![]() ![]() You can see the voltage and percentage on the Blynk IoT cell phone App, on the Blynk Cloud dashboard, and also on the Oled display module. My ESP8266 and cell phone both are connected to the WiFi. ![]() Besides this JLCPCB also offers industrial 3D printing services starting at only 1 dollar. You will only need to pay 2 dollars for 1- 4 layers PCBs, and 0 dollars for your PCB assembly. ![]() And as usual, before I am going to explain the circuit diagram, Blynk cloud dashboard, and blynk IoT App setup first let’s watch this 3.7V Lipo & Lithium Ion battery monitoring system in action.įeel free to visit their website to not only find out what awesome PCB and Assembly services they offer, but also to easily upload your Gerber files and thus order affordable and high-quality PCBs quickly. Now, the next part is to monitor the voltage and charge percentage.įor this, I connected everything as per the circuit diagram. Now, using my cell phone charger I can charge my single-cell Lipo and lithium-ion batteries. And using these output wires I can power up my 3.3v controller boards, 3.3V sensors, and small coreless dc motors, etc. You can see I have soldered the Red and Black wires of the 3.7V Lipo battery with the B+ and B- contacts on the TP4056 battery charger module. I am using my Andonstar digital Microscope for recording the video clips and for capturing high-quality images, and I am going to use the ATEtool Soldering Station. So, let’s go ahead and start the soldering. So, I am going to use this Battery charger module. So, you simply connect your 3.7V battery and leave everything else to this module it will make sure your battery stays safe. The TP4056 board has this DW01 battery protection IC that is designed to take care of Overcharge, Over-discharge and Overcurrent for single cell Lithium Ion or Lipo battery-powered systems. TP4056 is best for charging single cell Lithium Ion and Lipo batteries. For this I decided to use this low-cost TP4056 battery charger. Anyway, for now we will focus on how to monitor the battery voltage and percentage. I have also designed my own single cell 3.7V Lipo and Lithium ion battery charger, I will explain this in one of my upcoming articles and videos. This will definitely protect the battery from exploding and it will also increase the battery life span.As this is a basic article, so I won’t make things complicated. But what if we monitor the battery voltage and also add a pair of mosfets so that when the battery voltage increases above or drops below certain threshold values the controller will immediately connect/disconnect the battery. Now, you can imagine what’s going to happen to this 3.7V Lipo battery if I directly connect it to ESP32, or ESP8266, or any other 3.3V controller board If there is no voltage monitoring and automatic disconnection circuitry, this Lipo battery won’t survive for long. There wasn’t any voltage monitoring system so I had no idea when to stop flying the drone. It looks like a new battery as I have been charging it using my Imax charger, but its dead now because of over-discharging as I was pushing it to its maximum limits. Just take a look at this Lipo battery, I used it to fly my racing drone. Like this Imax charger I have been using it for months and until now its working just fine.Īnyway, just like Overcharging, the battery over-discharging is also not a good thing because if you continuously over-discharge or completely drain your battery it will tremendously reduce the battery life span. So, just don’t purchase a cheap battery charger buy the one that has a charge protection circuit. Thank God I was at home so I quickly put out the fire. ![]() The Lipo Battery overcharged and caught fire. You can clearly see there is no protection circuit. Being an engineer, when I knew all about it, I still made the most stupid decision by purchasing this battery charger. Overcharging can make your battery explode and it has practically happened to me. You need to be very careful while working on battery-powered projects as you are not supposed to Overcharge and Over-discharge your Lipo or Lithium Ion battery.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |