![]() ![]() If you're still making the connection with the adapter, there's no reason to change. Yellowing of the plastic has nothing to do with performance - it has to do with UV exposure to the plastic. If your charger still works and is safe you have no reason to change it. The cable has become more and more yellow, and the plugs are slightly bent out of shape, although it still works. My 60W MagSafe 1 charger (L-shape) has had some parts of the outer cable torn (half of it covered in electrical tape). It's not a hard and fast rule (unfortunately, too many people believe it is). The "1000 cycles" is just a marketing estimate of how many types you can charge cycle the battery so you can estimate (budget) for battery replacement. Batteries generally have a useful life of 3 to 5 years. You are definitely several standard deviations from the norm on the right side bell curve that represents charge cycles and battery life. My battery over the years has underwent 2000+ cycles, and can only last at most 2-3 hrs from 100% to 0% currently ![]() You might find this post quite relevant: Quality factors relevant for getting a replacement battery (MacBook Pro (13-inch, Mid 2012)) If it is, try to get every charge cycle you can out of it (I'm a big proponent prolonging the life of products to minimize e-waste.) The question you have to ask yourself is whether or not the battery, in it's current state is still usable to you. I would replace the battery only if having 2-3 hours of usable charge is no longer convenient. If so, what should I replace in order to increase my MacBook Pro’s battery life? ![]()
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