Before testingWe need to prepare solar power generation simulation system and electrical parameter testerFor more accurate observation data

How to choose your right controller for your solar system-1How to choose PWM and MPPT controllerWhen choosing and using solar controllersDo you have any doubts as follows1.When choosing a solar controller, I don't know how to choose the right controller to match your solar panel.2.I don't know how to choose the suitable system voltage.3.When choosing MPPT controller, I do not know how the solar panels are connected in series or in parallel to ensure the maximum input voltage range allowed by the controller

As mentioned beforeIf PWM solar controller is selectedThe voltage of solar panel should match the voltage of controller and batterySo let's explain the knowledge of series and parallel connection 

How to choose the right solar controller according to the power of the solar panelThe principle of selecting PWM controller is not to exceed the rated power of the controller. Secondly, the voltage of solar panel, PWM controller and battery must match.

In this video, we introduce the meaning of the TD75V series solar panel charging status indicator in different flashing modes

 SD2420S-DNDuo Battery Solar Controller1.20A 2.12V/24V3.Common Negative4.Start from solar

*With the advanced dual-peak or multi-peak tracking technology, when the solar panel is shadowed or part of the panel fails resulting in multiple peaks on the I-V curve, the controller is still able to accurately track the maximum power point.*Advanced MPPT technology, with efficiency no less than 99.5%*Maximum DC/DC conversion efficiency of 98%*Ultra-fast tracking speed and guaranteed tracking efficiency*Advanced MPPT control algorithm to minimize the MPP loss rate and loss time*Limit charging power & current over rated range.When the solar panel power exceeds a certain level and the charging current is larger than the rated current, the controller will automatically lower the charging power and bring the charging current to the rated level.*Support the lead-acid,gel,flooded with the needed Temp. compensation and support lithium batteries start from solar panel*Power reduction automatically over temperature range*Monitor and set the parameters via App(optional)

Tracer Dream 50V Series:1.MPPT tracking efficiency above 99.5%2.Maximum charge conversion efficiency as high as 98%3.MC4+Large Terminals4.Built-in Bluetooth/WiFi(optional)5.14 Safety Protections

If you connect to WiFi unsuccessfully, Please check as followsInstructions before downloading the appBefore using LDSOLAR products, please confirm that the selected product matches the iConnect app. For WIFI 2.0 version controllers, please download iConnect V2.0 or higher; For WIFI version controller, please download iConnect V1.7 or below; For Bluetooth version controller, All iConnect version can be downloaded and used.

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 With the advanced dual-peak or multi-peak tracking technology, when the solar panel is shadowed or part of the panel fails resulting in multiple peaks on the I-V curve, the controller is still able to accurately track the maximum power point.Advanced MPPT technology, with efficiency no less than 99.5% Maximum DC/DC conversion efficiency of 98% Ultra-fast tracking speed and guaranteed tracking efficiency Advanced MPPT control algorithm to minimize the MPP loss rate and loss time Wide MPP operating voltage range Limit charging power & current over rated range.When the solar panel power exceeds a certain level and the charging current is larger than the rated current, the controller will automatically lower the charging power and bring the charging current to the rated level. Support the lead-acid,gel,flooded with the needed Temp. compensation and support lithium batteries starting from solar panel Real-time working record function Load dry contact to control the external load swi...

1.32 bits CPU, sampling precision is higher, operation speed is faster 2.12V/24VDC 24V/48V Automatic Identification System Voltage 3.3 stages PWM charging: Bulk, Boost, Float 4.Sealed, Gel, Flooded and lithium battery selection procedure 5.Humanized LCD display, dynamic display operation data and working state.6.Built-in operation log, account system working state 7.Multi load control mode: Normal mode, Sensor mode, Timer mode 8.Temperature Compensation Function and Controller Over Temperature Protection Function 9.Fullest digital protection functions: Overcharging, Over-discharging, Overload, Short Circuit, Reverse Connection, Controller Over-Temperature and so on. 10.Max 16mm² connectors, colorful connector distinguish plus and minus poles. 11.5V 1A USB output