12-30-2012, 07:52 PM #1
2011 13" MBP has 234 battery cycles and 83% health. Is it normal?
- Member Since
- Dec 30, 2012
I just bought a used 2011 13" MBP with 234 battery cycles and 83% health. Current capacity is 4764mAh :Coconut Battery results.
Is this normal? I thought the newer models are rated at 1000 cycles/ 80%.
Thanks in advance.
12-31-2012, 01:22 PM #2
- Member Since
- Sep 10, 2011
- iMac 27" Mid 2010, 3.2GHz Intel Core i3,12GB 1333 MHz DDR3, ATI Radeon HD5670 512MB, El Cap 10.11
Sometimes it's just a matter of living with what you have. You don't know the previous owner's charge regime..so the best thing I can suggest is that you calibrate the battery as per this link Apple Portables: Calibrating your computer's battery for best performance and then start from there.
The % health figures can be slightly misleading, capacity drops as part of cycling but most manufacturers tend to overstate the capacity..the reality is that a new battery can enter the marketplace at considerably less than 100%. One study done with Li-ion smartphone batteries showed starting capacities at between 88 and 94% with the capacity dropping to 73-84% after 250 full discharge cycles *
From what I see there is nothing unusual about your battery's health.
*Courtesy of CadexiMac 27-inch Mid 2010 (wow....that old...eeeks!), WD My Book 1TB Firewire,WD My Passport Air 500GB, Magic Mouse,Magic Trackpad,
iPhone 5C, iPod Nano 4GB 3rd Gen, ATV2.
MOTM October 2012. These days normally happy with an occasional grumble.
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