How to Make a 12V Lead Acid Battery Charger with CC & CV || PCB for Automatic Battery Charger

#12VUPS #12vbatterycharger #lm317 In this video I will show you how to make a battery charger for 12V lead acid battery commonly used in UPS for desktop PC. The circuit is based on the most popular IC LM317 and few passive components like resistor and capacitors. The charger implements constant current and constant charging mode. Your one-stop PCB prototype Partner PCBWay: Download the Schematic Diagram, BOM and Gerber files from PCBWay. Support me on Patreon: Credit : 1. 2 x Screw Terminals 2. 1 x 1000uF Capacitor 3. 1x Capacitor 4. 1x 220uF Capacitor 5. 1x 5mm LED 6. 4x 1N4007 Diodes 7. 1x BC557 PNP Transistor 8. 1x BC547 NPN Transistor 9. 1x IRF540 N-Channel MOSFET 10. 5 x 1k Resistors 11. 3x 10k Resistors 12. 1x 33k Resistor 13. 1x Resistor 14. 1x LM317 Voltage Regulator 15. 1x LM358 OPAMP 16. 1x /2W Resistor 17. Heat Sink ------------------------------- Video Time Stamp ------------------------------- 00:00 - Intro 00:35 - How the Circuit Works 02:41 - PCB Design 02:47 - PCBWay Sponsorship 03:04 - Support me On Patreon 03:20 - PCB Assembling 08:18 - Testing of Charger PCB