Like many modern electronics, Apple’s line of Macbook computers use an integrated rechargeable battery to power the device. After extended use, this rechargeable battery will become weaker and it will eventually not even be able to hold a charge. Apple has stated that their newer Macbook batteries are rated for 1000+ recharge cycles, but this can vary in most cases and sometimes this number is a lot less. If you'd like to see what your specific Macbook model's battery is rated for then click here.
I recently was having issues with poor battery life on my 15″ Retina Macbook Pro (Mid 2012) so I used the method below to check my computer’s battery health and cycle count to see if I could get to the bottom of the issue.
1. Click On The Apple Logo (Top Left)
2. Click On ‘About This Mac’
3. Click On ‘More Info…’
4. Click On ‘System Report…’
5. Click On ‘Power’
6. View Your Battery Health & Cycle Count
If your condition says “Service Battery” like mine does then you'll want to get ahold of Apple Support to get it repaired (especially if you have AppleCare) otherwise if you see “Fair” or “Normal” then your battery should be healthy enough for regular performance. Hope this helps!
Photo Credit: Kazuho Okui