1.Description:

It is a buck-boost module.It can output the input DC 4V-25V to DC 1.25V-25V.This module can only increase the voltage but not the power.If you use solar energy as a power source,please ensure that the input power is 1.1 times higher than the output power under any circumstances.

2.Feature:

1).It comes with output short-circuit protection.

2).Its conversion efficiency is high.

3).Its structure is stable and its use is more stable.

4).It has a long life and strong durability.

5).It is equipped with a constant current indicator,a charging indicator and a full indicator,and the working status can be seen at a glance.

6).It has a constant current regulating potentiometer and a current regulating potentiometer,which can be adjusted according to your needs.

3.Parameter:

1).Product Name:Buck-Boost Module

2).Input Voltage:DC 4V-35V

3).Output Voltage:DC 1.25V-25V

4).Output Current:2A(Max)

5).Conversion Efficiency:80%

6).Full Load Heating:45℃

7).Work Temperature:-40℃~85℃

8).Work Humidity:5%~95%RH

9).Size:50*38*10mm

4.Battery Charging Method:

1).Determine the float voltage and charging current you need to recharge the battery,and the input voltage of the module.

2).Adjust the constant voltage potentiometer to adjust the output voltage to about 3V.

3).Measure the output short-circuit current with the 10A current block of a multimeter,and adjust the constant current potentiometer to make the output current reach the predetermined charging current value.

4).Adjust the constant voltage potentiometer to make the output voltage reach the float voltage.

5).Connect the battery and try charging.

5.LED Constant Current Drive Method:

1).Determine the operating current and maximum operating voltage you need to drive the LED.

2).Adjust the constant voltage potentiometer to adjust the output voltage to about 3V.

3).Measure the output short-circuit current with the 10A current block of a multimeter,and adjust the constant current potentiometer to make the output current reach the predetermined LED working current.

4).Adjust the constant voltage potentiometer to make the output voltage reach the highest operating voltage of the LED.

5).Connect the LED and test the machine.

6.Product Description:

1).The fixed lamp current is 0.1 times the constant current value (used to identify whether the battery is full when charging).

2).Lithium battery charging (including iron battery),4V,6V,12V,14V,24V battery charging,Ni-Cd Ni-MH battery (battery pack) charging.

3).Power indicator:constant current red indicator light,red indicator light during charging,blue indicator light when charging is complete.

7.Package:

1).1pcs Buck-Boost Module