How to Make Universal Charger for All Mobile Battery tagalog 

Guys pasensya napo sa video ko at sana kht konti may natutunan po kayo.. kung may tanong po kyo comment lng po kyo at mg subscribe🙏
ps: make sure po na hindi magkakabalikatad ung polarity pasitive to pasitive negative to negative
pde din po wag ng lagyan ng ilaw pra hndi na po kayo gaano mahipan