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Helpful answers
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Aug 14, 2016 10:36 AM in response to Coder_slsby Allan Eckert,To figure out if you want to try ti view
https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Unibody+Early+2011+Battery+Repl acement/5116
https://www.ifixit.com/Guide/MacBook+Pro+15-Inch+Unibody+Early+2011+Battery+Repl acement/5889
https://www.ifixit.com/Guide/MacBook+Pro+15-Inch+Unibody+Late+2011+Battery+Repla cement/7511
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Aug 14, 2016 3:07 PM in response to Coder_slsby K Shaffer,While considering the MacBook, you may think about a replacement
hard drive, too; they wear and need replaced. The MacBook can see
a longer life with a few parts every few years. iFixit guides give views.
Good luck!
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Aug 14, 2016 7:27 PM in response to K Shafferby Coder_sls,Thanks.
Hopefully it improve the battery life and performance (memory upgradation). Typically, are the other parts of the system - trackpad, keyboard, display,etc - can they be expected to last longer, may be 2-4 years more?
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Aug 15, 2016 5:52 PM in response to Coder_slsby K Shaffer,Hard to say just how long the other parts may keep working;
some user experience suggests it may be years if nothing else
happens to the computer, such as accident or power surge, etc.
Some models even with a questionable service life can have
exceptions, and variables can happen in any build series.
I have an iBook G4 Mid-2005 12-inch portable that's 11 years
old, the only things wrong with it mostly were built in. Lack of
more storage, due to smaller hard drive. No superdrive. And a
lack of upgrade beyond OS X Leopard 10.5.8. An SSD upgrade
may cure most of what ails it. Plus a new battery.
My other older computers are about the same vintage, different
build models; one is first model MacBook1.1 13-inch 1.83GHz
coreduo; it also runs Leopard 10.5.8. Does well enough. It was
given to me, & was second or third hand used. Another item is
a last model G4 Mac Mini 1.5GHz, also runs Leopard 10.5.8. It
is a candidate for an SSD drive since that would speed it up.
Rotational hard drives tend to be the speed bottleneck or choke
point in data flow, and when an OS relies on virtual memory or
use of drive space as temporary swap or VM capacity, that drive
can be an issue. The read and write speeds to the drive can slow
the entire computer down when the load is greater than capacity
of the hardware. Solid-State-Drives have no moving parts, so they
are inherently faster to move data. That is an upgrade to consider.
These are repairable, so long as you can get parts. When nobody
local has the parts, you just locate someone out of the area & send
the computer to them for repair. A reputable authorized shop. At
some point in time, undetermined, the unit may -or not- just stop.
Anyway, the battery and hard drive are items that some users can
successfully accomplish replacement; the drive is more effort due
to the necessity to have a backup of the old drive content. And to
migrate or clone the old drive content to new replacement drive.
Suitable backups and a reliable strategy can be a matter of study.
In any event...
Good luck & happy computing!