text: arey,kya tumne suna, naye smartphone mein ab bina charger ke bhi battery kaise badiya chalti hai? mujhe samajh nahi aata yeh kaise possible hai.haan, suna hai! ye energy-saving technology hai, jisse phone ki battery zyada der tak chalti hai, aur yeh toh bas shuruat hai, aage kya hoga soch ke hi hairaani hoti hai!