Haw to make a powerbank at home

halo friend aapke liye meri ek nai post hajir akasar kay hota hai ki hamare phone ki aattry jaldhi down hojati hai kivaki hu apne pho6ne me pubg free fire jaise game khelte hai taya hu aoaj me apke liye isaka upay lekar a ek gharelu nuska jisase hum apna phoone charge kar sakte hai to chli ye banate hai gharka nahi nahi khudka ? p2ar banayenge kay dosto hum banayenge ek pawar bank keval $60 me jiske liye hume chahixeng4i 2laptop bat8try or ek power bank shokit ek otg cabel ye sab cije ahapko phone par mil jayengi ek b atry fiter t 1.laptop Battry fiter me fit kar de 2.or uske upar shoket feet karde 3.shoket or abttry ka conection karde and ready your home maid power bank 4000mah 5.3volt