Today we try a circuit from the internet for charging batteries, a BMS or battery management system. I’ll show you a schematic for only one cell and scale it up for any amount of batteries if you want a 2S battery pack, 3S, and so on. The function of this circuit is to charge the batteri... view more

• circuit
• homemade
• charger
• lipo
• BMS

In this tutorial I'll show you the circuit of a basic wireless charger, the transmitter and receiver. See how to adapt the resonance and transfer power. Then how to regulate the receiver output at 5V so we could charge a smartphone via USB. Hope you'll learn something new.

• wireless
• homemade
• DIY
• charger
• circuit

First of all, this is jst a first prototype. It works but I can't know all the results for sure and if it is reliable or not. Stay tuned for future versions with improvements, more tests and better code. In this tutorial I will explain you the parts of an MPPT controller, the charging proc... view more

• mppt
• controller
• DIY
• homemade
• Arduino
• charger
• solar

Usually, each time I have a project with a small battery that I also want to charge, I use a small charging module with USB connector. But then, all the other digital components usually work at 5V, but the battery is 3.7V. So, for that I add another small module, a boost converter to give me 5V. ... view more

• charger
• BMS
• battery
• PCB
• DIY
• converter
• boost

We all know that our smartphone's battery is always out of juice when we really needed it, for example to make an imp... view more

• DIY
• emergency
• powerbank
• charger
• portable
• EDC
• lipo
• circuit