Hello guys aaj ke Is video me ham ek tha variable dc power supply banayenge. Isse aap voltage aur current (ampere) ko apne anusar set karke jo chalo o chala sakte ho. Is veriable leb bench power supply se aap 1 - 36 volt and 5Amp output le sakte hai Aur yah 12volt battery charger ( lithium ion battery, lead acid battery, 18650 battery ) all types of battery charge kar sakte hai. is dc power supply ko banana bahut easy hai aur making cost 2800 rupees aayi hai. More information ke liye video complete dekhe.