“I Built a DIY Power Backup You’ll Want to Copy (Under $10!)”

DIY Multi-Purpose Power Device! (Must Try This Genius Hack) 🔋 Build this DIY Multi-Purpose Power Device! This smart gadget lets you charge any battery from 1.5V to 38V with automatic cut-off and amp control. You can also test any LED with amp readings. Perfect for DIYers, tech enthusiasts, and anyone who loves electronics! 📌 What This Device Can Do: ✅ Universal Battery Charger – Works with 1.5V, 3.7V, 12V, 24V, up to 38V batteries! ✅ Automatic Cut-Off Feature – Prevents overcharging & protects battery life ✅ Adjustable Amp Control – Charge safely & efficiently ✅ LED Testing Mode – Check any LED with accurate amp readings ✅ Multi-Purpose DIY Power Tool – Great for electronics projects & repairs ⚡ Why You Need This Gadget? ✅ Charge batteries safely with amp control ✅ Avoid battery damage with auto cut-off ✅ Test LEDs & other components with ease ✅ DIY your own smart energy device at home! 🎥 Watch the full video to see how to build this genius gadget! 🚀 Subscribe for more DIY tech projects: [Your Channel Link] 📢 Share this with your friends who love electronics! 💬 Comment below – What will you use this device for? #batterysystems How to make a battery charger and bench power supply at home Items used in the content: 1. 18650 lithium ion battery 2. 20 amp 3s BMS module 3. Digital amp voltmeter module 4. 250W power boost LED driver module. 5. XL4015 stepdown buck converter module 6. Banana male female socket 7. Aluminum knob 8. Toggle on/off switch 9. For the circuitry I use the brass wires.