Question

why do we need to change a battery after long use

Answer 1

because its capacity or power will decrease
it has the limit after that we can't use it for further use

Answer 2

Hey mate,
Here's your answer,...
We have to change the battery after long use, cos it will decrease the energy ⚡⚡ capacity in the battery... And it will also get heated up fast,.... Creating damage to the phone,...

Hope it helps
Pls mark me as the brainliest ...