Below is further information about when to decide to replace laptop battery.
You can check the condition of your MacBook’s battery with click on the battery icon in the menu bar. You will see some conditions:
Normal : the battery is functioning normally.
Replace Soon: the battery is functioning but holds less charge than it did when it was new.
Replace Now: the battery is functioning formally but holds significantly less charge that it did when it was new.
Service Battery: the battery is not functioning normally.
When to decide to replace laptop battery with looking its cycles
For MacBooks, Apple’s battery can last through 1000 cycles. A cycle count means using all your battery power and then fully recharging it. To check where your battery stands, use the System Report tool.
If your battery needs to be replaced, you can pay between $130 and $199 for battery service.