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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Fiora @ 日本語でFF14‏ @FioraAeterna 1 May 2015
      • Report Tweet
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      Fiora @ 日本語でFF14 Retweeted Ramez Naam

      is it just me or does none of the Tesla battery news say how many cycles before it's useless due to memory effecthttps://twitter.com/ramez/status/594152362253488128 …

      Fiora @ 日本語でFF14 added,

      Ramez NaamVerified account @ramez
      The Economics of Tesla's Batteries: Heading Towards Disruption. http://rameznaam.com/2015/04/30/tesla-powerwall-battery-economics-almost-there/ … pic.twitter.com/KrQ24WFvmw
      5 replies 2 retweets 1 like
    2. Hector Martin‏ @marcan42 1 May 2015
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      Replying to @FioraAeterna

      @FioraAeterna Li-Ion batteries don't have memory effect - that was a Ni-Cd thing. They do degrade with time and use though.

      1 reply 0 retweets 1 like
    3. Hector Martin‏ @marcan42 1 May 2015
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      Replying to @marcan42

      @FioraAeterna Capacity loss is a strong function of charge level. Portable devs tend to push Li batteries hard at the expense of longevity.

      1 reply 0 retweets 2 likes
    4. Fiora @ 日本語でFF14‏ @FioraAeterna 1 May 2015
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      Replying to @marcan42

      @marcan42 does this mean the usual advice of "always fully discharge when possible" is the opposite of correct?

      3 replies 0 retweets 1 like
    5. Filipe Cabecinhas‏ @filcab 1 May 2015
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      Replying to @FioraAeterna

      @fioraaeterna @marcan42 Apple says there's no need for that (for Li-ion): https://www.apple.com/batteries/why-lithium-ion/ …

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 1 May 2015
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      Replying to @filcab

      @filcab @FioraAeterna Yes, "always fully discharge before charging" is bad for Li-ion. It just causes a longer (worse) charge cycle.

      9:24 AM - 1 May 2015
      0 replies 0 retweets 0 likes

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