Make life-time battery for clock⏰/Make Rechargeable battery for clock/3.7 volt to 1.5 volt converter

#lifetimeclockbattery #3.7voltto1.5volt# friends aaj ki is video mein hum clock ⏰ ke liye life time battery banane wale hai jisko aap ek baar charge kar ne par 2 saal chala sakte hai aur wapis se charge bhi kar sakte hai 🔋⚡ sabse saste electronics component link-https://quartzcomponents.com?sca_ref=... material need- 1.lithium cell 2000 mah 2.resistance 10k 3.Bc 547 transistor 4 . lithium charging circuit-https://amzn.to/38m2VgR 5.clock ⏰