most important part of the solar system. It is too intelligent and automatically to control the charge, discharge and load of the system. The performance of the controller can influence the stability of the system, especially the lifetime of Battery.  

Intelligent 30A 12V/24V Auto Battery Regulator Solar Charge Controllers (QWP-VS3024U)

1. Description:
This solar controller applies in solar photovoltaic systems, which coordinates the working of solar panels, batteries and loads. It adds some protection functions, so that the entire system can be in efficient and safe operation. The extremely low consumption makes this controller suitable for profes-sional applications in telecommunications and traffic management technology.
 

2. Product description:

Rated Voltage(Va):12/24V auto
Rated Load Current(A):30A
USB output:3A
Over Charge Current(V):13.7V/*2 24V
Over Discharge Current(V):10.5-11V/*2 24V
Temperature Compensation:-3mv/oC/cell
Empty Load Wastage:<45mA
Loop Voltage Drop:<200mv
LCD display

3. Features:
Home, street universal controller
1, the image of the LCD graphic symbol
2, simple button operation
3, the system voltage level Automatic Identification
4, Intelligent PWM charging mode
5, automatic temperature compensation
6, adjustable discharge control parameters
7, the operating mode can be set to load
8, when the cumulative number of charge and discharge safety functions
9, the remote monitoring function (to be ordered)
10, Battery reverse-discharge protection
11, battery undervoltage protection
12, reverse battery protection
13, overload, short-circuit protection

4. Technical Parameter:

Type	QWP-VS3024U
Rated charging current	30A
Rated load current	30A
Work voltage	12V 24V auto
Over load, short circuit protection	Over load protection action: 1.25times rated load current in 60-sec, 1.5 times rated load current in 5-sec; Short circuit protection action: >=3times rated load current.
No load current	<=6mA
Charging circuit voltage drop	<=0.26V
Load circuit voltage drop	<=0.15V
Over voltage protection	17V, x2/24V
Work temperature	Industry stage:
Boost charge voltage	14.6V; x2/24V(keep 10-min) (Only applied when overdischarge appears)
Direct charge voltage	14.4V; x2/24V(keep 10-min)
Float charge voltage	13.6V; x2/24V(keep working until drop to the point of charge return voltage action)
Charge return voltage	13.2V; x2/24V
Temperature compensation	-5mv//2V(Boost charge, Direct charge, Float charge, charge return voltage)
Lower voltage indicate	12.0V; x2/24V
Over discharge voltage	11.1V no load-real-time modified voltage by the discharge rate; X2/24V
Over discharge return voltage	12.6V; 12/24V
Control mode	PWM mode

5. What is PWM  controller charge solar 
PWM stands for Pulse Width Modulation. PWM is often used as one method of float charging. Instead of a steady output from the controller, it sends out a series of short charging pulses to the battery - a very rapid "on off" switch.   charger controller application 
The controller constantly checks the state of the battery to determine how fast to send pulses, and how long (wide) the pulses will be. In a fully charged battery with no load, it may just "tick" every few seconds and send a short pulse to the battery. In a discharged battery, the pulses would be very long and almost continuous, or the controller may go into "full on" mode. The controller checks the state of charge on the battery between ulses and adjusts itself each time.

6. The feature for QWP-VS3024U  controller charge solar 
Thisseries solar charge controller is a kind of intelligent,multipurpose solar charge/discharge controller,the customized LCD display is used in this product,the interface is easy to operate,the parameters can be set neatly to satisfied your varied requirement.

7. FAQ
1. Q: Are you a factory or trading company?
A: We are a factory.

2. Q: What certificate do you have?
A: We have CE,ROHS certificate.

3.Q:What kind of payment do you accept?
A:We accept T/T,Escrow,Western Union for samples' order,only T/T for big orders.

4.Q:Do you have any MOQ?
A:we don't have MOQ for mid-brand packing,if need your design it has 300pcs to 1000pcs.

5. Q: How does your factory do regarding quality control?
A: We have a special QC department in charge of products' quality.

6. Q: How long is the warranty period?
A: All of our products have one year warranty.

7. Q: What's the main market of your company?
A: We have customers all over the world.

8. Q: How long will the products'delivery?
A: for samples'order will 3-10days,big orders are from 30-45days.

8. About us:
Guangzhou Queenswing Solar Energy Co. Ltd. Is a professional manufacturer and exporter of solar products including power inverter, solar charge controller, solar panel and solar battery in China. To provide high-quality product and considerate service is always our basic policy. We believe high quality creates business and progress is from improvement.

Main products:
Pure sine wave power inverter
Modified sine wave power inverter
UPS power inverter with charger
Car power inverter
Solar charge controller
Solar panel
Solar battery

Our power inverter and solar products are exported to most global coutries and get good reputation because of our favorable quality and stable performance.

9. Payment Terms:
T/T, Western Union, Money Gram
Production arranged after receipt of payment.

Lead Time:
Sample order will be delivered within 7 working days.
Order quantity below 100PCS, delivery time is 7-15 working days.
Container order will be delivered within 15-30 working days.

Shipment:
Courier: FedEx, DHL, TNT, UPS, Aramex, EMS ect.
Forwarder: By sea / air or Customer designated