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Switcher Hangout (Windows to Mac)
Mac Battery 100% and good, but dies
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<blockquote data-quote="RadDave" data-source="post: 1786655" data-attributes="member: 234411"><p>@ <strong>Pchorner</strong> - there were <a href="https://everymac.com/systems/apple/macbook-air/specs/macbook-air-core-i5-1.7-13-mid-2011-specs.html" target="_blank">4 mid-2011 MB Air models</a> according to the EveryMac website and two different batteries were offered, i.e. 35 & 50 Wh which impacts on the mAh, so not sure what the mAh 'design capacity' might have been originally in your laptop - below is a <a href="https://www.coconut-flavour.com/coconutbattery/" target="_blank">Coconut Battery</a> assessment of my MBAir (early 2015) - battery health is 100% w/ only 13 cycles (I keep this laptop plugged to AC most of the time).</p><p></p><p>Now making an assumption that your battery's original 'design capacity' was 7200 mAh, then the 4747 mAh being reported calculates to about a 65% battery health w/ your 900+ cycles; of course, if your battery had few initial mAhs, they your battery health would be higher. As others have suggested you likely need a new battery - check the appropriate <a href="https://www.ifixit.com/Search?query=mid+2011+macbook+air+battery+replacement" target="_blank">iFixit Guide</a> if you want a DIY task? Dave <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>ADDENDUM: Another app on my laptops is <a href="https://fiplab.com/apps/battery-health-for-mac" target="_blank">Battery Health</a> which provides similar information!</p><p></p><p>.</p><p>[ATTACH=full]27902[/ATTACH] [ATTACH=full]27904[/ATTACH]</p></blockquote><p></p>
[QUOTE="RadDave, post: 1786655, member: 234411"] @ [B]Pchorner[/B] - there were [URL="https://everymac.com/systems/apple/macbook-air/specs/macbook-air-core-i5-1.7-13-mid-2011-specs.html"]4 mid-2011 MB Air models[/URL] according to the EveryMac website and two different batteries were offered, i.e. 35 & 50 Wh which impacts on the mAh, so not sure what the mAh 'design capacity' might have been originally in your laptop - below is a [URL="https://www.coconut-flavour.com/coconutbattery/"]Coconut Battery[/URL] assessment of my MBAir (early 2015) - battery health is 100% w/ only 13 cycles (I keep this laptop plugged to AC most of the time). Now making an assumption that your battery's original 'design capacity' was 7200 mAh, then the 4747 mAh being reported calculates to about a 65% battery health w/ your 900+ cycles; of course, if your battery had few initial mAhs, they your battery health would be higher. As others have suggested you likely need a new battery - check the appropriate [URL="https://www.ifixit.com/Search?query=mid+2011+macbook+air+battery+replacement"]iFixit Guide[/URL] if you want a DIY task? Dave :) ADDENDUM: Another app on my laptops is [URL="https://fiplab.com/apps/battery-health-for-mac"]Battery Health[/URL] which provides similar information! . [ATTACH=FULL]27902[/ATTACH] [ATTACH=FULL]27904[/ATTACH] [/QUOTE]
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Mac Battery 100% and good, but dies
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