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Apple Computing Products:
macOS - Notebook Hardware
Battery care
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<blockquote data-quote="RadDave" data-source="post: 1714359" data-attributes="member: 234411"><p><strong>Nick</strong> has already given you some great information and the links in his signature provide further details - if not done, take a look!</p><p></p><p>Also, you're trying to 'over think' this battery issue, i.e. should the computer be constantly plugged into AC vs. intermittent complete exhuastations of the battery w/ recharging? How do 'cycles' enter into the picture?</p><p></p><p>Likely, a number of different approaches can be used which will produce similar results - my MBPro is now just over 3 years old, initially I would discharge the battery near completely (maybe for a year and a half), then I decided to simply leave the laptop on AC power w/ a complete discharge about once a month to recalibrate the battery's monitoring system - not sure that there is much difference?</p><p></p><p>I have two battery apps on my laptop, i.e. <em>Coconut Battery</em> (already mentioned) & <em>Battery Health</em> - just ran both which showed 226 cycles & 87% battery health (first image below); now if you run a system report, the same information can be obtained by simply knowing the original mAh of your battery (see my second image below) - the apps are simply reading the information already available through the report shown.</p><p></p><p>Now, the current Apple laptop batteries should provide about 80% residual charge after 500 cycles, and should be good for nearly twice that many (check this <a href="https://support.apple.com/en-us/HT201585" target="_blank">Apple LINK</a> for details) - NOW, for a computer from 2009, you seem to be doing quite well - what you need to tell us is how many cycles has that battery seen? Simplest way is to go the the Apple in the left upper menu bar -> About This Mac -> System Report - then select 'Power' (as in my second image) - 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>.</p><p>[ATTACH=full]24392[/ATTACH][ATTACH=full]24393[/ATTACH]</p></blockquote><p></p>
[QUOTE="RadDave, post: 1714359, member: 234411"] [B]Nick[/B] has already given you some great information and the links in his signature provide further details - if not done, take a look! Also, you're trying to 'over think' this battery issue, i.e. should the computer be constantly plugged into AC vs. intermittent complete exhuastations of the battery w/ recharging? How do 'cycles' enter into the picture? Likely, a number of different approaches can be used which will produce similar results - my MBPro is now just over 3 years old, initially I would discharge the battery near completely (maybe for a year and a half), then I decided to simply leave the laptop on AC power w/ a complete discharge about once a month to recalibrate the battery's monitoring system - not sure that there is much difference? I have two battery apps on my laptop, i.e. [I]Coconut Battery[/I] (already mentioned) & [I]Battery Health[/I] - just ran both which showed 226 cycles & 87% battery health (first image below); now if you run a system report, the same information can be obtained by simply knowing the original mAh of your battery (see my second image below) - the apps are simply reading the information already available through the report shown. Now, the current Apple laptop batteries should provide about 80% residual charge after 500 cycles, and should be good for nearly twice that many (check this [URL="https://support.apple.com/en-us/HT201585"]Apple LINK[/URL] for details) - NOW, for a computer from 2009, you seem to be doing quite well - what you need to tell us is how many cycles has that battery seen? Simplest way is to go the the Apple in the left upper menu bar -> About This Mac -> System Report - then select 'Power' (as in my second image) - Dave :) . [ATTACH=FULL]24392[/ATTACH][ATTACH=FULL]24393[/ATTACH] [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Battery care
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