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But the bigger question is, did you buy a MBP to sit at a desk all day? If so, you should have bought an iMac instead - there's no battery so you eliminate this problem altogether.
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Whether that cycle takes a half day, a full day or a week all depends on how you use it but I am guessing you didn't buy a MBP to sit on a shelf all day long doing nothing.Įven when you keep your MBP plugged in, you are reducing the per day cycle count however you are not eliminating it. A 20% discharge 5 times over is one cycle, a 5% discharge 20 types is also one cycle. A complete discharge and recharge is one cycle. No matter what you do, you can't change the laws of physics and lithium batteries are governed by age and the number of charge cycles. Lithium cells are actually quite simple to charge.ĭon't worry about it and just use your MacBook Pros for what you bought them for. The statement "For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally." from Apple's site is actually incorrect regarding the lithium battery chemistry at worst, and an oversimplification at best.įurthermore, The battery metering and battery charging systems are separate, so inaccuracies in the battery metering system will not cause errors in charging the battery (before you ask). However, the actual battery capacity and runtime will be unchanged from normal. It is not needed to maintain the battery itself, and actually wastes a battery cycle.īasically, if you don't run your battery down for a long time, the next time you disconnect the laptop from AC, the estimated time remaining value will be incorrect. Periodically draining the battery only serves to allow the Battery metering systems to accurately estimate the remaining battery capacity. It only serves to allow the battery capacity meter to accurately track the battery capacity. The nature of the lithium battery chemistry does not require periodic cycling to maintain capacity.įurthermore, the periodic cycling described in the apple documents listed above Post) does not have an effect on the battery chemistry. – When the LED on the head of the AC connector is amber, your Macbook is charging, and when it’s green, you’re fully charged.No.
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– Do not use the charger with wrong mac model. – Do not place it in high temperature or humidity circumstance. – Put it at a dry and cold place when charging.
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*24-hour Professional Customer Service 85W MacBook Pro Power Adapter Usage Tips: *30-day Return Policy (excluding misuse or damages)
#Macbook pro power cord tip replacement for mac#
MacBook Pro (13/15/17-inch, Mid 2012), Mac Book Pro (13/15/17-inch, Late 2011), Mac Book Pro (13/15/17-inch, Early 2011), Mac Book Pro (13/15/17-inch, Mid 2010), Mac Book pro(13/15/17-inch, Mid 2010), Mac Book pro(13/15/17-inch, Late 2009)ġ X Replacement for Mac Book Pro Charger 85W L-Tip Power Laptop Adapter Chargers for Old Mac Book Pro 15-inch and 17-inch(Before Mid 2012 Models) AU Plug 85W Magnetic L-Type Battery Charger for MacBook Pro 13/15/17-Inch（Before Mid 2012) Warranty & Support: 【Quality Assurance & Highly Protection】: Macbook Pro battery charger manufactured with the highest quality materials and include multiple smart features safeguarding against over current,over voltage,over load,short-circuit protection and auto recovery,UL/CE/FCC/RoHS certified.Ĩ5W L-Style Power Charger Replacement for Apple Macbook Pro A1222, A1172, A1343 Specification:.LED light provides status info, an amber light lets you know that your Mac Book is charging, while a green light tells you that you have a full charge. 【Easy To Carry】 Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy storage.The magnetic helps guide the plug into the system for a quick and secure connection. 【High Speed & Safe Charging】 The 85W AC Adapter features a magnetic connector that ensures your power cable will disconnect harmlessly if it experiences undue strain and helps prevent fraying or weakening of the cables over time.Description Replacement MacBook Pro Charger, 85W L-Tip Laptop Charger for MacBook Pro 15″ 17″(Before Mid 2012 Models) Technical Features:
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