When Should I Replace My Macbook Battery. I replaced a couple in my life. I would replace the battery only if having 2-3 hours of usable charge is no.

You can check the status of the MacBook battery by using the inbuilt tool. I use an older MacBook showing Service Battery at home. If your MacBook is less than a year old and experiencing battery issues then Apple should replace your battery for free.
Disconnect any cords connected to the computer.
If your Macbook gets hot or is showing signs of bulging those are pretty sure additional indications the battery needs replacing. I replaced a couple in my life. Answer 1 of 3. Ask Apple for a.

