4 Responses

1. Use a 12 volt panel and just put in a resistor or maybe something in series with your remote that uses the power and gives you an 8V voltage drop before entering your remote

2. I never saw a remote control that needed a 4 volt source, as 4 volts is not a voltage you can obtain with 1.5 volt batteries. 3 volts or 4.5 volts would be more common.

   A video you saw online cannot tell you what the power requirements are for YOUR remote control, they are all different.

   But you can use a zener diode to set the voltage to that desired, or perhaps a 3 terminal regulator.

   Solar panels produce a voltage that covers a wide range of voltage, depending on the intensity of the light and on the angle the panel makes with the light/sun. A 12 volt panel may produce 20 volts in bright sunlight, and only 2 volts or less in the shade or indoors.

   .

3. Sounds like a fun project.

   Maybe try this http://www.goldmine-elec.com/SolarItems.html
   G16075 $3.49 ea.

   When doing a low-current charger as I suspect you are, there is no need to have an exact voltage of solar panel, as long as the voltage is high enough. A 12V panel at 20 mA will drop to 2.8V at 20 mA when you connect it across two NiCd batteries.

   The design must have batteries or capacitors in it, as a remote control will draw in excess of 1A of current for brief peak pulses.

4. yes my dear friend…….u will find here…………You can use this system to power up basically any appliance you have in your home: fridge, washing machine, computer, TVs, lights.

   Moreover, you can even take this with yourself when you go camping, because it’s highly portable.