New Delhi, Dec. 1 -- Battery life is one of the first things people think about when choosing a new device. Phones and tablets may seem similar on the surface, but their batteries behave quite differently as they age. You may have noticed that a tablet bought years ago still lasts through long sessions of video streaming, while a phone of the same age struggles to reach the end of the day. The reason for this difference lies in how real battery capacity diverges from rated capacity over time, along with the way each device is designed, used, and optimised. Understanding these contrasts helps you make better decisions when buying or using a tablet or phone, especially if long-term battery health matters to you.

Every battery arrives with ...