on video How To Charge Your Mobile Phone With 12V Battery

 How To Charge Your Mobile Phone With 12V Battery

Charging your smartphone while camping outside is not always easy. I am showing you how to charge your phone by using a car battery and a moped battery. You can also use the gadget with any kind of 6V-24V power source.

The video already talks about the most important facts. But I will also give you some more information about the project in the next steps.

 It's time to choose your circuit!

You may have noticed that I built 2 cicuits inside this gadget, which basically have the same function. But they have their own pros and cons:

LM7805:

+ very simple, perfect for beginners

+ very cheap

+useful when you only need a little current

- efficiency is horrible with higher voltages (24V --> 21%--> becomes a heater)

(12V --> 42%--> not nice)

LM2576:

- more complex circuit

-More parts, more costs

+ efficiency is quite good for a DIY phone charger (around 80%)

You can decide which one you want to use or maybe you build both. It is up to you.

Hello friends, today in this video I have shown how to make a simple mobile phone charger with using any power transistor and a 5.1V zener. Then you can supply this circuit from any 9V-12V battery or even any 12V car battery. If you are planning to input above 12v then put a bigger heatsink for the transistor.

Components required for this project:

Tip41 transistor (any power transistor)

470 ohm resistor

47uf capacitor

5.1V zener

Heatsink

USB female port connector

9V to 12V battery

 How To Charge Your Mobile Phone With 12V Battery

Charging your smartphone while camping outside is not always easy. I am showing you how to charge your phone by using a car battery and a moped battery. You can also use the gadget with any kind of 6V-24V power source.

The video already talks about the most important facts. But I will also give you some more information about the project in the next steps.

 It's time to choose your circuit!

You may have noticed that I built 2 cicuits inside this gadget, which basically have the same function. But they have their own pros and cons:

LM7805:

+ very simple, perfect for beginners

+ very cheap

+useful when you only need a little current

- efficiency is horrible with higher voltages (24V --> 21%--> becomes a heater)

(12V --> 42%--> not nice)

LM2576:

- more complex circuit

-More parts, more costs

+ efficiency is quite good for a DIY phone charger (around 80%)

You can decide which one you want to use or maybe you build both. It is up to you.

Hello friends, today in this video I have shown how to make a simple mobile phone charger with using any power transistor and a 5.1V zener. Then you can supply this circuit from any 9V-12V battery or even any 12V car battery. If you are planning to input above 12v then put a bigger heatsink for the transistor.

Components required for this project:

Tip41 transistor (any power transistor)

470 ohm resistor

47uf capacitor

5.1V zener

Heatsink

USB female port connector

9V to 12V battery