When To Change Mobile Battery. An Apple Authorized Service Provider can replace the battery to restore full performance and capacity. The phone is dead means it will never come up and show any signs of power in the phone even with enough charging and good chargers which means it cant hold a charge to power the phone from its stored energy.

The phone is dead means it will never come up and show any signs of power in the phone even with enough charging and good chargers which means it cant hold a charge to power the phone from its stored energy. Use a tool made of plastic to remove the batterys wires and the motherboard. Of course lifespans vary depending on the model of phone you have but you should go by the best practice of around 24 months.
A new battery should last 1-2 years of normal use 2-3 readings a day Battery is a CR2016 available at most general-purpose stores.
It is the most obvious sign as just after the first year of use the health of our smartphone battery may begin to show signs of degradation. If your device heat during a game or certain app you should try to avoid using it on the heat for long. Debunking Battery Life Myths for Mobile Phones Tablets and Laptops. Heres a link for iPad battery replacement.

